Platinum electrode plates look black for this reason. Platinum is a very shiny metal, but tiny particles of metal deposited on the plates effectively scatter visible light. And people who are sloppy when handling silver nitrate solutions learn the hard way just how black microscopic metal crystals can be. Silver nitrate spilled on the skin photoreduces to silver metal, making a black stain that won't wash off.
|An extensive bibliography from 1990-1998, containing over 3500 citations.|
|Zinc is primarily used to galvanize steel- but other uses include zinc-air batteries, water purification, high-tech tape, and toy manufacture.|
|History, occurrence, mining, and uses of zinc.|
Author: Fred Senese email@example.com
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