Properties: Molecular formula:MgSO₄ 7H₂O, Molecular weight:246.48, white or colorless crystal, odorless.

2, Technical index  98% 95% different specifications
3, Uses: there are no toxic matter, thus it is widely used in drug, fertilizer, leather, printing, dyeing, pigment, ceramic, explosive, match, fireproof material, magnesium salt and feed additive.

It can also be used as fertilizer grade, industry grade, feed grade, food grade and medicine grade