Potassium sulfate is a kind of inorganic salt, chemical formula is K ₂ SO ₄. The potassium content was 50% ~ 52% commonly, The Sulphur content is about 17- 18%. Potassium sulfate is a good water-soluble potash fertilizer with low hygroscopicity, not easy to agglomerate, Potassium sulphate had a advantage for the cash crops that avoid chlorine and like potassium, such as tobacco, grape, beet, tea tree, potato, flax and various fruit trees, etc.
Potassium sulphate is a neutral, physiologically acidic fertilizer suitable for a variety of soils (excluding flooded soils) and crops. Potassium ions can be directly absorbed by crops and soil colloid after being applied to the soil. It is more effective when applied to cruciferous crops and other crops requiring more sulfur in sulfur-deficient soil.
Potassium sulphate was widely used in biochemical test of serum protein, catalyst for Kjeldding nitrogen, preparation of other potassium salt, chemical fertilizer, medicine, preparation of glass, alum etc.