Amalgam Sentence Examples
Sodium amalgam reduces it to isobutyric acid.
The distillate is freed from vanadium by digestion with sodium amalgam.
The cell has the electromotive force above stated if the amalgam of cadmium has from 6 to 13 parts of mercury to I of cadmium.
The cushions were greased and the amalgam in a state of powder spread over them.
Depicting feudalism in the vivid colours of an age at war with feudal institutions, breathing into antique histories the breath of actual life, embracing the romance of Italy and Spain, the mysteries of German legend, the fictions of poetic fancy and the facts of daily life, humours of the moment and abstractions of philosophical speculation, in one homogeneous amalgam instinct with intense vitality, this extraordinary birth of time, with Shakespeare for the master of all ages, left a monument of the Re- naissance unrivalled for pure creative power by any other product of that epoch.Advertisement
When the rock has been separated from the amalgam by a washing operation, the quicksilver is recovered by distillation in an iron retort, and the remaining crude retortsilver melted into bars and shipped to a refinery, which removes the impurities, the leading one of which is copper.
Similar plates are often used to catch any particles of gold that may be thrown back, while the main operation is so conducted that the bulk of the gold may be reduced to the state of amalgam by bringing the two metals into intimate contact under the stamp head, and remain in the battery.
Of the numerous remedies proposed the most efficacious is perhaps sodium amalgam.
The amalgam is first pressed in wetted canvas or buckskin in order to remove excess of mercury.
Tin amalgam is used for "silvering" mirrors, gold and silver amalgam in gilding and silvering, cadmium and copper amalgam in dentistry, and an amalgam of zinc and tin for the rubbers of electrical machines; the zinc plates of electric batteries are amalgamated in order to reduce polarization.Advertisement
To 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.
Melsens reconverted this derivative into the original acetic acid by reduction with sodium amalgam.
The rubber was smeared with amalgam.
The unification of the peoples of antiquity in the Roman Empire, and the resultant amalgam of religions, gave a powerful impetus to the custom.
When this percentage has been reached, the cell is rocked to the other side, so that the amalgam flows into one of the outer compartments where the sodium is converted by water into sodium hydrate.Advertisement
An alloy was formed of two parts silver, one-third copper and one-sixth lead; to this mixture, while fluid in the crucible, powdered sulphur in excess was added; and the brittle amalgam, when cold, was finely pounded, and sealed up in large quills for future use.
The powdered amalgam was then shaken out of the quills on to the plate, so as to completely cover all the engraved pattern.
The plate was now carefully heated over charcoal fire, fresh amalgam being added, as the powder fused, upon any defective places.
Canton first suggested the use of an amalgam of mercury and tin for use with glass cylinder electrical machines to improve their action.
In this way he obtained an amalgam, from which on distilling off the mercury the barium was obtained as a silver white residue.Advertisement
Bunsen in 1854 electrolysed a thick paste of barium chloride and dilute hydrochloric acid in the presence of mercury, at 10o C., obtaining a barium amalgam, from which the mercury was separated by a process of distillation.
Guntz (Comptes rendus, 1901, 133, p. 872) electrolyses a saturated solution of barium chloride using a mercury cathode and obtains a 3% barium amalgam; this amalgam is transferred to an iron boat in a wide porcelain tube and the tube slowly heated electrically, a good yield of pure barium being obtained at about looo C. The metal when freshly cut possesses a silver white lustre, is a little harder than lead, and is extremely easily oxidized on exposure; it is soluble in liquid ammonia, and readily attacks both water and alcohol.
Maquenne has also obtained it by distilling a mixture of barium amalgam and carbon in a stream of hydrogen.
Barium nitride, Ba 3 N 2, is obtained as a brownish mass by passing nitrogen over heated barium amalgam.
It is reduced by sodium amalgam to benzhydrol or diphenyl carbinol C 6 H 5 [[Choh C 6 H]] 5; a stronger reducing agent, such as hydriodic acid in the presence of amorphous phosphorus converts it into diphenylmethane (C6H5)2.Advertisement
Reduction by sodium amalgam converts it into isopropyl alcohol; oxidation by chromic acid gives carbon dioxide and acetic acid.
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.
Amalgamation is based on the property of quicksilver to extract the silver from finely-pulverized ore and collect it in the form of an amalgam.
When the charge has been worked, the contents of the pan are discharged into a settler, in which the amalgam is separated from the sands.
The amalgam is dipped out from the bowl into a canvas bag (the strainer), to separate the excess of the quicksilver from the pasty amalgam, which is then retorted and melted.
This solution and precipitation is continuous, and the metal formed unites with the mercury to form a semi-fluid amalgam.
The amalgam is pressed in linen bags to eliminate a quantity of relatively silver-free liquid mercury (which is utilized as such in subsequent operations), and the remaining solid amalgam is subjected to distillation from iron retorts.
But before such an amalgam of paganism and Christianity could be propounded, it is evident that Christianity must have been for some little time before the world, and that the system cannot possibly be traced back to Simon Magus.
