... a fertilizer for alkaline soils. In the soil the ammonium ion is released and forms a small amount of ... fire, normal transportation.In the transportation and outdoor storage, Ammonium Sulphate should be kept away from moisture, insolation, rain ... S content2.capro grade, not become caking3.could be work as blending fertilizer or water souble fertilizer . Ammonium Sulphate Granular 21% Caprolactam Grade