Barium carbonate (Barium carbonate), is a kind of inorganic compounds, white powder, insoluble in water, soluble in strong acid, toxic, widely used.

Barium carbonate is slightly soluble in water containing carbon dioxide, but also soluble in ammonium chloride or ammonium nitrate solution to form a complex, soluble in hydrochloric acid, nitric acid release carbon dioxide. Toxic. Used in electronics, instrumentation, metallurgical industry. Preparing fireworks, making signal flares, ceramic coatings, making optical glass accessories. Also used as a rodenticide, water clarifier and filler

Barium carbonate is commonly used in ceramic coatings and optical glass accessories for the manufacture of electronic ceramics, PTC thermistors, capacitors and other electronic components. Calcium, magnesium, manganese and zinc were analyzed for iron. Detection and determination of halogens in organic compounds. Used for making barium salts, pigments, fireworks, rodent-killing pottery, and used as fillers and water clarifiers. For catalysts. The production of electronic ceramics and purified water, the production of pigments, coatings or other barium salts for optical glass, barium magnetic materials, etc. are important chemical raw materials for the production of kinescope glass shells, magnetic materials and advanced optical glass. Treatment of excessive sulfate in chromium plating electrolyte, also used in zinc plating white passivation solution, can also be used to treat wastewater.

Barium carbonate is barium salt, has a strong toxicity, barium carbonate will accumulate in the bone, causing bone marrow leukocyte tissue hyperplasia, resulting in chronic poisoning. And barium carbonate will react with hydrochloric acid in gastric juice and become soluble barium chloride. Barium chloride is a soluble barium salt and is a toxic substance. If it is not rescued in time, it will be poisoned soon and will die in severe cases. The LD50 of barium carbonate is about 418 mg/kg. For patients with acute poisoning of barium carbonate, gastric lavage, enema, emetic and other measures are usually taken to make barium carbonate out of the body. At the same time, the reaction of potassium sulfate with soluble barium chloride formed in gastric juice can make the toxic barium become insoluble barium sulfate precipitate and reduce the toxicity. Potassium sulfate is used because barium carbonate poisoning may cause hypokalemia.