Magnesium Sulfate Mono/Hepta Synonymy Magnesium Sulphate M.Formula MgSO4 CAS No. 10034-99-8 Magnesium sulfate specification Test/Property Specification Appearance White crystal or acicular Assay(MgSO4 7H2O) 99% Min MgSO4 86% Min MgO 28% Min Mg 9.5% Min Iron (Fe) 15ppm Max Arsenic (As) 2ppm Max Lead (Pb) 6ppm Chloride (Cl) 0.015% pH 5.0 To 9.5 pH scale Magnesium sulfate Use Fertilizer for crops Printing and dyeing,pigment for chinaware Fireproof material for industry Others Handling/Storage/Toxicity Handling No special precautions necessary if used correctly. Storage Sealed, in cool and dry place Toxicity Non toxic Package 25kgs or 50lbs pp woven bag. 1000-1300kgs Tote. Or as customer’s requested.