Vasa Pharmachem Pvt. Ltd. Supplies Magnesium Sulphate. Vasa Pharmachem Pvt. Ltd. Has been awarded ISO 9001:2000 certification. Magnesium Sulphate is colourless to white crystals. Magnesium Sulphate is soluble in water and glycerol and it is practically insoluble in ethanol [95 %]. Magnesium Sulphate has saline taste with cooling and bitter taste.