barium chloride

noun

, Chemistry.

a colorless, crystalline, water-soluble, poisonous solid, BaCl 2 ⋅2H 2 O, used chiefly in the synthesis of pigments and in the manufacture of rodenticides and pharmaceuticals.

A mixture of equal parts of cryolite and barium chloride is very good in soldering bronze or aluminum alloys.

When cold, extract with water, and determine the sulphur volumetrically with standard barium chloride.

Caffein aids the action of nitrates, acetanilid, ethyl alcohol and amyl alcohol, and increases the toxicity of barium chloride.

If sulphuric acid is present it must be separated by treating the solution of the compound with barium chloride and filtering.

To the filtrate ammonia is added, and then barium chloride, which precipitates the sulphur as barium sulphate.

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