Wurtz); by boiling a-chlorpropionic acid with caustic alkalis, or with silver oxide and water; by the reduction of pyruvic acid with sodium amalgam; or from acetaldehyde by the cyanhydrin reaction (J.
Quinite (cyclo-hexanediol-i 4) is prepared by reducing the corresponding ketone with sodium amalgam, cis-, and trans-modifications being obtained which may be separated by their acetyl derivatives.
Merling (Ann., 1894, 278, p. 28) by reducing resorcin in hot alcoholic solution with sodium amalgam.
The 2 acid is formed on the reduction of benzoic acid with sodium amalgam.
The A 2 acid is formed along with the A 4 acid by reducing phthalic acid with sodium amalgam in hot solutions.
The 2 acid exists in cis- and trans- forms; these are produced simultaneously in the reduction of A or A 1.5 dihydroterephthalic acids by sodium amalgam.
The 2' acid is formed when phthalic acid is reduced in the cold by sodium amalgam or by heating the A 2 ' 4 and A 3 " acids with caustic soda.
The A 1.5 acid is obtained by boiling the cis- and trans-A 2.5 acids with water, which are obtained on reducing terephthalic acid with sodium amalgam in faintly alkaline solution.
When reduced in alcoholic solution by means of sodium amalgam it yields methyl granatoline, 08H130H NCH3; this substance, on oxidation with cold potassium permanganate, is converted into granatoline, C 8 H, 5 NO, which on distillation over zinc dust yields pyridine.
Sodium amalgam reduces it to acenaphthene; chromic acid oxidizes it to naphthalic acid.
The analysis of data herein represents an amalgam of data sources.
Some us choose our regional roots, others our religious roots, others create an amalgam by merging cultures.
The Scheme must not become an indistinct amalgam of action and as a result each diversity area will be clearly identifiable within the Scheme.
Dentists have used amalgam to fill cavities since the 1800s.
I came back to the inn, asked for some large empty bottles, and made the amalgam.
The town itself was a strange amalgam of styles.
The heritage Criteria of nations in Bloom judging is a complex amalgam of built, natural, cultural and social dimensions of a community.
A curious amalgam of images crystallized on a translucent screen.
A bizarre amalgam of modernist esthetics and Gothic might, the cathedral is still unfinished, with the completion date rumored to be 2020.
Here's Health Magazine carried out a campaign on the adverse effects of mercury amalgam some years ago.
After some hours place the ball of amalgam in a piece of strong new calico and squeeze out any surplus mercury.
An amalgam of mysticism, psychotherapy and pure science fiction, the content invited the derision which was inevitably forthcoming.
Over 90% of the mercury stored in human tissue is from amalgam fillings.
Many people have metals in the mouth, including dental amalgam fillings, which contain 50% mercury.
He stands squarely in a tradition in which dishonesty and fanaticism merge, in an amalgam which is often not easily separable from insanity.
It is reduced by sodium amalgam to glycouril C 4 H 6 N 4 O 2, whilst with hydriodic acid it yields urea and hydantoin C 3 H 4 N 2 O 2.
The amalgam is cleaned out periodically - fortnightly or monthly - and after filtering through linen bags to remove the excess of mercury, it is transferred to retorts for distillation (see below).
Soc., 1891, 59, p. 79 8); by the action of trimethylene bromide on disodio-propane tetracarboxylic ester; and by the reduction of isophthalic acid with sodium amalgam, the tetrahydro acids first formed being converted into hydrobromides and further reduced (A.
If the pain is due to tooth decay, the dentist will remove the decayed area and restore the tooth with a filling of silver amalgam or composite resin.
To treat most cases of tooth decay in older children, the dentist removes all decayed tooth structure, shapes the sides of the cavity, and fills the cavity with an appropriate material, such as silver amalgam or composite resin.
Sodium amalgam or zinc and hydrochloric acid reduce it to lactic acid, whilst hydriodic acid gives propionic acid.
The tertiary glycols are known as pinacones and are formed on the reduction of ketones with sodium amalgam.
The measure was an amalgam of Cavours scheme for a free church in a free state, of Ricasolis Free Church Bill, rejected by parliament four years previously, and of the proposals presented to Pius IX.
By reducing terephthalic acid with sodium amalgam, care being taken to neutralize the caustic soda simultaneously formed by passing in carbon dioxide, A" dihydroterephthalic acid is obtained; this results from the splitting of a Para-linkage.
On reduction by sodium amalgam in glacial acetic acid solution they yield primary amines.
The cyanhydrin is hydrolysable to an acid, the lactone of which may be reduced by sodium amalgam to a glucoheptose, a non-fermentable sugar containing seven carbon atoms. By repeating the process a non-fermentable gluco-octose and a fermentable glucononose may be prepared.
Ruff (Ber., 18 9 8, 3 1, p. 457) from nitro-di-isobutyl by reducing it to the corresponding hydroxylamino compound with aluminium amalgam and oxidizing this with chromic acid mixture.
Stannic Chloride, SnC1 4, named by Andreas Libavius in 1605 Spiritus argenti vivi sublimate from its preparation by distilling tin or its amalgam with corrosive sublimate, and afterwards termed Spiritus fumans Libavii, is obtained by passing dry chlorine over granulated tin contained in a retort; the tetrachloride distils over as a heavy liquid, from which the excess of chlorine is easily removed by shaking with a small quantity of tin filings and re-distilling.
