... for civil. In the industrial soda ash, mainly is the light industry, building materials, chemical industry, about two-thirds; The ... 0.2 tons. Chemical industry for making sodium silicate, sodium dichromate, sodium nitrate, sodium fluoride and sodium bicarbonate, sodium borate, trisodium phosphate, etc. Metallurgical industry ... hot and humid, change food hysteresis, jiedu acid role. sodium carbonate