Barium carbonate
Barium carbonate is divided into light and heavy, and there are also granular barium carbonate.
Barium carbonate has a molecular formula of BaCO3 and a molecular weight of 197.34.
Inorganic compound, white powder, hardly soluble in water, easily soluble in strong acid. Toxic and very versatile.
【Basic Information】
Chinese name: barium carbonate
English name: Barium carbonate
Chinese alias: C.I. Pigment White 10; Barium Carbonate; Precipitated Barium Carbonate; Poisonite; Nano Barium Carbonate; High Purity Barium Carbonate; High Purity Barium Carbonate BC-16; Barium Carbonate (1:1); Granular Barium Carbonate; Barium Carbonate Ore
English alias: Barium carbonate
CAS Number: 513-77-9
【Physical data】
Properties Industrial products are white powder.
Melting_point 1740℃
Relative to Density 4.43
Solubility Almost insoluble in water, insoluble in alcohol, soluble in acid and ammonium chloride solution.
Storage method
Storage precautions [14] Store in a cool, ventilated warehouse. Keep away from fire and heat sources. The package is sealed. It should be stored separately from acids and edible chemicals, and avoid mixed storage. The storage area should be equipped with suitable materials to contain the leakage.
【The main purpose】
1. Mainly used in the production of PTC thermal electronic components, manufacturing chip components, semiconductor capacitors, etc. 2. Analyze iron in calcium, magnesium, manganese and zinc, and measure halogen in organic matter. It is used to make barium salts, pigments, fireworks and signal flare, optical glass, rodenticide, pottery, porcelain, and as filler and water clarifier. 3. Used as a raw material in the electronics industry, used to prepare capacitors, PTC electronic components, positive temperature coefficient thermistors, etc. 4. Used as analytical reagents, fuel preparation for fireworks and signal bombs, auxiliary materials for ceramic coatings and optical glass. 5. Used to treat excess sulfate in chromium plating electrolyte, also used in white passivation solution for zinc plating layer, and also used to treat chromium-containing wastewater. 6. Used as analytical reagents, water purifiers, rodenticides and barium salts, and also used in the electronics industry, instrumentation, and metallurgical industries. [15]
【System number】
CAS Number: 513-77-9
MDL number: MFCD00003448
EINECS number: 208-167-3
RTECS number: CQ8600000
BRN number: 7045119
PubChem number: 24852112
Security Information
· Packing grade: III
· Hazard category: 6.1(b)
· Customs code: 2836600000
· Dangerous goods transport code: UN15646.1/PG3
· WGKGermany:
· Dangerous category code: R22
· Safety instructions: S24/25
· RTECS number: CQ8600000
· Dangerous goods mark: Xn:Harmful
