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[Chemical Knowledge]：What are the upstream raw materials for barium carbonate? What do the downstream products contain?

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Barium carbonate is an important inorganic chemical raw material, which is widely used in glass, ceramics, electronics, medicine, pigments and other fields. In the field of raw materials for chemical production, the upstream and downstream related products of barium carbonate mainly include the following aspects:

upstream products:

1. Carbonate: The production of barium carbonate mainly uses carbonate as raw material, such as limestone, dolomite, etc. Barium carbonate can be obtained from these carbonates after calcination, digestion, carbonization and other processes.
2. barium salt: barium carbonate can also be used in the production of barium salt as raw material, such as barium sulfate, barium nitrate, etc. These barium salts react with carbonates to form barium carbonate precipitates.

Downstream products:

1. Glass: Barium carbonate can be used as one of the raw materials for glass production to improve the refractive index and transparency of glass, and to adjust the thermal and chemical stability of glass.
2. Ceramics: Barium carbonate can also be used in ceramic production as a raw material for glaze and porcelain clay to improve the whiteness and gloss of ceramics.
3. Electronic components: Barium carbonate can be used as a raw material for electronic components, used in the production of capacitors, resistors and other electronic components, with high dielectric constant and stability.
4. Pigment: Barium carbonate can be used as a raw material for the production of pigments, used in the manufacture of white pigments and other pigments, with high hiding power and weather resistance.

In short, barium carbonate has a wide range of upstream and downstream related products in the field of chemical production raw materials, which plays an important role in promoting the development of the chemical industry.

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