colorless crystal or white crystalline powder, mainly used as the fertilizer, and it is suitable for every kind of soid and crop Ammonium Sulphate is colorless crystal or white crystalline powder, it is soluble in water easily. Ammonium Sulphate is mainly used as a fertilizer in agriculture, and it is suitable for everry kind soil and crop, and it is also used in metallurgy, medicine, leather, ...