Chemistry platinum

Early uses[ edit ] Archaeologists have discovered traces of platinum in the gold used in ancient Egyptian burials as early as BC.

Chemistry platinum

In Wollaston formed a cost-sharing partnership with Smithson Tennant, whom he had befriended at Cambridge, to produce and market chemical products. Although Tennant achieved only limited success in his independent endeavours, Wollaston was spectacularly successful.

He set about trying to… Platinum, one of the most abundant platinum metals, and its alloys are indispensable in the chemical laboratory for electrodes and for crucibles and dishes in which materials can be heated to high temperatures. Platinum is used for electrical contacts and sparking points because it resists both the high temperatures and chemical attack of electric arcs.

Jewelry and dental alloys account for much of its use; platinum-iridium is used for surgical pins. The prototype international Chemistry platinum kilogram of mass was made from an alloy of 90 percent platinum and 10 percent iridium.

23 years on the web

As a catalystplatinum has many applications, notably in automotive catalytic converters and in petroleum refining. The Spaniards called the new metal platina del Pinto for its resemblance to silver. Placer deposits are the most productive sources of the native element.

Chemistry platinum

The ordinary variety of native platinum is called polyxene; it is 80 percent to 90 percent platinum, with 3 percent to 11 percent ironplus the other platinum metals, and goldcopperand nickel. For mineralogical properties, see native element table.

Chemistry platinum

Platinum is also found in the very rare native alloy platiniridium. Platinum occurs combined with arsenic as sperrylite PtAs2 in the copper—nickel-mining district near Sudbury, Ont. For information about the mining, recovery, and production of platinum, see platinum processing.

It is capable of absorbing large volumes of hydrogenand, with palladiumit is one of the most reactive platinum metals. Among the transition metals, platinum has one of the greatest tendencies to form bonds directly with carbon. Platinum also combines with a number of nonmetallic elements on heating, such as phosphorusarsenic, antimonysiliconsulfur, and selenium.

Natural platinum is a mixture of six isotopes: All are stable except platinum and platinum, which have been reported as long-lived alpha emitters.title = "The Chemistry of Platinum in the +3 Oxidation State", abstract = "Platinum(III) is no longer an uncommon oxidation state.

Numerous binuclear platinum(III) complexes have been prepared and structurally characterized over the past eight years. The Chemistry of the Platinum Group Metals A REVIEW OF THE INTERNATIONAL CONFERENCE For caninariojana.com time an intwnational conference has been devoted solely.

Platinum (revised)

The Chemistry of the Platinum Group Metals A REPORT OF THE EIGHTH INTERNATIONAL CONFERENCE By John Evans Department of Chemistry, university of Southampton, Southampton SO17 1 BJ, U.K.

The themes of the Eighth International.

Platinum is a chemical element with symbol Pt and atomic number It is a dense, malleable, ductile, highly unreactive, The cod complex and the halides are convenient starting points to platinum chemistry. Cisplatin, or cis-diamminedichloroplatinum(II) is the first of a series of square planar platinum. PLATINUM (REVISED) Note: This article, originally published in , was updated in for the eBook edition. Overview. Platinum is a transition metal in Group 10 (VIIIB) of the periodic caninariojana.com periodic table is a chart that shows how chemical elements are related to each other. Platinum is also a member of a group of metals named after itself. Element Platinum Pt. Comprehensive data on the chemical element Platinum is provided on this page; including scores of properties, element names in many languages, most known nuclides of Platinum. Common chemical compounds are also provided for many elements.

Platinum's chemical legacy goes far beyond medicinal chemistry. In the last 50 years platinum catalysts have become widespread in industry, used to enhance the octane number of gasoline, and manufacturing primary feedstocks for the plastics industry.

Aug 06,  · Platinum with the atomic number 78 and an atomic mass of in the periodic table. Learn about the heavy metal and how it leads to health issues upon exposure to its salts, it is not as toxic as some metals. Platinum is a chemical element with symbol Pt and atomic number It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal.

Its name is derived from the Spanish term platino, meaning "little silver". Platinum is a member of the platinum group of elements and group 10 of the periodic table of elements.

Platinum | caninariojana.com