molecular formula: BaSO4
CAS: 13462-86-7
Appearance:
White crystal powder
Properties:
White crystalloid powder. The relative density 240, melting point ℃ (12 ℃ decomposition's 15). Insoluble in water, ethanol, acid and treatments.
Use:
Analytics reagents, also used in the electronics, instruments, metallurgy, pharmacy industry.
Details:
|
Test item |
Specification |
|
Reagent grade |
Pharmaceutical grade |
|
Appearance |
Conform |
Conform |
|
Hydrochloric acid soluble substance /% |
≤0.15 |
≤0.25 |
|
Calcination weightlessness /% |
≤1.5 |
≤1.5 |
|
Chloride (Cl)/% |
≤0.005 |
≤0.02 |
|
Soluble sulfate (SO4)/% |
≤0.005 |
≤0.01 |
|
Nitrogen compounds (N)/% |
≤0.0005 |
≤0.001 |
|
Ferric (Fe) /% |
≤0.0005 |
≤0.001 |
|
Arsenic (As)/% |
≤0.0001 |
≤0.001 |
|
Soluble BeiYan (Ba)/% |
≤0.0001 |
≤0.0005 |
|
Heavy metal (Pb)/% |
≤0.0005 |
≤0.001 |
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