... ignition ≤%0.801.001.300.19 2.Uses: Soda ash also called sodium carbonate,and it is an important chemical material, widely ... in building material, chemical, light industry, metallurgy, medicine, food processing and persons' daily life. Up to now, our national soda ash ... industry (12%), civil industry (7%), metallurgy industry (5%), medicine industry (2%) and other industries(20%). Soda Ash light