Platinum Sentence Examples
Where was platinum, palladium, scandium, coal or peanuts slacking off?
Yes. It was a platinum card.
The gangly youth before him had dyed his hair from platinum back to its natural color of black.
He opened the box to reveal a man's platinum signet ring with the half-moon, half-sun, and arrow symbol neatly carved on its head.
This plate is supported by a platinum wire sealed through the glass.
In it the electrodes were of platinum and carbon.
Vauquelin in 1797, and Klaproth's investigation of tellurium in 1798, the next important series of observations was concerned with platinum and the allied metals.
Boron nitride BN is formed when boron is burned either in air or in nitrogen, but can be obtained more readily by heating to redness in a platinum crucible a mixture of one part of anhydrous borax with two parts of dry ammonium chloride.
Platinum and the allied compound metal iridosmine have been found in New South Wales, but so far in inconsiderable quantities.
The platinum strips are exceedingly minute, being in some cases only 2 5 p in.
AdvertisementFor example, if vapours of the volatile metals cadmium, zinc and magnesium are allowed to act on platinum or palladium, alloys are produced.
Another steel containing 45% of nickel has, like platinum, the same coefficient of expansion as glass.
In the alluvial deposits the associated minerals are chiefly those of great density and hardness, such as platinum, osmiridium and other metals of the platinum group, tinstone, chromic, magnetic and brown iron ores, diamond, ruby and sapphire, zircon, topaz, garnet, &c. which represent the more durable original constituents of the rocks whose distintegration has furnished the detritus.
In this meter the electrolyte is a solution of mercurous nitrate which is completely enclosed in a glass tube of a particular form, having a mercury anode and a platinum or carbon cathode.
The rotation of the mercury is detected and measured by means of a small vane of platinum wire immersed in it, the shaft of this vane being connected by an endless screw with a counting mechanism.
AdvertisementTo prepare the cadmium amalgam, one part of pure cadmium is dissolved in six parts of pure mercury, and the product while warm and fluid is placed in one limb of the cell and warmed, to ensure perfect contact with the platinum wire.
Edison in the United States, were engaged in struggling with the difficulties of producing a suitable carbon incandescence electric lamp. Edison constructed in 1879 a successful lamp of this type consisting of a vessel wholly of glass containing a carbon filament made by carbonizing paper or some other carbonizable material, the vessel being exhausted and the current led into the filament through platinum wires.
Platinum locks will turn heads, while a dark ravine hue will add an aura of mystery.
Platinum locks look very cool with chunky lowlights weaved in.
Today, Heidi Klum wears a modern platinum blonde shag on Project Runway.
AdvertisementIn addition to varied hair color, a solid color in a vibrant shade such as platinum, scarlet, or shiny ebony will enhance the bob shape while adding an inarguable level of sophistication.
In batteries which use acids as the electrolyte, a film of hydrogen tends to be deposited on the copper or platinum electrode; but, to obtain a constant electromotive force, several means were soon devised of preventing the formation of the film.
It is found that the most accurate and convenient apparatus to use is a platinum bowl filled with a solution of silver nitrate containing about fifteen parts of the salt to one hundred of water.
Hittorf showed that when a current was passed through a solution of sodium platino-chloride, the platinum appeared at the anode.
The salt must therefore be derived from an acid, chloroplatinic acid, H 2 PtC1 6, and have the formula Na 2 PtC1 6, the ions being Na and PtCls", for if it were a double salt it would decompose as a mixture of sodium chloride and platinum chloride and both metals would go to the cathode.
AdvertisementPlates of platinum and pure or amalgamated zinc are separated by a porous pot, and each surrounded by some of the same solution of a salt of a metal more oxidizable than zinc, such as potassium.
But, on the other hand, if a few drops of acid be placed in the vessel with the platinum, bubbles of hydrogen appear, and a current flows, zinc dissolving at the anode, and hydrogen being liberated at the cathode.
If we connect together in series a single Daniell's cell, a galvanometer, and two platinum electrodes dipping into acidulated water, no visible chemical decomposition ensues.
Now let us disconnect the platinum plates from the battery and join them directly with the galvanometer.
These phenomena are explained by the existence of a reverse electromotive force at the surface of the platinum plates.
When we use platinum electrodes in acidulated water, hydrogen and oxygen are evolved.
This irreversibility is due to the work required to evolve bubbles of gas at the surface of bright platinum plates.
If the plates be covered with a deposit of platinum black, in which the gases are absorbed as fast as they are produced, the minimum decomposition point is 1.07 volt, and the process is reversible.
Platinum, palladium and tin are occasionally deposited for special purposes.
As in Hopkinson's experiments, ring magnets were employed; these were wound with primary and secondary coils of insulated platinum wire, which would bear a much higher temperature than copper without oxidation or fusion.
The temperature was determined by a platinum-rhodium and platinum thermo-j unction in contact with the metal.
Debray (1827-1888) he worked at the platinum metals, his object being on the one hand to prepare them pure, and on the other to find a suitable metal for the standard metre for the International Metric Commission then sitting at Paris.
Among the minerals are silver, platinum, copper, iron, lead, manganese, chromium, quicksilver, bismuth, arsenic and antimony, of which only iron and manganese have been regularly mined.
In chemistry he made a speciality of the platinum metals.
Platinum itself he discovered how to work on a practical scale, and he is said to have made a fortune from the secret, which, however, he disclosed in a posthumous paper (1829); and he was the first to detect the metals palladium (1804)(1804) and rhodium (1805) in crude platinum.
Richard Chevenix (1774-1830), a chemist, having bought some of the substance, decided after experiment that it was not a simple body as claimed, but an alloy of mercury with platinum, and in 1803 presented a paper to the Royal Society setting forth this view.
This uranate when ignited in a platinum crucible leaves a green oxide of the composition U308, i.e.
The beaker also is cautiously filled with acidulated water up to a point beyond the edge of the platinum basin.
The surface of vessels may be spangled with gold or platinum by rolling the hot glass on metallic leaf, or iridescent, by the deposition of metallic tin, or by the corrosion caused by the chemical action of acid fumes.
As liquidity might be looked upon as the ne plus ultra of softness, this is the right place for stating that, while most metals, when heated up to their melting points, pass pretty abruptly from the solid to the liquid state, platinum and iron first assume, and throughout a long range of temperatures retain, a condition of viscous semi-solidity which enables two pieces of them to be "welded" together by pressure into one continuous mass.
To give an idea of what can be done in this way, it may be stated that gold can be beaten out to leaf of the thickness of - j g - mm.; and that platinum, by judicious work, can be drawn into wire 2?o o mm.
In the oxyhydrogen flame silver boils, forming a blue vapour, while platinum volatilizes slowly, and osmium, though infusible, very readily.
Mercury, if pure, and all the "noble" metals (silver, gold, platinum and platinum-metals), are absolutely proof against water even in the presence of oxygen and carbonic acid.
A group (C) may be formed of mercury, silver, gold and platinum, which are not touched by either aqueous acid in any circumstances.
Hot (concentrated) sulphuric acid does not attack gold, platinum and platinum-metals generally; all other metals (including silver) are converted into sulphates, with evolution of sulphur dioxide.
Gold, platinum, iridium and rhodium only are proof against the action of this powerful oxidizer.
But of the rest the majority, when treated with boiling sufficiently strong alkali, are attacked at least superficially; of ordinary metals only gold, platinum, and silver are perfectly proof against the reagents under consideration, and these accordingly are used preferably for the construction of vessels intended for analytical operations involving the use of aqueous caustic alkalis.
