Item Specification
Sodium sulphate(Na2SO4) ≥ 99%
Water insoluble substance ≤ 0.05%
Calcium and Magnsium content (As Mg) ≤ 0.15%
Chloride(As Cl) ≤ 0.35%
Iron(Fe) ≤ 0.002%
Humidity ≤ 0.10%
Whiteness ≥ 85%