... , medicine, leather, wood preservative, textile, plating, ferment, fertilizer. Standard (GB535-1995) IndexPremium GradeAppearancewhite crystal without any impurity ... It easily decompose poisonous smoke when heated. As fertilizer must attention Ammonium sulphate are acidic fertilizers. It ... by soil hardened, and should apply with organic fertilizer. Please see the following pictures for kind perusal. ...