Basins made of pure malleable nickel are free from this drawback; they work as well as platinum, and rather better than silver ones do.
There is hardly a single metal which holds out against the alkalis themselves when in the state of fiery fusion; even platinum is most violently attacked.
Of the several products, the chlorides of gold and platinum (AuC13 and PtC1 4) are the only ones which when heated beyond their temperature of formation dissociate into metal and chlorine.
All chlorides, except those of silver and mercury (and, of course, those of gold and platinum), are oxidized by steam at high temperatures, with elimination of hydrochloric acid.
A rod of perfectly pure zinc, when immersed in dilute sulphuric acid, is so very slowly attacked that there is no visible evolution of gas; but, if a piece of platinum, copper or other more electro-positive metal be brought into contact with the zinc, it dissolves readily, with evolution of hydrogen and formation of the sulphate.
Aluminium, iron, platinum and many other metals may thus take up so much carbon as to become brittle and unforgeable.
A better method is Wohler's, in which the finely powdered mineral is fused with twice its weight of potassium carbonate in a platinum crucible, the melt powdered and treated in a platinum basin with aqueous hydrofluoric acid.
The pure salt is dissolved in hot water and decomposed with ammonia to produce a slightly ammoniacal hydrated oxide; this, when ignited in platinum, leaves pure TiO 2 in the form of brownish lumps, the specific gravity of which varies from 3.9 to 4.25, according to the temperature at which it was kept in igniting.
They are all strong bases, readily forming salts with the mineral acids and double salts with the chlorides of gold, platinum and mercury.
Aromatic Amines.-The aromatic amines in some respects resemble the aliphatic amines, since they form salts with acids, and double salts with platinum chloride, and they also distil without decomposition.
It may be diminished by introducing clippings of platinum foil, pieces of porcelain, glass beads or garnets into the liquid.
In the Linnemann column the condensed vapours temporarily collect on platinum gauzes (a) placed at the constrictions of a bulbed tube.
In the Le Bel-Henninger form a series of bulbs are connected consecutively by means of syphon tubes (b) and having platinum gauzes (a) at the constrictions, so that when a certain amount of liquid collects in any one bulb it syphons over into the next lower bulb.
Glass stills heated by a sand bath are sometimes employed in the final distillation of sulphuric acid; platinum, and an alloy of platinum and iridium with a lining of gold rolled on (a discovery due to Heraeus), are used for the same purpose.
Hermite, which consisted in the production of bleach-liquors by the electrolysis (according to the 1st edition of the 1884 patent) of magnesium or calcium chloride between platinum anodes carried in wooden frames, and zinc cathodes.
Many modifications have been patented by Hermite, that of 1895 specifying the use of platinum gauze anodes, held in ebonite or other frames.
It consists of a stoneware tank with a thin sheet of platinum-iridium alloy at either end forming the primary electrodes, and between them a number of glass plates reaching nearly to the bottom, each having a platinum gauze sheet on either side; the two sheets belonging to each plate are in metallic connexion, but insulated from all the others, and form intermediary or bi-polar electrodes.
Depending on the fact that the electrical conductivity of a metallic conductor is decreased by heat, it consists of two strips of platinum, arranged to form the two arms of a Wheatstone bridge; one strip being exposed to a source of radiation from which the other is shielded, the heat causes a change in the resistance of one arm, the balance of the bridge is destroyed, and a deflection is marked on the galvanometer.
The operation may be conducted in vessels of glass or platinum, and each pound of granulated metal is treated with a pound and a quarter of nitric acid of specific gravity 1.32.
Other undesirable impurities are the platinum metals, special treatment being necessary when these substances are present.
The acid treatment is generally carried out in cast iron pots; platinum vessels used to be employed, while porcelain vessels are only used for small operations, e.g.
For higher temperatures the bulb of the vapour density tube is made of porcelain or platinum, and is heated in a gas furnace.
In practice the solid or plummet is suspended from the balance arm by a fibre - silk, platinum, &c. - and carefully weighed.
Thin platinum wire was rendered incandescent by a voltaic current; a small incandescent electric lamp would now be found more satisfactory.
They found that if liquid acetylene in a steel bottle be heated at one point by a platinum wire raised to a red heat, the whole mass decomposes and gives rise to such tremendous pressures that no cylinder would be able to withstand them.
Bunsen may be regarded as the originator of the second method, and it was he who devised the small cone of platinum foil, sometimes replaced by a cone of parchment perforated with pinholes, arranged at the apex of the funnel to serve as a support for the paper, which is apt to burst under the pressure differences.
For its extraction from zircon the mineral is heated and quenched in water to render it brittle, and then reduced to a fine powder, which is fused with three to four parts of acid potassium fluoride in a platinum crucible.
The best metals for coinage are gold, silver, platinum, copper, tin, nickel, aluminium, zinc, iron, and their alloys; certain alloys of gold, silver, copper and nickel have the best combination of the required qualities.
The pipe was fixed in a horizontal position, and along the top wall ran a platinum wire wetted with sulphuric acid.
The whole current supplied to the house flows through an electrolytic cell consisting of a glass tube containing two platinum electrodes; the electrolyte is dilute sulphuric acid covered with a thin layer of oil to prevent evaporation.
Platinum is found in Landak and other parts of Borneo.
The fluorine, which is liberated as a gas at the anode, is passed through a well cooled platinum vessel, in order to free it from any acid fumes that may be carried over, and finally through two platinum tubes containing sodium fluoride to remove the last traces of hydrofluoric acid; it is then collected in a platinum tube closed with fluor-spar plates.
After the platinum wires have been sealed through the glass, a little aqua regia is placed in the cell legs until bubbles of gas arise from the platinum, when it is thrown out and replaced by a solution of mercurous nitrate.
Then, by the use of another piece of platinum as anode, mercury is electrolytically deposited upon the platinum, which may also be amalgamated by making it white hot in a Bunsen flame and plunging it in mercury.
Chemically pure chloride of potassium is most conveniently prepared from the pure perchlorate by heating it in a platinum basin at the lowest temperature and then fusing the residue in a wellcovered platinum crucible.
The filtrate is evaporated to dryness (in iron or platinum vessels) and the residue fully dehydrated by gentle ignition.
With reference to the materials of which standards of length are made, it appears that the Matthey alloy iridio-platinum (90% platinum, 10% iridium) is probably of all substances the least affected by time or circumstance, and of this costly alloy, therefore, a new copy of the imperial yard has been made.
For small standard weights platinum (Δ=21.45) and aluminium (Δ=2.67) are used, and also an alloy of palladium (60%) and silver (40%) (Δ=11.00).
Besides the above, the mineral resources of Mexico include coal, petroleum, asphalt, platinum, graphite, soda and marble.
Hydriodic acid, HI, is formed by the direct union of its components in the presence of a catalytic agent; for this purpose platinum black is used, and the hydrogen and iodine vapour are passed over the heated substance.
This needle is suspended by a fine platinum silver wire, and its normal position is such that the aluminium paddle blades are just outside the quadrantal-shaped plates.
In his earlier years he devoted himself to chemistry, both theoretical and applied, publishing papers on the preparation of gold and platinum, numerical relations between the atomic weights of analogous elements, the formation of aventurine glass, the manufacture of illuminating gas from wood, the preservation of oil-paintings, &c. The reaction known by his name for the detection of bile acids was published in 1844.
In some regions alluvial deposits are the resting places of gemstones and gold, platinum, &c.; it is from these deposits that the largest nuggets of gold have been obtained.
