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iridium

iridium

iridium Sentence Examples

  • It may be obtained in the spongy form by igniting iridium ammonium chloride, and this variety of the metal readily oxidizes when heated in air.

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  • Iridium tetrachloride, IrC1 41 is obtained by dissolving the finely divided metal in aqua regia; by dissolving the hydroxide in hydrochloric acid; and by digesting the hydrated sesquichloride with nitric acid.

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  • Iridium tetrachloride, IrC1 41 is obtained by dissolving the finely divided metal in aqua regia; by dissolving the hydroxide in hydrochloric acid; and by digesting the hydrated sesquichloride with nitric acid.

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  • Iridium sulphide, IrS, is obtained when the metal is ignited in sulphur vapour.

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  • Iridium sulphide, IrS, is obtained when the metal is ignited in sulphur vapour.

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  • Aqua Regia, a mixture of nitric and hydrochloric acids, converts all metals (even gold, the "king of metals," whence the name) into chlorides, except only rhodium, iridium and ruthenium, which, when pure, are not attacked.

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  • Iridium sesquichloride, IrC1 31 is obtained when one of the corresponding double chlorides is heated with concentrated sulphuric acid, the mixture being then thrown into water.

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  • The disulphide, IrS2, is formed when powdered iridium is heated with sulphur and an alkaline carbonate.

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  • In the following year he discovered rhodium; and at about the same time Smithson Tennant added two more to the list - iridium and osmium; the former was so named from the changing tints of its oxides (ipcs, rainbow), and the latter from the odour of its oxide (ovµA, smell).

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  • Gold, platinum, iridium and rhodium only are proof against the action of this powerful oxidizer.

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  • Nitric acid is without action on gold, platinum, iridium and rhodium.

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  • 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.

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  • Debray in the case of rhodium, iridium and ruthenium, which evolve heat when they are dissolved in zinc. When the solution of the rhodium-zinc alloy is treated with hydrochloric acid, a residue is left which undergoes a change with explosive violence if it be heated in vacuo to 400°.

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  • Gold and Iridium.

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  • - Small quantities of iridium do not destroy the ductility of gold, but this is probably because the metal is only disseminated through the mass, and not alloyed, as it falls to the bottom of the crucible in which the gold is fused.

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  • In this process all the anode metals pass into solution except iridium and other refractory metals of that group, which remain as metals, and silver, which is converted into insoluble chloride; lead and bismuth form chloride and oxychloride respectively, and these dissolve until the bath is saturated with them, and then precipitate with the silver in the tank.

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  • OSMIUM [[[symbol]] Os., atomic weight 190.9 (0= 16)], in chemistry, a metallic element, found in platinum ore in small particles, consisting essentially of an alloy of osmium and iridium and known as osmiridium.

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  • The residue so obtained is then powdered and ignited with barium nitrate, which converts the iridium into its oxide and the osmium into barium osmiate.

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  • 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.

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  • 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).

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  • when Q, Iridium pivct.

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  • Iridium >>

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  • Stratos is a leading global telecommunications service provider specializing in mobile and fixed remote communications including iridium worldwide.

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  • Aircraft - which can use iridium providing they don't exceed about Mach 2 at which point the orbiting satellites, can get confused!

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  • iridium flare to a UFO.

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  • iridium spark plugs page for a more detailed comparison.

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  • iridium satellite phone is ideal for keeping in touch no matter where you are.

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  • iridium plug?

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  • iridium telephones and satellites.

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  • He showed that large amounts of the element iridium present in geological layers dating from about 65 million BC had a cosmic origin.

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  • Please refer to our iridium spark plugs page for further information.

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  • He is looking for a buyer for his self-build ocean-going yacht and his Iridium satellite phone.

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  • IRIDIUM (symbol Ir.; atomic weight 193.1), one of the metals of the platinum group, discovered in 1802 by Smithson Tennant during the examination of the residue left when platinum ores are dissolved in aqua regia; the element occurs in platinum ores in the form of alloys of platinum and iridium, and of osmium and iridium.

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  • The iridium is then precipitated from the solution (as oxide) by the addition of baryta, dissolved in aqua regia, and precipitated as iridium ammonium chloride by the addition of ammonium chloride.

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  • It may be obtained in the spongy form by igniting iridium ammonium chloride, and this variety of the metal readily oxidizes when heated in air.

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  • Two oxides of iridium are known, namely the sesquioxide, Ir203, and the dioxide, Ir02, corresponding to which there are two series of salts, the sesqui-salts and the iridic salts; a third series of salts is also known (the iridious salts) derived from an oxide IrO.

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  • Iridium sesquioxide, Ir 2 0 3, is obtained when potassium iridium chloride is heated with sodium or potassium carbonates, in a stream of carbon dioxide.

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  • The hydroxide, Ir(OH) 3, may be obtained by the addition of caustic potash to iridium sodium chloride, the mixture being then heated with alcohol.

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  • Iridium dioxide, Ir0 2, may be obtained as small needles by heating the metal to bright redness in a current of oxygen (G.

