... . MgSO4.7H2O Magnesium Sulfate HeptahydrateMolecular formaula: MgSO47H2O molecular weight: 246.46 Charateristics: no-color o white crystal, bitter or salty taste ... thin cotton cloth, silk, stuffing of kapok products, grass-making, fertilizer, China, paint, match, explosive and fireproof materials and so on ... plactic lining, net weight 25kg per bag Magnesium Sulphate Heptahydrate Fertilizer