1,ammonium sulfate:N 20.5%MIN WATER 1%MAX 2, ... grey granule or powder 3,Use: for agriculture use 1)Ammonium Sulphate 2)N Content:20.5%Min 3)Moisture:1 ... than21.021.020.5Moisture(H2O) less than0.20.31.0Free acid(H2SO4)less than0.030.050.20Iron(Fe) less than0.007 ... off-white powder, easily soluble in water. Aqueous solution appears acid. Insoluble in alcohol, acetone and ammonia, Easily deliquescent in the ...