Various materials are used as supports for substances in the blowpipe flame; the principal are charcoal, platinum and glass or porcelain.
Platinum is employed in oxidizing processes, and in the fusion of substances with fluxes; also in observing the colouring effect of substances on the blowpipe flame (which effect is apt to be somewhat masked by charcoal).
He is known for a long series of researches on the constitution of alkaloids and of the albuminoid bodies, and for the preparation of several new series of platinum compounds and of hyposulphurous acid, H 2 S 2 O 4.
He was a man of more promise than performance, and his chief achievement was the discovery of the elements iridium and osmium, which he found in the residues from the solution of platinum ores (1804).
It is convenient to place the liquid in a short tube., a platinum wire sealed in at the bottom to convey the current reaching to the level of the open end.
If a thickwalled capillary tube is passed over the platinum tube and its length so adjusted that the liquid rises in it by capillary action just above the level of the tube, the spectrum may be examined directly, and the loss of light due to the passage through the partially wetted surface of the walls of the tube is avoided.
If a short length of platinum wire be inserted vertically into a lighted Bunsen burner the luminous line may be used as a slit and viewed directly through a prism.
When now a small bead of a salt of sodium or lithium is placed in the flame the spectrum of the white hot platinum is traversed by the dark absorption of the D lines.
Bedford, who compared directly the freezing points of dilute solutions with those of the pure solvent in similar conditions by the accurate methods of platinum thermometry.
Nitric acid is without action on gold, platinum, iridium and rhodium.
In 1808 Sir Humphry Davy, fresh from the electrolytic isolation of potassium and sodium, attempted to decompose alumina by heating it with potash in a platinum crucible and submitting the mixture to a current of electricity; in 1809, with a more powerful battery, he raised iron wire to a red heat in contact with alumina, and obtained distinct evidence of the production of an iron-aluminium alloy.
Contaminated as it was with potassium and with platinum from the crucible, the metal formed a grey powder and was far from pure; but in 1845 he improved his process and succeeded in producing metallic globules wherewith he examined its chief properties, and prepared several compounds hitherto unknown.
Again, the diazonium chlorides combine with platinic chloride to form difficultly soluble double platinum salts, such as (C 6 H 5 N 2 C1) 2 PtC1 4; similar gold salts, C 6 H,N 2 C1 AuC1 3, are known.
Whereas carbon renders isomerism possible in organic compounds, cobalt and platinum are the determining elements in inorganic chemistry, the phenomena being exhibited especially by complex ammoniacal derivatives.
The constitution of these inorganic isomers is still somewhat questionable; and in addition it seems that polymerism, metamerism and stereoisomerism play a part here, but the general feature is that cobalt and platinum act in them with high valency, probably exceeding four.
The most simple case is presented by the two platinum compounds PtC12(NH3)2, the platosemidiammine chloride of Peyrone, and the platosammine chloride of Jules Reiset, the first formed according to the equation PtC1 4 K 2 + 2NH 3 = PtCl 2 (NH 3) 2 + 2KC1, the second according to Pt(NH 3) 4 C1 2 =PtC1 2 (NH 3) 2 +2NH 3, these compounds differing in solubility, the one dissolving in 33, the other in 160 parts of boiling water.
Humboldt searched for them in the Urals on account of the similarity of the gold and platinum deposits to those of Brazil, and small diamonds were ultimately found (1829) in the gold washings of Bissersk, and later at Ekaterinburg and other spots in the Urals.
Gold (also platinum) is a not infrequent associate, but this may only mean that the sands in which the diamond is found have been searched because they were known to be auriferous; also that both gold and diamond are among the most durable of minerals and may have survived from ancient rocks of which other traces have been lost.
Thallous chloroplatinate, T1 2 PtC1 6, readily obtainable from thallous salt solutions by addition of platinum chloride, is a yellow precipitate soluble in no less than 15,600 parts of cold water.
Iron ores and lead are credited to several provinces, and platinum has been found in Esmeraldas, where emerald mines have been worked ever since the Spanish conquest.
The metals, which by combination with oxygen became oxides, were antimony, silver, arsenic, bismuth, cobalt, copper, tin, iron, manganese, mercury, molybdenum, nickel, gold, platinum, lead, tungsten and zinc; and the "simple earthy salifiable substances" were lime, baryta, magnesia, alumina and silica.
In The Case Of Water Or Other Liquids It Is Necessary To Employ A Platinum Wire Stretched Along The Tube As Heating Conductor.
This unit is taken as being 4.180 joules per gramme-degree-centigrade on the scale of the platinum thermometer, corrected to the absolute scale as explained in the article Thermometry, Which Has Been Shown To Be Practically Equivalent To The Hydrogen Scale.
For This Reason The Definition Of The Thermal Unit Will In The End Probably Be Referred To A Scale Of Temperature Defined In Terms Of A Standard Platinum Thermometer.
Edison in 1878 again attacked the problem of producing light by the incandescence of platinum.
It has long been known that air and other gases at the pressure of the atmosphere were very perfect insulators, but that when they were rarefied and contained in glass tubes with platinum electrodes sealed through the glass, electricity could be passed through them under sufficient electromotive force and produced a luminous appearance known as the electric glow discharge.
In the bottom of the vessel is placed some sulphuric acid, and a platinum wire attached to the suspended needle dips into this acid.
The opposite quadrants are connected together by thin platinum wires.
Water, the carbonates and sulphates, and probably phosphates, and the metals platinum, gold, silver, cadmium, tin and copper have a specific cohesion double that of mercury.
The idea that this film of bacteria oxidizes the alcohol beneath by merely condensing atmospheric oxygen in its interstices, after the manner of spongy platinum, has long been given up; but the explanation of the action as an incomplete combustion, depending on the peculiar respiration of these organisms - much as in the case of nitrifying and sulphur bacteria - is not clear, though the discovery that the acetic bacteria will not only oxidize alcohol to acetic acid, but further oxidize the latter to CO 2 and 01-1 2 supports the view that the alcohol is absorbed by the organism and employed as its respirable substance.
Cultures are made by transferring by means of a sterile platinum wire a little of the material containing the bacteria to the medium.
The Royal Society's Catalogue enumerates 171 papers by him on various chemical topics, but his name is best known for his experiments on platinum in a minute state of division and on the oxidation products of alcohol.
In 1822 he showed that when a mass of platinum black, supplied with alcohol by a wick is enclosed in a jar to which the air has limited access, acetic acid and water are produced; this experiment formed the basis of the Schiitzenbach Quick Vinegar Process.
A year later he noticed that spongy platinum in presence of oxygen can bring about the ignition of hydrogen, and utilized this fact to construct his "hydrogen lamp," the prototype of numerous devices for the self-ignition of coal-gas burners.
The electrodes consist of two cylinders of platinum (placed one inside the other) about 75 mm.
Each cylinder has a platinum wire fused to the upper circumference to connect with a clamp from which a wire leads to the proper pole of the battery.
Silver is widely diffused throughout nature, occurring in minute amount in sea-water, and in the mineral kingdom as the free metal, as an amalgam with mercury and as alloys with gold, platinum, copper and other metals.
Some schists, attributed to the Silurian, but possibly older, contain platinum; and associated with the limestones are beds of copper.
Bismuth, platinum, molybdenum and antimony are obtained in small quantities.
Copper, gold alloyed with platinum, iron ore, barytes, graphite and lead occur in small quantities in the state.
It may be prepared by passing hydrogen gas and bromine vapour through a tube containing a heated platinum spiral.
