... 2100 2) for agriculture use 3) Nitrogen: 21%min 4) 25kg/bag, 50kg/bag Ammonium sulfate, inorganic compounds, tasted colorless trapezius crystals, ... in textile, leather, medicine, etc.3. Eat by industrial ammonium sulfate ammonium sulfate, join after joining distilled water dissolved metal except arsenic agent ... preliminary separation and purification product of a protein, etc. Ammonium Sulfate 21%