Platinum
subject = Chemistry
title = Platinum
Platinum is a relatively rare, chemically inert, metallic element. It symbol
is Pt, atomic number is 78, and its atomic weight is 195.09. Platinum is one
of the heaviest substances known. One cubic foot of Platinum weighs 21 times
as much as a cubic foot of water. A grayish-white metal, Platinum has a melting
point of 1772 degrees C and a realatively high boiling point of 3827 degrees
C. It has a high fusing point, is …
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…Platinum alloys
because they must withstand high temperatures for long periods of time. At
petroleum refineries, finely divided Platinum is used as a catalyst in upgrading
the octane of gasoline. In automobiles, converters containing Platinum-Palladium
alloys reduce air pollution from exhaust gases. High quality optical glass
for television picture tubes and eyeglasses is melted in pots lined with nonreactive
Platinum alloys. A form of Platinum,cisplatin, stops cancer cell division
and disrupts its growth pattern.
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