... metallurgy, detergents manufacturing, soaps industry etc. Specifications:Caustic Soda Solid 99% MIN.ITEMSTANDARDNAOH:99% MIN.NA2CO3:0.9% MAX.NACL ... :0.15% MAX.FE2O3:0.005% MAX. Caustic Soda Solid 96% MIN.ITEMSTANDARDNAOH:96% MIN.NA2CO3:1.4% MAX. ... industry.Generally it is used in chemical analysis, Soap production, Paper making, Alumina production, Biodiesel, Aluminium etching, Food preparation and ...