... supply Product : magnesium Sulphate heptahydrate 10034-99-8Formula: MgSO4·7H2OAppearance: white crystals ,bitter, soluble in water easily, lose one of molecular ... in feed additive, aquiculture, fertilizer, currying, porcelain, printing, porcelain, fireproof materials and feed additives of magnesium salt, etc.Packing: in 25kg plastic ...