... for 851 ° C,Soluble in water 2. Specification(light) ItemsUnit ExcellentFirst classQualifiedNa2CO3 ≥%99.2098.8098.00NaCl ≤%0 ... used in glass production widely used in building material, chemical, light industry, metallurgy, medicine, food processing and people' ... .Soda ash consumption consist of glass industry (42%), chemical industry (12%), light industry (12%), civil industry (7%), metallurgy industry ...