Overview of key uses of barium sulfate in the industrial sector
Release time:
2021-11-29
Barium sulfate (barium sulphate), also known as barium white, is a white crystalline solid with a chemical formula of BaSO4, a relative molecular mass of 233. 39, a relative density of 4.0-4.6, a Mohs hardness of 3-3.5, and a melting point of 1580 ℃.
Barium sulfate (barium sulphate), also known as barium white, is a white crystalline solid with a chemical formula of BaSO4, a relative molecular mass of 233. 39, a relative density of 4.0-4.6, a Mohs hardness of 3-3.5, and a melting point of 1580 ℃. Barium sulfate has high density, stable chemical properties, insoluble in organic solvents, acids and alkali solutions, non-magnetic and toxic, can absorb X-rays and gamma rays, and has light resistance and corrosion resistance. Barium sulfate commonly used in the rubber industry are natural barite and precipitated barium sulfate, which are mainly used as inert fillers or colorants for the preparation of acid and alkali resistant, solvent resistant rubber products, and X-ray resistant rubber protective products.
Barium sulfate is a kind of material with environmental protection function, which is widely used in various coatings, medium and high-grade ink, pharmaceutical synthetic chemical, rubber, paper, ceramics, cosmetics and other fields. Refined barium sulfate is widely used in various coatings (water-based, oily and powder coatings, which are added to the coatings as body pigments to improve the covering and compactness of the paint film), fillers for printing ink, papermaking, engineering plastics (household appliance housings, building materials plastics), high-grade electrical insulation plastics, rubber products, etc., cathode expansion rods for batteries, and glaze materials for ceramics and enamel. Precipitated barium sulfate BaSO4 can be used as a white coating, can also be used as a filler for rubber and paper, can increase its weight and smoothness. Precipitated barium sulfate is used as filler, brightening agent and weighting agent in rubber, plastic, paper making, printing ink, coating and other industries. Barium sulfate is widely used in rubber products due to its high density, chemical inertness, equiaxed particle shape, and high filling. Barium sulfate has little effect on the vulcanization characteristics, hardness, rigidity and aging resistance of rubber
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