Important: Safety Warning
This page describes trade processes that use dangerously toxic materials such as cyanide solutions, mercury amalgams, or strong acids. These processes require training, equipment, and precautions far beyond what the text describes.
This information has been left in for historical purposes but should not be acted upon.
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Platinated Asbestos
Dip asbestos in a solution of chloride of platinum, and heat it to redness. It causes the inflammation of hydrogen in the same manner as sponge platinum. crystals. Antimony dissolves in hot hydrochloric acid, forming terchloride of anti-- mony; nitric acid converts it into antimonic acid. This metal is obtained principally from France and Germany. Gold, when exposed to the vapors of antimony, loses its ductility and malleability, and becomes as brittle as antimony itself.