Platinum black, for instance, in which the metal is in a state of fine division, absorbs nearly all the light incident on it, while polished platinum reflects the greater part.
Platinum is said to have been discovered in Colombia in 1720, and has been exported regularly since the last years of the 18th century.
Iron ore, platinum, lead, quicksilver and cobalt have been obtained in the state in merchantable quantities, and there is some zinc ore in the Cascade Range.
On the continent of Europe platinum vessels have been for a long time almost universal, and they have been greatly improved by an internal lining of gold.
We also note the Faure and Kessler apparatus, which consists of a platinum pan, surmounted by a double-walled leaden hood, in such a manner that, while the hood is constantly cooled from the outside by water, the thin acid condensing on its inside is carried away without being allowed to flow back into the pan.
The majority of acid makers, however, prefer retorts made entirely of platinum, preferably provided by the Heraeus process with a dense, closely adherent coating of gold, including the top or "dome."
This furnace is also very well adapted for impure acids, unsuitable for platinum or platinum-gold stills on account of the crusts forming at the bottom of the retorts; and it is more and more coming into use both in Great Britain and on the Continent.
Condensation is a comparatively easy task in the case of platinum apparatus, but with glass or porcelain beakers or retorts it presents great difficulties.
Dobereiner discovered the combination of SO 2 and 0 into SO 3 by means of spongy platinum.
Winkler showed that this division was best obtained by soaking asbestos with a solution of platinum chloride and reducing the platinum to the metallic state, and he described later a specially active kind of "contact substance," prepared from platinum chloride at a low temperature.
On a board is stretched a uniform metallic wire a b, generally of platinum silver.
The temperature of the oil can best be ascertained by means of a platinum resistance thermometer.
Methane cannot be burnt in this way even when there is much hydrogen present, and several other methods have been proposed, such as mixing with air and aspirating over copper oxide heated to redness, or mixing with oxygen and burning in a platinum tube heated to redness, the carbon dioxide formed being estimated by absorption in potash.
If the eye was placed at the focus, no sensation of light was observed, although small pieces of charcoal or blackened platinum foil were immediately raised to incandescence, thus giving rise to visible rays.
Platinized platinum (platinum foil upon which a thin film of platinum had been deposited electrolytically) and charcoal were rendered incandescent, black paper and matches immediately inflamed, ordinary brown paper pierced and burned, while thin white blotting-paper, owing to its transparency to the invisible rays, was scarcely tinged.
It precipitates platinum, gold and silver from solutions of their salts, and also reduces mercuric, cupric and ferric salts.
Silver has been detected in certain galenas, and also platinum; copper has been found in various localities, as well as zinc, lead, nickel, antimony and manganese, but none of these metals has yet been discovered in sufficient quantities for profitable working.
These compounds are brought into solution by means of polysulphides of the alkali metals and the resultant liquor run into the cathode compartment of a bath, which is divided by diaphragms into a series of anode and cathode chambers; the anode divisions being closed and gas-tight, and containing carbon or platinum electrodes.
Instead of heating the tube, the gas may be ignited at the mouth of the tube and a cold surface of porcelain or platinum placed in the flame, when a black deposit is formed on the surface.
For high temperature work it is necessary to employ platinum, which would be an ideal standard for all purposes on account of its constancy and infusibility, did not the thermoelectric properties of different specimens differ considerably.
Dewar and Fleming, working at very low temperatures, were compelled to use the platinum thermometer, and expressed their results in terms of the platinum scale.
It works very well with platinum, iron and copper.
A more accurate verification of these relations, both at high and low extremes of temperature, has become possible of late years owing to the development of the theory and application of the platinum resistance thermometer.
Soluble salts of manganese, aluminium, zinc, copper, gold, platinum and bismuth have, when given by the mouth, little action beyond their local astringent or irritating effects; but when injected into a blood vessel they all exert much the same depressing effect upon the heart and nervous system.
They are intended for use at the extreme temperatures obtainable in steel furnaces, or for the melting of platinum before the oxy-hydrogen blowpipe.
The former may be used as a bed for melting platinum in the same way as lime or magnesia, without affecting the quality of the metal.
The metal possesses a strong affinity with gold, silver, platinum, and precious stones.
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Placed into this is a platinum electrode surrounded by a gas tube submerged in the solution, with hydrogen at 1 atm inside.
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In 1813 Wollaston proposed fine platinum wires, prepared by surrounding a platinum wire with a cylinder of silver, and drawing out the cylinder with its platinum axis into a fine wire.
In one form a drum, mounted on an axis and covered by a band of paper soaked in a solution of caustic potash, was turned under a spring the end of which was in contact through a platinum point with the paper.
This provision may not always be fulfilled, since by placing the zinc in electrical contact with a piece of platinum, likewise immersed in the sulphuric acid, we can generate a current of electricity through the solution and the metallic part of the circuit.
This electrical energy, however, is equivalent to the heat which has disappeared, for it has been shown experimentally that if it is converted into heat and added to the heat actually evolved, the total quantity of heat obtained is exactly equal to that produced by the direct dissolution of the zinc in the absence of platinum.
If, instead of using copper electrodes, we take plates of platinum, copper is still deposited on the cathode; but, instead of the anode dissolving, free sulphuric acid appears in the neighbouring solution, and oxygen gas is evolved at the surface of the platinum plate.
Thus, with a dilute solution of sulphuric acid and platinum electrodes, hydrogen gas is evolved at the cathode, while, as the result of a secondary action on the anode, sulphuric acid is there re-formed, and oxygen gas evolved.
Carlisle found that hydrogen and oxygen were evolved at the surfaces of gold and platinum wires connected with the terminals of a battery and dipped in water.
If the anode consist of platinum, cyanogen gas is evolved thereat from the anion Ag(CN) 2, and the platinum becomes covered with the insoluble silver cyanide, AgCN, which soon stops the current.
Thus the statement that the migration constant or transport number for a decinormal solution of copper sulphate is o 632 implies that of every gramme of copper sulphate lost by a solution containing originally one-tenth of a gramme equivalent per litre when a current is passed through it between platinum electrodes, o 632 gramme is taken from the cathode vessel and o 368 gramme from the anode vessel.
Platinum and palladium dissolved from the anode accumulate in the solution, and are removed at intervals of, say, a few months by chemical precipitation.
It acquired considerable application in platinum works, this metal being only fusible in the oxyhydrogen flame and the electric furnace; and also for the production of limelight, as in optical (magic) lanterns.
Chemically pure carbonate of potash is best prepared by igniting pure bicarbonate (see below) in iron or (better) in silver or platinum vessels, or else by calcining pure cream of tartar.
For small standard weights platinum (ÃŽâ€=21.45) and aluminium (ÃŽâ€=2.67) are used, and also an alloy of palladium (60%) and silver (40%) (ÃŽâ€=11.00).
The inner platinum ends DD of the wire may be sealed into the glass insulating tubes, but reliance should not be placed upon these sealings.
In addition, liquid-in-glass thermometers and platinum resistance thermometers require periodic checking of reference points.
Platinum package DVDs can include special features, such as guest greetings, honeymoon photos, and a slideshow of stills from the film.
Although many silver items are made with some platinum alloy, which guards against tarnishing, other items will have to be polished from time to time.
Base metal straps are made from silver, white gold, yellow gold or platinum.
Bracelets made from white gold and yellow gold are less expensive than those made with platinum.
Diamond earrings are usually set in white or yellow gold or platinum.
White gold is a gold alloy containing a percentage of nickel or platinum.
