Ammonium sulfate , also known as ammonium sulfate is an excellent fertilizer (commonly known as ammonium sulphate as raw materials, pure product is colorless orthorhombic crystals, industrial white to pale yellow crystals. Aqueous solution of ammonium sulfate was acid, insoluble in alcohol, acetone and ammonia; moisture absorption, moisture absorption after consolidated into blocks; heating to 513 DEG C completely decomposed into ammonia, nitrogen, sulfur dioxide and water; with alkali role will release ammonia, chloride and barium solution reaction to produce barium sulfate precipitation. Ammonium sulfate is mainly used as fertilizer, which is suitable for all kinds of soil and crops, and can be used in textile, leather, medicine and so on.