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Platinum
Title: Platinum
Category: Science & Technology
Details: Words: 903 | Pages: 3.8 (approximately 235 words/page)
Platinum
I am a silvery metal that is as resistant to corrosion and tarnishing as gold. I am almost as rare and consequently am the likewise highly valued and used in Jewelry. I am also used in chemicals industry as a catalyst, in medicine as an anti-cancer drug, and in catalytic converters for car exhausts. I have an atomic number ok 78, my atomic weight is 195.09 (when rounded 195) and a symbol of Pt. Who am I? I’…showed first 75 words of 903 total…
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…showed last 75 words of 903 total…and water. Fine platinum wire glows when placed in methyl alcohol vapor, where it acts as a catalyst, converting the alcohol to formaldehyde. This effect is used commercially to produce cigarette lighters and hand warmers.
The price of platinum has varied widely relative to the price of gold. Although it is slightly more valuable today, it was once used as a gold adulterant.
Bibliography
Grolier 1996 computer encyclopedia
American Desk Encyclopedia copyright in 1998
www.britanica.com
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