Silver is very popular as a choice for jewelry because of its relatively low cost when compared to other precious metals like gold and platinum.
Given its low cost, you will find a much larger range of jewelry items and designs in silver than in gold or platinum.
Well-polished silver has a sheen that is even more brilliant than that achieved by gold and platinum!
The Platinum Card offers exceptional spending power, payment flexibility, and monthly rewards.
Platinum Card - This card gives you the highest level of benefits that can be had with any debit card.
Incentives may include lower or waived fees, reduced interest rates, bonus rewards, upgrades to a platinum account, or even zero interest on balance transfers.
Similar to gold cards, platinum cards imply prestige and wealth.
Platinum is a precious metal, and is often used to manufacture jewelry.
In the jewelry world, platinum is considered to be more valuable than gold because of its resistance to wear and tarnishing.
As with anything, there are pros and cons to platinum.
The most obvious advantage to having a platinum card is the perks and benefits that you are eligible to receive.
Because platinum and gold cards are held in such high regard, many companies have jumped on the bandwagon by creating a platinum card of their own.
While this may be true, you should be wary of certain offers for platinum cards.
Applying for a platinum card is relatively simple.
All you need to do is visit the website of a platinum card provider and fill out the application as directed.
In some cases the benefits of platinum cards come with a high costs.
Platinum - This card is designed for frequent travelers.
The Chase Platinum Visa card offers a 0% introductory APR on all balance transfers for the first year, and also features a rewards program for purchases.
MasterCard Preferred Cardholders receive all the same benefits as the Platinum Plus Cardholders with the exception of a higher standard interest rate of 15.99% after the introductory period has ended.
American Express has a wide variety of platinum cards, each with a different set of benefits.
American Express also issues platinum cards as part of their partnership programs with several major retailers.
This card has a smaller annual fee, but it has a higher APR than the Capital One Platinum card.
As with the other HSBC Platinum accounts, you'll be able to take advantage of twelve months with no interest on balance transfers or purchase transactions.
Citi Platinum Select CITGO MasterCard - This card also features a MasterCard logo but has a lower variable interest rate of around 13%.
The Platinum Visa is the best card offered through Wescom CU.
The Platinum MasterCard features a points-based rewards program for purchases and can also be used to access cash at ATMs accepted MasterCard.
A second option, the BucksBack Platinum Edition Visa Card, offers a 0 percent APR for the first six billing cycles at the time of the account opening.
The Citi Platinum Select card is a good card for cardholders who want to transfer small balances, but be aware there is a balance transfer fee.
They are the Delta Reserve from American Express, Platinum Delta Sky Miles, and Gold Delta Sky Miles.
Eligible cards include Blue, Green, Optima, Platinum, Gold, Centurion and Small Business.
Different cards in this line include the American Express Corporate Card, the American Express Executive Corporate Card, the Corporate Platinum Card, the Corporate Meeting Card and the Corporate Defined Expense Program.
This program is different from what was offered with the original Platinum Plus Visa card from AAA.
Consider the Citi Dividend Platinum Select Visa Card for College Students.
The Citi Platinum Select AAdvantage World MasterCard offers travel rewards through American Airlines.
The Citi Dividend Platinum Select MasterCard offers no annual fee and a variable interest rate up to 20.99 percent.
The mtvU Platinum Select Visa Card for College Students rewards students with ThankYou Points.
The Citi Dividend Platinum Select card lets you earn 1 percent cash back on any purchase you make.
The Citi Dividend Platinum Select card does not carry an annual fee.
You can apply for the Citi Dividend Platinum Select MasterCard online through Citi's website.
The Citi Dividend Platinum Select Card for College Students is another option.
It's no wonder why Max Factor cosmetics are usually remembered and associated with the world of movie cosmetics and the platinum starlets of Hollywood.
Sturdy and durable, the frosted pink brush handles are a little different from the solid black and platinum styles that Sephora sells individually, and they work nicely with the plush pink faux leather case.
You can find the Platinum Version 20 online.
The COOLPIX S60 is available in a variety of luscious shades, including Espresso Black, Arctic White, Burgundy, Champagne Pink, Platinum Bronze and Crimson Red.
The lightweight digital camera also features a stylish metal exterior available in three hip colors--Platinum Silver, Midnight Black and British Green.
Many couples also consider titanium because it is often cheaper than other metals commonly used in rings, such as gold or platinum.
Titanium rings are heirloom quality to last a lifetime but often very affordable compared to gold or platinum rings.
While a simple gold or platinum band is always a popular choice, many engaged couples want a ring that stands out in elegance and tradition.
Popular choices include platinum, gold, and silver.
Platinum is considered more durable and longer lasting than gold and silver.
Find out why platinum costs more than white gold, although they are very similar in appearance.
Read up on how to buy a platinum wedding ring, and discover how to take care or your ring in our platinum wedding ring article.
What is the difference between white gold and platinum?
The album went on to go platinum several times over.
He followed that up with the platinum Willenium in 1999 and Born to Reign in 2002.
When Born to Reign failed to go platinum, Smith's label, Columbia, dropped him.
The album went platinum and earned her an MTV music video nomination.
Although the ring is traditionally designed to represent a couple's past, present, and future, this one-of-a-kind Edwardian ring with diamond details throughout the platinum band is said to represent mother, father, and son.
The album, released in July 2004, hit platinum and debuted at number one on the Billboard chart.
By the fall of that year, the album earned triple platinum status.
The album landed at number four on the charts and eventually earned triple platinum status.
His 2001 follow up album, Word of Mouf, was a huge success, staying at the top of the charts and achieving triple platinum status.
Ludacris' fourth album, The Red Light District, debuted at number one on the Billboard charts and was a double platinum album.
Many of Urban's singles, videos and albums have received certified gold, platinum, double platinum, triple platinum and quadruple platinum status.
Now dubbed a "Pop Princess," Moore's album was certified platinum and sold one million copies.
Where he got the funds for the platinum and five-carat diamond ring is unknown.
Adam Sandler hasn't won any Oscars, but the man is an actor, writer, producer, comedian and has two albums that have gone double platinum.
The CD went Platinum and was well received critically.
Set in double shank platinum (naturally…) - Seems that you need two bands (shanks) to hold 211 diamonds safely in place.
They have sold over 20 million units worldwide, with many of their commercial albums gaining platinum status.
Canidae Platinum is formulated for overweight and senior dogs that may need decreased calories with high nutrition.
Metallica's popularity continued to climb in 1988 with the release of … And Justice for All, a record that quickly went platinum and featured the band's first commercial hit single for the song One.
Metallica has gone platinum 15 times and is the most popular heavy metal album of all time.
Their follow up albums Away From the Sun, Another 700 Miles and Seventeen Days all went platinum and spawned the hits, Here Without you, Let Me Go and Behind Those Eyes.
Slipknot formed in the mid-1990s, but the band didn't break through to mainstream success until their debut album - supported by endless touring including a spot on Ozzfest - eventually went platinum in 2000.
In December of 2008, it received eight times platinum certification by the Recording Industry Association of America (RIAA), and the album remains the band's best-selling album.
Her jewelry debuted with an exquisite collection termed "Bijoux De Diamond," pieces designed from diamonds and platinum.
Chanel Jewelry is made from gold, platinum, gems, stones, and pearls.
The Cometes collection is composed of sparkling, celestial pieces created from materials such as rock crystal, sapphires, platinum, white gold, and Tahitian and Japanese pearls.
