... : White granule, easily soluble in water. Aqueous solution appears acid. Insoluble in alcohol, acetone and ammonia. Easily deliquescent in the air ... ,3. making compound fertilizerStorage: Kept in dry and ventilating place, avoid moisture, water, rain and fire. Avoid shipment with acid, alkali class ... 00005----Heavy metal(pb)% ≤0.005----Insoluble substance in water %≤0.01---- water soluble fertilizers