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n. A silver-white metallic element occurring worldwide, usually mixed with other metals such as iridium, osmium, or nickel. It is ductile and malleable, does not oxidize in air, and is used as a catalyst and in electrical components, jewelry, dentistry, and electroplating. Atomic number 78; atomic weight 195.08; melting point 1,772°C; boiling point 3,827°C; specific gravity 21.45; valence 2, 3, 4. See Table at element.

n. A medium to light gray.

adj. Of a whitish grey colour, like that of the metal.

adj. Of a musical recording that has sold over one million copies (for singles), or two million (for albums).

n. The metallic chemical element with atomic number 78 and symbol Pt.

n. A whitish grey colour, like that of the metal.

n. A single or album that has achieved platinum sales, i.e. over 1 million or 2 million.

n. A metallic element of atomic number 78, one of the noble metals, classed with silver and gold as a precious metal, occurring native or alloyed with other metals and also as the platinum arsenide (sperrylite). It is a heavy tin-white metal which is ductile and malleable, but very infusible (melting point 1772° C), and characterized by its resistance to strong chemical reagents. It is used for crucibles in laboratory operations, as a catalyst, in jewelry, 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 195.1. Symbol Pt. Formerly called platina.

n. Chemical symbol, Pt; atomic weight, 194.9. An important metal, introduced into Europe about the middle of the eighteenth century from South America.

n. a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits

"They used the term platinum in one of his legs following an assassination attempt."

noble metal   

platinum toning    platinum degree    mock platinum    wollaston's platinum process    platinum chlorid    platinum tetrachlorid    platinum standard    deville and debracy's platinum process    scale of the platinum thermometer    platinum sponge   

platina   

platina   

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nickel    copper    aluminum    titanium    manganese    platina    iridium    aluminium    magnesium    tin