Although there are a variety of styles, Playboy necklaces all have in common the easily recognizable Playboy bunny, or rabbit head logo.Most necklaces are made from gold, white gold, silver, or platinum.
Hawaiian Jewelry Connection - In addition to gold fashion jewelry, this website offers platinum and silver Hawaiian jewelry.
Many lovely diamond pendants are sold on gold, platinum, or other precious metal chains that are 16 inches in length.
However, you can find settings in white gold as well as platinum and sterling silver if you find these metals more pleasing.
Made in France, each earring is carefully mounted on gold, platinum or sterling silver.
Everything if either gold-electroplated or plated with rhodium, a type of platinum.
This is a lovely stone that looks stunning set against the cool white of silver, white gold or platinum.
Platinum, gold, silver or copper were used in many moonstone designs.
Charms are manufactured from quality materials such as precious metals like platinum, gold or sterling silver or from low cost materials such as plastic or acrylic which are perfect for fashion jewelry.
One of these pieces, a Sri Lankan moonstone and Montana sapphire necklace set in platinum is on display at the Metropolitan Museum of Art in New York.
At the other end of the pricing spectrum are Tahitian chocolate pearls set in platinum or gold with diamond accents.
While the classic palm tree pendant is a simple tree in white gold, silver, or platinum and studded with diamonds along the fronds and trunk, there are many additional designs to choose from.
This ranges from precious metals such as gold or platinum, to silver, copper or brass.
Einhorn's all metal fang-shaped jewelry designs are made out of sterling silver, yellow gold, white gold, red gold and platinum.
Designs come in many materials - yellow gold, white gold, pewter, wood, platinum and sterling silver.
High quality pearls also make a lovely choice, however, these are more often combined with gold or platinum.
One formula for 18k white gold is 75% gold, 25% platinum.
For example platinum is usually worth more per ounce than gold.
A white gold blend containing 25% platinum will be worth more than 24k pure gold, because the platinum raises the value of the blend.
The platinum also makes a tougher and more durable gold.
Yellow gold, white gold, platinum, and sterling silver are commonly used in designs.
Most black pearl studs are set in gold of varying quality, although platinum, sterling silver and other metals are also popular.
Many of the Celtic rings offer you the choice of several precious metals, such as white, yellow, or rose gold, platinum, or sterling silver.
It is also more affordable than gold or platinum jewelry.
Sterling silver options are more affordable than gold or platinum.
Notch Platinum Edition This single-breasted, non-vented coat has a one-button-notch, satin lapels, and flap pockets.
Shawl Platinum Edition This is a one-button shawl coat, as the name suggests.
Since you're in the business of custom designing clothes for each client, can you explain the differences between your collections (Black Label, Platinum, Signature)?
Suits in our Platinum Collection are handmade in our workshop near Shanghai.
Our Black Label Collection features the same styling, fit and details as our Platinum Collection, but much of the sewing is done using state-of-the-art equipment instead of being performed by hand.
Snowboard Magazine rated the Airblaster ninja suit as its 2008-09 Platinum Pick.
The cost is $415.00 and they are available in horn with java polar, noir with platinum polar, olive tortoise with midnight express, and tungsten with chrome sapphire.
Goggles Direct has Rose Platinum lenses available with black, silver, pink, and graphite frames.
For example, polarized green and blue mirrors are used in high glare and bright conditions, while polarized platinum, gray and brown mirrors are used in only bright conditions.
There are several variations available such as Black Frame with Polarized Grey Lens, Brown Frame with Polarized Brown Lens, Slate Citron Frame with Yellow Mirror Lens and Cement Yellow Frame with Platinum Lens.
Adult platinum passes cost $160 each or $150 when purchased in a four pack, while platinum passes for children and senior citizens are $90 each.
A platinum pass gets you admission and parking to Worlds of Fun, Oceans of Fun and all Cedar Fair owned parks across the country.
The gold dye sells for a bout 6 to 9 platinum pieces at the trade markets.
Soon, Coral Pink (or Noble Pink) and a Platinum DS Lite released.
Several sequels have been spawned over the years, like Rollercoaster Tycoon 3 Platinum depicted above.
Challenge yourself to do even better and unlock the Platinum medal level!
The Platinum Series ships collectible wines rated 90 points or higher from agencies like the International Wine Cellar and Wine Spectator.
Sunpentown WC-06 Thermoelectric wine cooler - This super-sleek wine chiller comes in a platinum finish and holds up to six bottles of wine.
If you're looking for collectable premium wines that have been rated by wine experts at 90 points or above, then the Platinum Series wine club just might be for you.
Like the other Kitten Dolls, Mama Kitten has rooted hair, sleep eyes that open and close, and platinum blonde hair.
More recently, we have seen the emergence of the Platinum LG Chocolate phone, also known as the KE800.
Similarly, the Katana DLX by Sanyo comes in Pink Satin, Champagne, and Platinum Ice.
Platinum includes everything in the Deluxe version, plus the ability to add world events to your ancestor's life timeline.
Scarlett's platinum blonde curls are reminiscent of old-style Hollywood glamour, a style that Christina Aguilera has been seen with recently, too.
Blonde, platinum, and red are also seen in the world of emo styles.
This is still the case, which is why it can be considered ironic that natural redheads like Nicole Kidman and Lindsey Lohan insist on going platinum blonde.
Blondes should go platinum, reds should go vivid, and brunettes should seek the deepest, dreamiest shade without any break in their color pattern.
Color panels can be any shade-from platinum to purple-and are most often found on a black base.
For this trend, hair is colored dark on the bottom and lightened to a platinum tone on the top.
Natural blondes can go platinum, and red heads can add light blonde chunks of color for a look that is trendy and stylish.
The sleek and sophisticated style is best for women with a solid, striking hair color, such as platinum or dark hair.
Longing for that signature Gwen Stefani platinum blonde hair look?
If you prefer fair hair, a bright honey blonde is perfect, or you can go for a more striking look with a bold platinum hair color.
When you pair platinum locks with a streak of dark chocolate through the bang, you're sure to turn heads.
Platinum blonde and chic brunette hues work hand in hand with the simple lines of a bob hairstyle.
A darker color will reflect shine, while a platinum hue will always be striking.
Who hasn't dreamed of delving into the world of platinum blondes at least once?
While most people who color their hair are used to maintenance, not everyone making the switch to a platinum color are prepared for their new reality.
Platinum shades top the chart for high maintenance color, so make sure you can afford the upkeep both financially and the time spent in your colorist's chair.
If you dislike visiting your stylist every couple of months for just a few hair highlights, then platinum blonde may not be for you.
You can expect to be back in the chair at least once a month to touch up any outgrowth, and plan on investing in a whitening shampoo as well to maintain the brightness of you platinum tresses at home.
Not every blonde is created equal, so make sure your colorist has the skills to lift your base to the correct level and fix the tone to achieve the true platinum locks you crave.
This expertise may vary considerably from salon to salon, so plan wisely and book a few consultations to find your ideal colorist who can work with your natural color and bring it to all its platinum glory.
Depending on your natural hair color, you may have to go through several steps to achieve full-on platinum locks.
While many people who opt for platinum blondes keep their color pure and uniform, others opt for contrast by adding lowlights in varied colors or tones.
Regardless of how close your natural color is to platinum, you'll want to visit your colorist for the permanent color switch.
While platinum locks are a tempting and sexy look, the color commitment may be too much for your lifestyle.
Platinum blonde hair isn't for everyone, but for those that are ready for the switch, this undeniably sassy hair color can uplift your spirits as you watch the heads turn.
