Product Name: Potassium Nitrate Electronic Grade CAS NO. : 7757-79-1 Molecular Formula: KNO3 Molecular Weight: 101.1 Melt Point (�°C): 334 Bulk density: 2.109 Appearance: White powder crystal Specification Purity Min 99.92% Water insoluble matter Max0.003% H2O Max. 0.05% Sulphate (SO4) 0.005% Max 0.003% Carbonate (CO3) 0.01% Max