... , Australia, Africa, Middle East, Thailand, Vietnam, Indonesia, factory supply Product : magnesium Sulphate heptahydrate 10034-99-8Formula: MgSO4·7H2OAppearance: white crystals ,bitter ... , currying, porcelain, printing, porcelain, fireproof materials and feed additives of magnesium salt, etc.Packing: in 25kg plastic woven bags.