What is barium chloride?

Aqueous barium chloride with the chemical formula BaCL2.2H20 is a crystalline substance with a white color, which is considered one of the water-soluble salts of barium. This substance is one of the most widely used barium compounds in the laboratory and industry, and is usually produced by the reaction of hydrochloric acid with barium carbonate. This substance is soluble in methanol and insoluble in ethanol. If heated to aqueous barium chloride, this compound loses water and turns into a white powder. The boiling point of this substance is 962 degrees Celsius.

Barium chloride production method

The reaction of barium carbonate with hydrochloric acid
BaCO3 + HCl → BaCl2 + H2O + CO2

The reaction of barium sulfide with hydrochloric acid
BaS + 2 HCl → BaCl2 + H2S

Uses and applications

• Purification of water and precipitation of sulfate ions (formation of barium sulfate, which has a very low solubility coefficient) will separate lone sulfate. Of course, the drawback of this method will be replacing dissolved chlorine with sulfate.
• Production of all kinds of polymers
• Production of steel superalloys and hard steels
• Production of fireworks
• Production of colored glass
• Dyeing and textile industry
• Leather production