1.white crystals, soluble in water 2.purity: 99.8%min 3.best quality, competitive price Specifications: KNO3 content: 99.8%min Analysis: ( for reference only) Moisture 0.1%max Carbonate 0.01%max Water insoluble 0.02%max Chlorides 0.003%max Fe 0.003%max Uses:1.Used for the manufacturing of match head and pyrotechnic compositions, dynamite, black powder,fertilizer, glass, ceramic glazes, candle ...