Purity: 99.8% Appearance: White powder PH Value: 7.5-9.5 Nitrogen: 46% min. Moisture:0.3% max. Biuret:1% max. Granulation:1 - 4 mm 90-94 % min. Melting Point: 131-135 Degrees Celsius Color: Pure White Pilled Radiation: Non - Radioactive Free Ammonia:160pxt ppm max. Prilled, Treated against caking, 100% free from harmful substances