Weifang Changda Chemical Industry Co.,Ltd. now can supply Magnesium sulfate heptahydrate. Name related: Magnesium sulfate, Magnesium sulphate, Magnesium sulfate heptahydrate, Magnesium sulfate fertilizer grade, MgSo4.7H2O, MgSo4 1.Character: White exiguous acicular or oblique-pillar crystal. Smell-less, tast-bitter. Easily efflorescent at dry air. 2.Specification: magnesium sulfate 98.5, magnesium sulfate 99.0%, magnesium sulfate 99.5%