... 3,Sulfur: 24%min 4,Granule size: 1-4mm Ammonium Sulphate (ZA)The primary use of ammonium sulfate is as a ... fire, normal transportation.In the transportation and outdoor storage, Ammonium Sulphate should be kept away from moisture, insolation, rain&high temperature ... be work as blending fertilizer or water souble fertilizer . Ammonium Sulphate Granular 21% Caprolactam Grade