Indicator:GB 1918-1998 Molecular formula:KNO3 Molecular weight:101.10 Property: Colorless and transparent rhombic or diamond-shaped crystal white powder, soluble in water, liquid Nitrogen and glycerin, insoluble in water-free ethanol and ether.Use:Mainly used in fireworks, gunpowder, matches, fuses, candles, tobacco, color picture tubes, drugs, chemical reagents, catalysts, ceramic glazes, glass, ...