Barium Carbonate

Barium Carbonate is a versatile compound with broad applications, particularly in the ceramics, glass, and chemical industries. Its ability to act as a flux, its stability, and its role as a precursor to other barium compounds make it an important material in various manufacturing processes. However, its toxicity requires careful handling and consideration of safety measures in its use.

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CAS: 513-77-9

HSN Code: 28366000

Chemical Formula: BaCO₃

Applications

Properties

• Ceramics: Glazes: Used in the production of ceramic glazes, where it helps improve the finish and colour. It also acts as a flux, reducing the melting temperature of the glaze. Bricks and Tiles: Added to the clay mix in the manufacture of bricks and tiles to reduce efflorescence by neutralizing soluble salts.
• Glass Manufacturing: Employed in the production of certain types of glass, including optical glass, where it improves the refractive index and optical clarity.
• Brick and Tile Industry: Used to prevent the formation of scum on the surface of bricks and tiles during production, enhancing the appearance and quality of the final product.
• Chemical Manufacturing: Precursor to Other Barium Compounds: Barium Carbonate is a starting material for the production of other barium compounds such as Barium Chloride (BaCl₂), Barium Nitrate (Ba(NO₃)₂), and Barium Sulphate (BaSO₄).
• Purification of Brine Solutions: Used in the chlor-alkali industry to purify brine solutions by precipitating calcium and magnesium ions as their insoluble carbonates.
• Pyrotechnics: Utilized in the production of green-coloured fireworks due to the green flame produced by barium compounds when burned.
• Water Treatment: Used in the treatment of industrial waste to remove sulphates from water by precipitating them as insoluble barium sulphate.
• Rat Poison: Historically used in rodenticides, although its use has declined due to toxicity concerns and the availability of safer alternatives.
• Electronics: In the production of some types of capacitors and in the manufacturing of certain types of ceramic insulators.
• Agriculture: Employed in small amounts as a soil additive to neutralize acidic soils, although this use is less common due to its toxicity.

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