Alternate Names: Calk, Calk-Stone, Barite, Barytes, BaSO4, Barium Sulphate
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|DENS - Density (Specific Gravity)||1350.00|
Barium sulfate is used as a pigment extender for coatings, plastics, rubber and chalks.
Special grades are approved for pharmaceutical applications where the material is used in medical x-ray exams (it is an insoluble, inert, non-radioactive substance). The barium sulfate is more dense than the other tissues in the body making it possible to see organs and structures that cannot be seen otherwise.
On its own, barium sulphate does not decompose until after 1400C. But in the presence of silica and alumina barites decompose between 1100 and 1200 (ideal point being 1130 to 1150) with a corresponding decrease in the sulphur content. (see Metallurgical and Materials Transactions Volume 42B, August 2011)
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BARIUM and COMPOUNDS / Toxicology - Edouard Bastarache
Overview of strategies in dealing with the hazards of difficult-to-replace barium carbonate in ceramics
Barite (65.7% BaO, 34.3% SO4) is the main mineral from which barium carbonate is sourced. It is mined around the world and generally occurs in beds or as veins. It is found associated with lead ore, c...
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