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  • Iridium sesquichloride, IrC1 31 is obtained when one of the corresponding double chlorides is heated with concentrated sulphuric acid, the mixture being then thrown into water.

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  • Potassium iridium sesquichloride, K 3 IrC1 6.3H 2 O, is obtained by passing sulphur dioxide into a suspension of potassium chloriridate in water until all dissolves, and then adding potassium carbonate to the solution (C. Claus, Jour.

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  • The disulphide, IrS2, is formed when powdered iridium is heated with sulphur and an alkaline carbonate.

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  • Iridium forms many ammine derivatives, which are analogous to the corresponding platinum compounds (see M.

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  • Iridium is always determined quantitatively by conversion into the metallic state.

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  • In the following year he discovered rhodium; and at about the same time Smithson Tennant added two more to the list - iridium and osmium; the former was so named from the changing tints of its oxides (ipcs, rainbow), and the latter from the odour of its oxide (ovµA, smell).

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  • Seubert redetermined this constant for platinum, osmium and iridium; E.

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  • Gold, platinum, iridium and rhodium only are proof against the action of this powerful oxidizer.

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  • Aqua Regia, a mixture of nitric and hydrochloric acids, converts all metals (even gold, the "king of metals," whence the name) into chlorides, except only rhodium, iridium and ruthenium, which, when pure, are not attacked.

    0
    0
  • 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.

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  • Debray in the case of rhodium, iridium and ruthenium, which evolve heat when they are dissolved in zinc. When the solution of the rhodium-zinc alloy is treated with hydrochloric acid, a residue is left which undergoes a change with explosive violence if it be heated in vacuo to 400°.

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  • Gold and Iridium.

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  • - Small quantities of iridium do not destroy the ductility of gold, but this is probably because the metal is only disseminated through the mass, and not alloyed, as it falls to the bottom of the crucible in which the gold is fused.

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  • In this process all the anode metals pass into solution except iridium and other refractory metals of that group, which remain as metals, and silver, which is converted into insoluble chloride; lead and bismuth form chloride and oxychloride respectively, and these dissolve until the bath is saturated with them, and then precipitate with the silver in the tank.

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  • OSMIUM [[[symbol]] Os., atomic weight 190.9 (0= 16)], in chemistry, a metallic element, found in platinum ore in small particles, consisting essentially of an alloy of osmium and iridium and known as osmiridium.

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  • The residue so obtained is then powdered and ignited with barium nitrate, which converts the iridium into its oxide and the osmium into barium osmiate.

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  • They also combine with nitrosyl bromide and chloride, and with many metallic haloid salts (platinum bichloride, iridium chloride), with mercury salts (see K.

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  • 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.

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  • 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).

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  • when Q, Iridium pivct.

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  • Nitric acid is without action on gold, platinum, iridium and rhodium.

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  • Please refer to our Iridium spark plugs page for further information.

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  • Radioactive iridium wire implant of tongue The staging of the tumor.

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  • He is looking for a buyer for his self-build ocean-going yacht and his Iridium satellite phone.

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  • Oakley Monster Dog: Also priced at $90.00, the Monster Dog comes available in three colors: Black/grey, brown tortoise/bronze and crystal black/black iridium.

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  • Priced at just $60.00, you can purchase this style in dark amber/bronze or black/blue iridium.

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  • Oakley Classics Fives 3.0 Sunglasses: Done in a grey smoke frame/black iridium lens, these sunglasses are available for the very wallet-friendly price of just $39.99.

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  • Campmor only has one Oakley style available, and that's the Oakley Five Sunglasses with Iridium Lens.

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  • Brushed thick frame with emerald iridium lenses.

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  • Brushed thick frame with black iridium lenses.

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  • Brushed thick frame with emerald iridium lenses.

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  • Dark thick frame with black iridium lenses.

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  • Platinum frame with gold iridium lenses.

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  • Black chrome thick frame with black iridium lenses.

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  • Oakley Black Rain frames came with either Red Iridium or Black Iridium lenses.

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  • Oakley and snowboarder Danny Kass, owner of Grenade, created this unique version of Frogskins done in a Grenade Fade frame with Black Iridium lenses.

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  • The Asian Fit option includes a Jet Black frame with Black Persimmon Iridium Transitions lens or a Grey frame with G40 Transitions lens.

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  • The women's Half Jacket comes in a Pearl frame with Black Iridium lens.

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  • Both styles are done with Black frames and Black Iridium lenses.

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  • The lenses of these sunglasses are polarized and come in Black Iridium.

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  • For those who like to color outside the lines, this Neon Yellow sunglass with its Fire Iridium lens may be the perfect fit!

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  • The brown arms of this sunglass are the perfect foil for the Fire Iridium lens.

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  • These sunglasses are incredibly futuristic with their clear arms and violet iridium lenses; this is the perfect look to complement any outfit!

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  • Oakley 09-671: The black iridium lens color and crystal black frame are designed to enhance the joy of any sport performance.

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  • Oakley 09-673: Those who enjoy standing out from the monochrome crowd will appreciate this blue iridium lens color and white chrome frame.

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  • Oakley 09-674: What makes this black iridium lens and jet black frame model stand out from its peers is the fact that it's polarized.