While Lady Gaga's styles change rapidly and regularly, her vibrant platinum hair color remains constant.
Because Lady Gaga has natural brunette hair, getting her bright platinum blonde takes a double color process and includes pearly pink subtle hair highlights to enhance her hair's shine and gloss for an ultra healthy look.
Her platinum blonde color is not an option for home coloring hair dye kits; instead, professional services are necessary for the proper color without damaging the hair.
Rhianna's graduated bob has featured different styling techniques, from straight to curly, various highlighting effects, including platinum blonde on jet black, and also with or without bangs.
A model of simplicity, the Platinum Beach and Pool Lounger from Copa is a good, all-purpose beach chair.
The platinum model comes with a 360 degree tilting head feature that allows you to reach corners and underneath furniture easily.
The Platinum Pilot, which weighs slightly more than a gallon of milk, can pull out pet hair, dirt, and grime that is embedded deeply into the fibers of a carpet.
The votive holder has hand set faux jewels and platinum accents.
If you want to dress to impress without opting for a flashy metallic threads, you can keep your style sophisticated by wearing dark and moody platinum and black hues.
Nothing screams holiday more than platinum and black, so consider the darker and earthier shades of the color wheel for an interesting spin on the gilded classics.
Does she seem to prefer gold,silver, or platinum?
Most engagement rings are platinum, yellow gold, or white gold.
Platinum is the strongest metal and is considered rarer than gold.
Platinum is also significantly more expensive than gold.
Platinum engagement rings are the most expensive, but you won't be sacrificing quality or style if you stick to silver or white or yellow gold.
If she wears a lot of silver jewelry, she may be more comfortable in white gold or platinum rather than yellow gold.
Different types of engagement rings and settings including Antique Engagement Rings, Unique Engagement Rings and engagement ring designs in Yellow Gold, White Gold, and Platinum.
Britney Spears' engagement ring is a platinum band with a single, round, classic set diamond.
Occasionally, a Tacori can be set in 18k white gold, but it is not recommended because the white luster is inferior to platinum, and the rhodium coating will eventually wear off, giving the piece a yellowish cast.
This is a frequent concern for white gold engagement rings, and platinum is recommended to avoid it.
Platinum is also more durable and suited to everyday wear.
For exquisite designs, Tacori crafts engagement rings in two-tone combinations of yellow gold and platinum, often using the gold as an embellishment or intricate accent.
Tacori platinum rings use an alloy of 95% platinum and only 5% iridium for exceptional strength and brilliance.
You should also be familiar with engagement ring settings and how different metals such as platinum, gold, white gold, silver, and titanium compare in price, quality, strength, availability, and necessary care.
If so, platinum or titanium may be the best choices for you.
In fact, most engagement rings use a bit of platinum - often as the setting to properly secure the stone(s) in place.
Unlike silver, platinum does not need periodic recoating or polishing to keep its brilliant appearance.
For example, yellow gold may be used to form arches, hearts, or even words in the setting of a platinum or white gold ring.
Platinum and titanium are the most expensive metals, while silver, sterling silver, and yellow gold are far more common and less expensive.
Most jewelers carry a limited supply of dual-tone engagement rings using platinum and yellow gold, which is by far the most common pairing.
Platinum, white gold, and titanium engagement rings are also available.
Black gems make stunning engagement rings, particularly when set in white metals such as white gold, silver, platinum, or titanium.
Platinum and white gold tend to be the most popular choices, but a wide selection of yellow gold is also available, as well as multi-tone rings combining different metals.
Titanium and the rarer palladium platinum blend are also available in a limited number of designs.
To preserve the stone's color, most colored diamond rings are set in white gold or platinum rather than yellow gold, which may cast a yellowish hue onto the stone.
Platinum wedding rings are rapidly becoming more popular than the traditional gold bands for many reasons.
Platinum is distinctive, durable, and sophisticated, and a wide range of different wedding ring styles are available for both men and women.
When gold rings have been traditional for generations, why choose platinum?
Platinum is far more rare than gold, and is principally mined in Russia and South Africa, whereas high-quality gold is found in many more locations.
This rarity makes platinum an alluring choice for rings that symbolize the rare relationship between two people deeply in love.
Many couples prefer distinctive rings, and platinum is the leading choice.
In addition to its exclusivity, platinum is more durable than gold (yellow or white) or other traditional metals, making it a wise choice for anyone with an active lifestyle.
Because of platinum's silvery-white luster, it is the ideal choice to match anyone's personality as well as their wardrobe.
This gives the couple great flexibility in designing unique platinum wedding bands with just the right accents to suit their personalities and relationship.
Most jewelers will stock a limited supply of platinum designs, though designer stores are more likely to have a larger selection.
When choosing platinum rings, be sure to find a reputable jeweler who is experienced with the metal and will be able to provide any necessary repairs, upgrades, or other maintenance.
Because of the metal's rarity and exclusivity, platinum wedding rings may cost twice as much as similar gold rings.
As the popularity of platinum grows, it can be found in many other types of jewelry.
Most engagement rings already use platinum settings regardless of the band's metal because platinum's durability offers a more secure hold.
Because of its durability, versatility, and natural elegance, platinum is a popular choice for today's brides and grooms.
Platinum wedding rings may be more expensive than traditional metals, but that expense is an investment in a relationship that will last a lifetime.
Most Tiffany jewelry pieces are available in a range of metals, including platinum, white gold, titanium, and sterling silver.
All of this store's jewelry is of the highest quality, using only certified diamonds and superior metals, including platinum, 18k gold, white gold, and sterling silver.
Engagement rings may be set in platinum, yellow gold, or white gold, and many designs are planned to match the simple wedding bands the designer offers.
Similarly, the ring's metal should be chosen to avoid contrasting - white gold and platinum are the metals of choice because they are strong enough to protect a valuable stone but their neutrality will not clash with the stone's color.
For example, if the upper limit on cost is just $500, a flawless full carat ring with a platinum band is out of the question.
Settings may be slightly more unusual, including prongs, channels, or bezels, or simple settings may be made of platinum.
Metals are generally higher quality, typically 18k gold, platinum, or multiple metals.
Multi-tone bands with a tungsten core surrounded by platinum, titanium, or gold.
Tungsten rings are typically more expensive than their gold or platinum counterparts; a plain tungsten band can cost up to $800 or more, and more elaborate designs can easily cost over $1,000.
White gold and platinum are the most popular, though yellow gold can be found in right hand designs as well.
The most popular option is to choose white gold or platinum to provide the best contrast to the dark pearl.
Besides incorporating gold, platinum and diamonds, the best way to give your balck pearl ring an extra boost is to surround it with other pearls in a variety of colors.
Both reproductions of popular designer pieces as well as exclusive designs are offered, and the artificial gems are set into precious metals including 14 and 18 karat gold as well as platinum to emphasize their high quality.
The ring is a five carat oval-shaped diamond set in platinum and rose gold with an intricate pave setting.
Silver is less expensive than white gold, white gold is less expensive than platinum, as is titanium.
Multi-tone designs with yellow gold bezels set into white gold or platinum bands for contrast.
Rarer metals such as platinum or titanium are generally more expensive, and unusual settings or arrangements may also cost more than plainer variations.
While gold and platinum are the top choices, opting for rose gold, titanium, or multi-tone engagement rings adds more flair without distracting from the exceptional gem.
Choose a white metal such as white gold or platinum that will not contrast as harshly with the stone's edges, blurring where the stone and setting meet.
