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How to distinguish the general classification and application of barium sulfate on the market
- 2019-12-16-

There are many types of barium sulfate currently on the market. How to choose which type of barium sulfate to use is often difficult to choose, because the application of barium sulfate in various industries, the addition ratio of the formula, and the difference in types all require certain experience And technical. We can roughly be divided into two types of barium sulfate. Two types of ordinary barium sulfate and nano-barium sulfate are based on particle size. The applications of the two types of barium sulfate are introduced below.

1. Application of ordinary barium sulfate

Barium sulfate is a colorless orthorhombic crystal or an amorphous white powder. It is soluble in fuming sulfuric acid and molten alkali, slightly soluble in boiling hydrochloric acid, and almost insoluble in water. Chemically stable. It is easy to make mixed crystals with potassium permanganate, calcium carbonate or alkali metal nitrate. Thermal reduction with carbon to barium sulfide. In the air, it will not change color when it encounters hydrogen sulfide or toxic gas.

Used as a raw material or filler for paints, inks, plastics, rubber and storage batteries, surface coating agents for printing paper and art paper, and sizing agents for the textile industry. Used as a clarifying agent in glass products, it can defoam and increase gloss. Can be used as a protective wallpaper for radiation protection. It is also used in ceramics, enamel, perfume, paint and other industries. It is also a raw material for making other barium salts. It can also be used as a contrast agent for the digestive system in medical treatment.

Second, the application of nano barium sulfate

High-purity nano-barium sulfate not only has the use of ordinary barium sulfate, but also other special uses. For example, it is widely used in industrial sectors such as coatings, papermaking, rubber, ink, and plastics. The fine scaly barium sulfate is used in the manufacture of copy paper to make the paper surface smooth and bright.

The barium sulfate product with an average particle size of 0.2 microns, due to its good dispersibility, can be effectively used as a dispersant in colored pigments to make paint, printing, ink and other colors more vivid and richer in gloss.

Barium sulfate particles with an average particle size of 0.3 microns or less can be used as fillers for resins and rubbers. According to reports, even and fine barium sulfate is used as an auxiliary or additive, and the development of X-ray dual-contrast technology also requires fine and uniform barium sulfate. However, domestically produced barium sulfate cannot meet the above requirements well.