... : 2.1109, Melting Point :333°C. While heated up to as high as 400°C, it will decompose and release oxygen ... nitrogen oxide. Dissolved in water(0°C,13.3g/100gH2O;30°C,45.8g/100H2O;100°C,246.0g/100gH2O),soluble in liquid ammonia ... SO4),% ≤0.010.005Water content,% ≤0.10.08K2O,% ≥4646.1N,% ≥13.513.51Clarity TestQualifiedQualifiedApperanceClorless Crystal PowderClorless Crystal Powder Potassium Nitrate