Magnesium Sulphate Heptahydrate is white crystais, soluble in water easily.Used in Aqriculture, Fertilizer, Feed Additives and Industry,etc.... Our Magnesium Sulphate Heptahydrate is a cost effective product and of superior quality. It is widely used in Agriculture and Gardening Industry to correct magnesium deficiency in the soil. Our Magnesium Sulphate is highly soluble and is generally applied to Potted Plants, to Magnesium-Hungry Crops such as Tomatoes, Roses, Potatoes, etc.