Magnesium Sulphate

Test item

Specification

Reagent grade

Pharmaceutical grade

Appearance

Conform

Conform

Assay /%

≥99.0

≥99.0

Clarify degrees test

Conform

Conform

Water insoluble /%

≤0.005

≤0.01

Chloride (Cl)/%

≤0.0005

≤0.001

Sodium (Na)/%

≤0.005

≤0.05

Calcium (Ca) /%

≤0.02

≤0.05

Manganese  (Mn)/%

≤0.001

≤0.005

Ferric (Fe)/%

≤0.0005

≤0.001

Arsenic  (As) /%

≤0.0001

≤0.0002

Zinc (Zn)/%

≤0.001

≤0.002

Heavy metal (Pb)/%

≤0.0005

≤0.001