barium sulfate
Properties:
White crystalloid powder. The relative density 240, melting point °C (12 °C 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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Barium sulfate anhydrous precipitation grade 1250