Definition and Usage Areas of Barium carbonate
Barium carbonate is produced commercially from barium sulfide either by treating sodium carbonate with soda (the soda ash method) at 60 to 70 °C or by passing carbon dioxide at 40 to 90 °C.
In the soda ash process, solid or dissolved sodium carbonate is added to the barium sulfide solution and the barium carbonate precipitate is filtered, washed and dried.
- BaCO3 is mainly used for optical glass, funnels and barium magnetic materials, other barium salts, ceramics, enamel, paint, welding rod feed manufacturing
- It is also used for fireworks, flame preparation, ceramic coatings and optical glass auxiliary materials.
- BaCO3 is mainly used for the manufacture of optical glass, CRT glass and barium magnetic materials and capacitors, it is also used for carburizing carbon and metal surface treatments. It is the raw material for producing other barium salts and ceramics, enamel, pigments, paints, rubber, electrodes. It is also used as rodenticide and purifying agent, oxidation catalyst.
- Flux acts as a matting and crystallizing agent
- combines with some coloring oxides to produce unique colors
- Its use is controversial, as some claim it can leak from secrets to food and drink.
- In the brick, tile, soil, and ceramics industry, BaCO3 is added to clays to precipitate soluble salts (calcium sulfate and magnesium sulfate) that cause efflorescence.
Barium carbonate is frequently employed in ceramic industry as a component of glazes. It is added to clay to precipitate some soluble salts while manufacturing bricks, tiles and potteries. BaCO3 is mainly used as a raw material in the electrical engineering industries for glass production, and as a raw material in the magnet manufacturing industry.