Popoties+and+uses+of+Arsenic

The Three forms of Arsenic is known as: gamma-Arsenic which is also known as gray-Arsenic, As, is the ordinary form and it is a steel-gray metallic substance with a bright luster, beta-Arsenic is formed when the gamma-Arsenic is heated in a stream of Hydrogen and black crystals of beta-Arsenic are deposited nearest the hot end of the tube, and alpha-Arsenic is formed when the gamma-Arsenic is heated in a stream of Hydrogen and a yellow powder of alpha-Arsenic is deposited in the cooler part of the tube. alpha-Arsenic is very sensitive to light and reverts to gamma-Arsenic.

Arsenic has a wide variety of uses in several industries. It is used in the manufacture of arsenic compounds, in preparing hardened lead shot (i.e. an alloy of lead and arsenic), in alloys used for making boiler tubes,in insecticides and weed-killers, in the electronics industry in the manufacture of semiconductors, and Arsenic in the form of Gallium Arsenide is used in semiconductor lasers.

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