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  • Oakley 09-686: It will be incredibly hard indeed to resist the pixie sweetness of these golden brown iridium lenses!

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  • Oakley 09-687: Inspired by the cold harshness of the deep tundra, this Tungsten iridium lens and brown smoke frame will look very stylish indeed once on the slopes.

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  • For $242.00, this iridium lens and jet black finish is a fashionable take on sports technology.

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  • The frame is finished in a metallic red, while the lens offers up shiny black iridium.

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  • Oakley 12-763: Love this sleek model for its delightful yellow accents, black iridium lens, and jet black frame finish.

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  • Style 12-856: This look is a matte black coupled with black iridium lenses.

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  • Style 12-884J: A matte black frame coupled with a black iridium polarized lens.

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  • Back Country also offers the Gascan look in a dark grey frame and black iridium polarized lenses.

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  • The H2O™L model is available in two color combinations: Carbon Fiber/Black Iridium and Carbon Fiber/Grey.

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  • The lens choices for Mars included Black Iridium, Ruby Iridium and Gold Iridium.

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  • Polarized Radar® Pitch: This particular pair screams "action" and is available in Jet Black/Black Iridium or Brown Smoke/Bronze.

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  • There are eight color combinations available with this one, including Polished Amber/Dark Bronze, Polished White/Violet Iridium, and Matte Black/Grey.

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  • Polarized Juliet ®: This one is a top seller for Oakley and comes in your choice of Carbon/Black Iridium, Plasma/Ice Iridium, and Polished/Fire Iridium.

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  • You can get the polarized versions in Black Iridium, Ice Iridium, or Fire Iridium.

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  • Other color options include Emerald Iridium, Fire Iridium, Gold Iridium, Ice Iridium, Ruby Iridium, and Black Iridium.

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  • Choose from Black Iridium, Dark Grey, Grey, Amber Black Iridium Polarized, and Bronze Polarized lenses.

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  • Splice in Crystal Black: This Oakley look has a Crystal Black frame that is coupled with Ice Iridium lenses.

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  • Splice in Black: The Splice in Black differs from its Black Chrome counterpart by way of lens color; this one is emerald, while the former is done in Black Iridium.

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  • MT Gears: MT Gears is currently offering the Rootbeer/Gold Iridium sunglasses on their site.

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  • The Iridium coating further helps to maximize the optics of the lenses.

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  • They cost $120.00 and you can get them in carbon/tungsten iridium, light/ice iridium, and polished black/black iridium.

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  • For the same price, you can purchase them at Amazon.com in three colors: polished black/gray, carbon/tungsten iridium, and light/ice iridium.

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  • At REI, you'll find them again for $120.00, in carbon/tungsten iridium and light/ice iridium.

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  • You can get polished black/black iridium, carbon/bronze polarized, light/ice iridium, dark/ice iridium polarized, and carbon/tungsten iridium.

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  • Violet iridium lenses with clear frames make the Jupiter an eye catching pair of sunglasses.

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  • Blue iridium lenses are unique mixture of blue and purple.

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  • Half Jacket accessory lenses come in an ice iridium polarized shade that has a tinge of purple in the coloring.

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  • So for all of you that are looking for Half Jackets in a silver/blue iridium lens or in a gunmetal/gold lens, you may want to turn to this site first.

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  • The unisex vintage styles came in a handful of colors including Crystal Black and Emerald, with iridium lenses.

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  • Other companies, like Inmarsat and Iridium, issue numbers with special country calling codes.

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  • Choose from a series of Iridium satellite phones and add extra features like more airtime minutes, loss and theft protection, and more.

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  • Regular voice calls to landlines and cellular phones are $1.99 per minute, which is the same rate for calling other Iridium satellite phones or checking your voicemail inbox.

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  • The services include both mobile voice and data with Iridium global satellite phones.

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  • It was in the late 1990s that Motorola spun off the creation of Iridium, a company dedicated to satellite communications.

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  • In addition to Motorola, Kyocera was also involved in the development of Iridium satellite phones.

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  • Unfortunately for both companies, Iridium faced many significant growing pains in its early stages, struggling to turn a profit and elicit a large enough customer base.

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  • That said, key clients like the United States Department of Defence held steady and the USA-based Iridium was able to survive.

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  • Two main models of Motorola satellite phones are available for purchase, though they are likely branded as Iridium devices at most major retailers.

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  • Motorola does not provide worldwide service, but Iridium is able to provide satellite phone service around the globe.

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  • The Motorola Satellite 9500, which was also sold as the Iridium 9500 Satellite Phone, is a rugged model that provides both voice and data services.

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  • It was also marketed as the Iridium Satellite Series 9505 Portable Phone, and it is both rugged and weather-resistant.

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  • Tacori platinum rings use an alloy of 95% platinum and only 5% iridium for exceptional strength and brilliance.

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  • Seubert redetermined this constant for platinum, osmium and iridium; E.

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  • Iridium sesquioxide, Ir 2 0 3, is obtained when potassium iridium chloride is heated with sodium or potassium carbonates, in a stream of carbon dioxide.

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