Frequently Asked Questions

Barium carbonate is an inorganic compound with the formula BaCO₃. Like most carbonates of alkaline earth metals, it is a white salt that is difficult to dissolve in water. It occurs as a mineral known as witherite. In a commercial sense, it is one of the most important barium compounds.

Disodium octaborate tetrahydrate (DOT) is also known as aquabor/boron sodium oxide or sodium octaborate with formula of Na₂B₈O₁₃.4H₂O. Disodium octaborate is a white and odorless powder which contains the basic elements of boron and oxygen.

Barium Carbonate is an extremely useful chemical. It is an industrial chemical that is most commonly used in the glass manufacturing industries. Its uses are:

• Barium Carbonate is most commonly used to remove sulfate impurities of the chlor-alkali process.
• It is also a popular precursor to compounds that contain barium, such as ferrites.
• Barium Carbonate is quite extensively used in the ceramics industry. It is used as an essential ingredient in glazes.
• It acts as a flux which is a matting and crystallising agent.
• It combines with specific colouring oxides and produces unique colours which are not easily attainable by any other materials.
• Its use is questionable to some extent because some people claim that it transfers from glazes into food and drinks. Therefore, for a safer use of Barium Carbonate, it is best to be used in fritted form.
• It is added to clays to precipitate soluble salts that cause efflorescence, such as calcium sulfate and magnesium sulfate, in the brick, tile, earthenware, and pottery industries.
• It is also used for manufacturing optical glass, picture tube glass, barium magnetic materials and capacitors, as well as raw materials for the manufacture of other barium salts and ceramics, enamel, pigments, coatings, rubber, welding rods.
• It is used in steel carburising and metal surface treatment.
• It can also be used as a water purifier, rodenticide, and oxidation reaction catalyst.

Barium Carbonate is an extremely useful chemical. It is an industrial chemical that is most commonly used in the glass manufacturing industries. Its uses are:

• Barium Carbonate is most commonly used to remove sulfate impurities of the chlor-alkali process.
• It is also a popular precursor to compounds that contain barium, such as ferrites.
• Barium Carbonate is quite extensively used in the ceramics industry. It is used as an essential ingredient in glazes.
• It acts as a flux which is a matting and crystallising agent.
• It combines with specific colouring oxides and produces unique colours which are not easily attainable by any other materials.
• Its use is questionable to some extent because some people claim that it transfers from glazes into food and drinks. Therefore, for a safer use of Barium Carbonate, it is best to be used in fritted form.
• It is added to clays to precipitate soluble salts that cause efflorescence, such as calcium sulfate and magnesium sulfate, in the brick, tile, earthenware, and pottery industries.
• It is also used for manufacturing optical glass, picture tube glass, barium magnetic materials and capacitors, as well as raw materials for the manufacture of other barium salts and ceramics, enamel, pigments, coatings, rubber, welding rods.
• It is used in steel carburising and metal surface treatment.
• It can also be used as a water purifier, rodenticide, and oxidation reaction catalyst.

Barium carbonate is widely used in the ceramics industry as an ingredient in glazes. It acts as a flux, matting and crystallizing agent and combines with certain coloring oxides to produce unique colours not easily attainable by other means. Its use is somewhat controversial since some claim that it can leach from glazes into food and drink. To provide a safe means of use, BaO is often used in fritted form. In the brick, tile, earthenware and pottery industries barium carbonate is added to clays to precipitate soluble salts (calcium sulfate and magnesium) that cause efflorescence. Product Name : BARIUM CARBONATE CAS No. 513-77-9 Molecular Formula BaCO3 Molecular Weight 197.34 Description White Powder / Off White Powder Specifications Assay Min 97 % Moisture Max 0.25 % Matter insoluble in HCL Max 1 % Iron as Fe2O3 Max 0.1 % Reactivity 81-85 % Soluble sulphide as BaS Max 0.4 % Alkali & other metals as sulphate Max 2 %

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