Stannic sulphide, SnS 2, is obtained by heating a mixture of tin (or, better, tin amalgam), sulphur and sal-ammoniac in proper proportions in the beautiful form of aurum musivum (mosaic gold) - a solid consisting of golden yellow, metallic lustrous scales, and used chiefly as a yellow "bronze" for plaster-of-Paris statuettes, &c. The yellow precipitate of stannic sulphide obtained by adding sulphuretted hydrogen to a stannic solution readily dissolves in solutions of the alkaline sulphides to form thiostannates of the formula M 2 SnS 31 the free acid, H2SnS3, may be obtained as an almost black powder by drying the yellow precipitate formed when hydrochloric acid is added to a solution of a thiostannate.
The principle of applying metallic films to glass seems to have been known to the Romans and even to the Egyptians, and is mentioned by Alexander Neckam in the 12th century, but it would appear that it was not until the 16th century that the process of " silvering " mirrors by the use of an amalgam of tin and mercury had been perfected.
Sodium amalgam converts it into formic acid; whilst with alcohol it yields the normal carbonic ester.
By the action of sodium amalgam on an alcoholic solution of anthracene, an anthracene dihydride, C14H12, is obtained, whilst by the use of stronger reducing agents, such as hydriodic acid and amorphous phosphorus, hydrides of composition C14H16 and C14H24 are produced.
Wallach, Ber., 1881, 14, P. 421); by the action of reducing agents on nitroparaffins; by the action of zinc and hydrochloric acid on aldehyde ammonias (German Patent 73,812); by the reduction of the phenylhydrazones and oximes of aldehydes and ketones with sodium amalgam in the presence of alcohol and sodium acetate (J.
By electrolysing an aqueous solution of the chloride with a mercury cathode, a liquid and a solid amalgam, SrHgn, are obtained; the latter on heating gives a mixture of Sr 2 Hg 5 and SrHg 5, and on distillation an amalgam passes over, and not the metal.
The hydride, SrH 2, was obtained by Guntz on heating strontium amalgam in a current of hydrogen.
A more delicate method consists in adding a very little anthraquinone and sodium amalgam; absolute alcohol gives a green coloration, but in the presence of minute traces of water a red coloration appears.
A native gold amalgam is found as a rarity in California, and bismuth from South America is sometimes rich in gold.
With 10% of gold present the amalgam is fluid, and with 12.5% pasty, while with 13% it consists of yellowish-white crystals.
Horizontal cylindrical retorts, holding from 200 to 1200 tb of amalgam, are used in the larger Californian mills, pot retorts being used in the smaller mills.
By heating with sodium amalgam and separating with hydrochloric acid, the dichloride, TaC1 2.2H 2 O, is obtained as emerald green hexagonal crystals.
Davy, inspired by his successful isolation of the metals sodium and potassium by the electrolysis of their hydrates, attempted to decompose a mixture of lime and mercuric oxide by the electric current; an amalgam of calcium was obtained, but the separation of the mercury was so difficult that even Davy himself was not sure as to whether he had obtained pure metallic calcium.
Henri Moissan obtained the metal of 99% purity by electrolysing calcium iodide at a low red heat, using a nickel cathode and a graphite anode; he also showed that a more convenient process consisted in heating the iodide with an excess of sodium, forming an amalgam of the product, and removing the sodium by means of absolute alcohol (which has but little action on calcium), and the mercury by distillation.
By the addition of sodium amalgam to a concentrated solution of ammonium chloride, the so-called ammonium amalgam is obtained as a spongy mass which floats on the surface of the liquid; it decomposes readily at ordinary temperatures into ammonia and hydrogen; it does not reduce silver and gold salts, a behaviour which distinguishes it from the amalgams of the alkali metals, and for this reason it is regarded by some chemists as being merely mercury inflated by gaseous ammonia and hydrogen.
The metal in mass is not affected by hot or cold water, the foil is very slowly oxidized, while the amalgam decomposes rapidly.
Sodium amalgam reduces them to secondary alcohols; phosphorus pentachloride replaces the carbonyl oxygen by chlorine, forming the ketone chlorides.
It is reduced by sodium amalgam (in alcoholic solution) to methylhydrazine, CH 3 NH NH 2.
Dixon); by passing air through solutions of strong bases in the presence of such metals as do not react with the bases to liberate hydrogen; by shaking zinc amalgam with alcoholic sulphuric acid and air (M.
By the action of sodium amalgam on an aqueous solution of the acid, benzyl alcohol, tetrahydrobenzoic acid and hexahydrobenzoic acid are formed.
The Brahmanic and Buddhistic literature supplied the society with its terminology, and its doctrines were a curious amalgam of Egyptian, kabbalistic, occultist, Indian and modern spiritualistic ideas and formulas.
Cautiously she moved forward, allowing herself a peek at this amalgam of evil, this seducer of virgins, who had so ravaged her body.