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Essay Details:
Essay text:
Arsenic occurs in two solid forms: gray, metallic in appearance, with a specific gravity of 5.7 and yellow, nonmetallic, with a specific gravity of 2.0. Since ancient times, man has known arsenic. Arsenic occurs frequently in some of the sulfur in the sulfides that are the principal ores of many heavy metals. When these ores are heated, the arsenic sublimes leaving ferrous sulfide.
Some Uses:
Arsenic is used as a doping agent in solid-state devices. Gallium arsenide is used in lasers which convert electricity into coherent light. Arsenic compounds are used as insecticides and in other poisons...
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