Barium sulfate is chemically stable. Almost insoluble in water, ethanol and acid. Soluble in hot concentrated sulfuric acid, easy to agglomerate when drying. At 600 ℃, it can be reduced to barium sulfide with carbon.
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SPECIFICATION
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Apperance
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White Powder
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D50 (μm)
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max
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36
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BaSO4 content (%)
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90
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Volatile matter (105℃)
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max
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0.2
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Whiteness (%)
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min
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96.5
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Oil Absorption g/100g
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10~12
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Ph Value
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7±0.5
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Specific Gravity g/cm3
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4.2
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Water Soluble Matters (%)
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max
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0.06
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Refraction Index
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1.64
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Iron Fe (%)
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max
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0.003
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Electrical Conductivity (Us/cm)
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max
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150
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