Choosing white gold or silver instead of platinum, or choosing a lower karat value of gold.
When paired with a stronger metal such as platinum, however, they do not significantly impair the ring's strength, and their uniqueness can be greatly valued.
Another option for silver Celtic engagement rings is to find a two tone or multi-tone design that incorporates silver along with other contrasting metals, such as yellow gold, rose gold, or the brighter white of platinum.
Alternating diamond shapes, like the ones in this Princess & Round Diamond Platinum band, add texture for unique patterns.
Beaudry designer rings are typically fashioned in platinum, Michael Beaudry's preferred medium.
Some multi-tone rings are available, however, frequently combining a platinum base with yellow gold accents, particularly in the filigree edging.
White gold or platinum engagement rings are preferred because their monochrome hues allow the diamond to stand out better.
Only the best precious metals, including palladium, platinum, and supremely rich 19 karat yellow or white gold.
The gems are primarily colorless and near-colorless shades, though subtle variations to the chemical gases can lead to champagne diamonds and other rare hues such as mocha and platinum that are highly sought after for rare jewelry.
Different metals, including yellow gold, white gold, and platinum to match existing rings or create two tone designs.
While most designs are crafted from platinum, both yellow and white gold are also available.
The choice of metal can help create a unique solitaire design, and princess stones are frequently set in platinum or white gold to enhance their sleek, modern look, though yellow gold is also popular.
This means that golds will wear more quickly than metals such as tungsten or platinum.
Many retailers offer alternative ring designs for couples interested in something more unique than the traditional gold or platinum wedding band.
Use of the richest metals, including platinum and 18 karat yellow gold.
Pave set platinum wedding bands are a stylish, elegant design for diamond wedding rings, and are rapidly becoming one of the most sought after styles for couples to express their matrimony.
Platinum is a much desired precious metal for wedding bands for several reasons.
Unlike white gold or silver, platinum does not tarnish easily, and its neutrality matches many engagement rings and anniversary rings for coordinated appeal.
Because many engagement ring designs are increasingly elaborate, similarly elaborate pave set platinum wedding bands are beautifully coordinated and luxurious pieces to compliment that initial style.
Pave set platinum wedding bands are sophisticated and luxurious whether they are worn alone or paired with a coordinating engagement ring.
A platinum princess cut diamond ring is an exquisite piece of jewelry, and as platinum grows in popularity, there are hundreds of styles to choose from for truly distinctive rings.
Both platinum and princess cut diamonds are sleek, elegant choices for stunning rings.
The brilliant brightness of platinum - generally brighter than white gold, silver, or other white metals - paired with the distinctive princess diamond cut creates a bold yet simplistic design.
The sharp corners of the princess diamond shape are comparable to the sharpness of platinum's color, and the bright white metal offers a startling contrast to the deeply sparkling facets of a princess cut.
There are only a few styles of rings that do not typically use platinum metal paired with princess gems.
At the same time, however, individuals can purchase other ring designs to use as promise rings or right hand rings if they truly want a platinum princess cut diamond ring to serve those purposes.
With so many different ring styles available, it is meaningless to point out only a few samples of platinum rings sparkling with princess cut diamonds.
Most major jewelers, including online jewelry stores, designers, and artisans offer platinum rings with a range of diamond shapes, including princess cuts.
If the look of a platinum princess diamond ring is desirable but the price is not, there are several alternatives that can help make these rings less expensive.
A platinum princess cut diamond ring is a stunning piece of jewelry perfect for any occasion, relationship, and style.
Solitaires are available in yellow and white gold and a limited selection of platinum and two tone styles.
The 18 diamond wedding band, which costs $9,250, is a platinum marquise cut diamond eternity band.
The 18 diamonds have a total weight of 6 carats and are individually set in handmade platinum v-tip prong mountings.
The 21 diamond ring also totals six carats and is set in the same elegant, handmade platinum v-tip prong mountings.
Yellow sapphires look spectacular set in either platinum or yellow or white gold.
Platinum, yellow sapphire and diamonds make this ring truly special.
Two trillion cut diamonds flank this magnificent round 1.25 carat sparkling yellow sapphire which is set in an elegant platinum band.
A gorgeous octagon shaped yellow sapphire, flanked by two octagon diamonds are set in a beautiful platinum band.
An Art Deco design yellow sapphire engagement ring with a delicately designed platinum band and exquisite side diamonds.
These beautiful gemstones lavishly set in platinum or gold are often cut in the old European or Asscher style.
A magnificent art deco engagement ring with a fancy yellow sapphire, old European cut diamonds, and elegantly designed platinum band.
The platinum band is elegantly detailed with diamonds near the crown.
For couples that prefer the look of dazzling diamonds set in rich platinum or white gold, the selections of style and design are strikingly beautiful.
Another beautiful example of a diamond and platinum bridal set is a spectacular princess cut diamond with four tapered baguettes.
Each delicate and dazzling coupling of diamonds with platinum or gold creates a ring that symbolizes a future promise of love and life together.
The classic diamond engagement ring set in expensive gold or platinum can put a serious dent in a couple's budget, but choosing a nontraditional style of ring can be a lovely, meaningful gesture for a much lower price.
Yellow gold's price doesn't vary greatly from that of white gold, but it is significantly less than platinum.
That's not to say that cool toned girls should never wear it, but they usually look best in white gold, platinum, and silver.
That was a shift from the previous decades, when white gold and platinum bands prevailed.
It was just covered in platinum to look white.
She may have a deep-rooted personal preference when it comes to something as significant as bridal jewelry, or she may just like yellow gold, white gold, and platinum and want the fashion world to assist in the decision.
All stones are emerald cut and the band is available in white gold, yellow gold, or platinum.
You can choose from white or yellow gold or platinum.
Not only can you choose between all the colors of diamonds available, but you can also choose white gold, yellow gold, rose gold, and platinum to add even more beauty and distinction to the ring.
Shipping and returns are free making for hassle-free shopping. iWeddingBand offers many styles in metals such as gold, platinum, titanium, tungsten, palladium, and cobalt.
While ornate rings can be eye-catching, they also tend to be more expensive than simple gold or platinum bands.
Engagement rings are set in materials such as gold, platinum and palladium and are all made in the USA.
The company has an extensive engagement ring collection that is filled with options such as classic solitaires, three stone designs, split band, twisted band and halo designs set in your choice of white, yellow or rose gold or platinum.
Platinum - The most expensive metal used to make jewelry.
Platinum wedding rings are bright white and look fantastic in classic and contemporary designs.
Palladium has many of the positive qualities of platinum but is less expensive and easier to work with.
Silver is a practical metal for highly detailed rings because it is more easily malleable than white gold or platinum, which can permit more delicate designs.
Many jewelers offer a range of Celtic wedding ring sets couples can choose from, but finding silver bands can be a greater challenge - white gold, titanium, and platinum are more popular options for wedding bands.
A wedding ring that might once only be found in yellow gold, can now be replicated in white gold, platinum, palladium, silver or perhaps in a metal such as stainless steel or titanium.
Platinum is the most expensive precious metal, where as some lower karat golds are much less costly.
Gold engagement rings are the traditional choice, although platinum, palladium, silver and more unusual metals such as titanium also provide an excellent option.
White gold or platinum for instance, provides a cool contrast to the warmth of the pink sapphire and can look absolutely stunning.
A beautiful platinum and perfect diamond ring may be a dream, but new furniture or other essentials might be a more practical consideration.
Sterling silver is less costly than gold or platinum therefore a cubic zirconia set in silver can be very competitively priced.