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Tests for the Salts of Bismuth

Tin, copper, iron, and zinc throw down bisdown bismuth from its solutions in the metallic state.

If a salt of bismuth be heated with carbonate of soda by the flame of a blowpipe , a bead of the metal, surrounded by a crust of yellow oxide, is obtained. The brittleness of the have formed, wash them with a little nitric acid, drain them, and keep from the air in a stoppered bottle. (Paris Codex.)