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Magnesium sulfate anhydrous

Magnesium sulfate anhydrous

Moloecular formula: MgSO₄
Molecular weight: 120.37
CAS NO:7487-88-9
Standard: maximum assay of impurities is in %

Item	Analytically pure-AR	High pure
Assay	≥99.0%	≥98.0%
Water insoluble matter	≤0.005	≤0.01
Free acid (H₂SO₄)	≤0.05	——
Chloride (Cl)	≤0.002	≤0.002
Phosphate (PO₄)	≤0.005	——
Calcium (Ca)	≤0.05	≤0.05
Iron (Fe)	≤0.001	≤0.001
Arsenic (As)	≤0.0002	≤0.001
Heavy metal (Pb)	≤0.001	≤0.001

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