1. Used in the purification of brine solution in caustic chlorine plants
2. Used in the manufacture of heat treatment salts, case hardening of steel
3. Used in the manufacture of pigments
4. Used for boiler water treatment and removal of sulfate salt electrolysis.
5. Used as flux in the manufacture of magnesium metal, making color kinescope, magnetic-materialsfluorescent glass, ceramics, etc.
PROPERTY: Colorless crystals, odorless, extremely hygroscopic, easily soluble in water. It can be dissolved in glycerin but insoluble in alcohol. Its accessibility makes it easily become monohydrated salt when it is exposed to the air.
USAGE: As a cheap, soluble salt of barium, barium chloride finds wide application in the laboratory. It is commonly used as a test for sulfate ion (see chemical properties above). In industry, barium chloride is mainly used in the purification of brine solution in caustic chlorine plants and also in the manufacture of heat treatment salts, case hardening of steel, in the manufacture of pigments, and in the manufacture of other barium salts. BaCl2 is also used in fireworks to give a bright green color. However, its toxicity limits its applicability. Barium Chloride is also used (with Hydrochloric acid) as a test for sulfates. When these two chemicals are mixed with a sulfate salt, a white precipitate forwhich is barium sulfate.
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