... chemical material, widely used in building material, chemical, light industry, metallurgy, medicine, food processing and persons' ... consist of glass industry (42%), chemical industry (12%), light industry (12%), civil industry (7%), metallurgy industry (5%), medicine ... ash products The quality targets of soda ash(light)ItemsUnitTargetsTest resultExcellentFirst classQualifiedNa2CO3 ≥%99.2098.8098.0099. ...