Definition of Platinum. Meaning of Platinum. Synonyms of Platinum

Here you will find one or more explanations in English for the word Platinum. Also in the bottom left of the page several parts of wikipedia pages related to the word Platinum and, of course, Platinum synonyms and on the right images related to the word Platinum.

Definition of Platinum

Platinum
Platinum Plat"i*num, n. [NL., fr. Sp. platina, from plata silver, LL. plata a thin plate of metal. See Plate, and cf. Platina.] (Chem.) A metallic element, intermediate in value between silver and gold, occurring native or alloyed with other metals, also as the platinum arsenide (sperrylite). It is heavy tin-white metal which is ductile and malleable, but very infusible, and characterized by its resistance to strong chemical reagents. It is used for crucibles, for stills for sulphuric acid, rarely for coin, and in the form of foil and wire for many purposes. Specific gravity 21.5. Atomic weight 194.3. Symbol Pt. Formerly called platina. Platinum black (Chem.), a soft, dull black powder, consisting of finely divided metallic platinum obtained by reduction and precipitation from its solutions. It absorbs oxygen to a high degree, and is employed as an oxidizer. Platinum lamp (Elec.), a kind of incandescent lamp of which the luminous medium is platinum. See under Incandescent. Platinum metals (Chem.), the group of metallic elements which in their chemical and physical properties resemble platinum. These consist of the light platinum group, viz., rhodium, ruthenium, and palladium, whose specific gravities are about 12; and the heavy platinum group, viz., osmium, iridium, and platinum, whose specific gravities are over 21. Platinum sponge (Chem.), metallic platinum in a gray, porous, spongy form, obtained by reducing the double chloride of platinum and ammonium. It absorbs oxygen, hydrogen, and certain other gases, to a high degree, and is employed as an agent in oxidizing.

Meaning of Platinum from wikipedia

- Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white...
- certification categories, which are named after precious materials (gold, platinum and diamond). The threshold required for these awards depends upon the...
- Pokémon Platinum Version is a role-playing video game developed by Game Freak, published by The Pokémon Company and Nintendo for the Nintendo DS handheld...
- Platinum Blonde may refer to: Platinum Blonde (band), a Canadian New Wave music band, po****r in the 1980s Platinum Blonde (album), 1983 debut EP by the...
- sales, the Platinum award was added in 1976, for albums able to sell one million units, and singles selling two million units. The Multi-Platinum award was...
- A 'platinum jubilee is a celebration held to mark an anniversary. Among monarchies, it usually refers to a 70th anniversary. Bhumibol Adulyadej of Thailand...
- ranking below Gold. In most cases, a "Multi-Platinum" or "Multi-Diamond" award is given for multiples of the Platinum or Diamond requirements. Many music industries...
- disease. Use during pregnancy is known to harm the baby. Cisplatin is in the platinum-based antineoplastic family of medications. It works in part by binding...
- Platinum Weddings is an American reality television series which premiered on July 23, 2006, on the WE tv cable channel. The series chronicles the lives...
- The platinum-group metals (abbreviated as the PGMs; alternatively, the platinoids, platinides, platidises, platinum group, platinum metals, platinum family...
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