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Barium Sulfate

Formula: BaSO4
Alternate Names: Calk, Calk-Stone, Barite, Barytes, BaSO4, Barium Sulphate

OxideAnalysisFormula
BaO65.76%1.000
SO334.24
Oxide Weight153.30
Formula Weight233.12
If this formula is not unified correctly please contact us.
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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By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Barium Sulfate" descrip="" searchkey="Calk, Calk-Stone, Barite, Barytes, BaSO4, Barium Sulphate" loi="0.00" casnumber="8054-35-1"> <oxides> <oxide symbol="BaO" name="Barium Oxide, Baria" status="" percent="65.760" tolerance=""/> </oxides> <volatiles> <volatile symbol="SO3" name="Sulfur Trioxide" percent="34.240" tolerance=""/> </volatiles> </material>


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