1.lower Nacl% 2.stable quality, long term supply at competitive price ... glass-manufacturing, metallurgy, paper-manufacturing, textile, dyeing, synthetic detergent, soap, daily-use Chemical-industry, daily-use glass industry, washing powder ... powder Solubility: Easily soluble in water Purity: 99% -99.2%min. Chlorides: 0.7% max. Fe: 0.004% max ... under cover in a cool, dry place. 99.2% soda ash light