... Soda flakes :Chemical Formula : NaOHChemical Composition :Product NameCaustic Soda flakes 96%NaOH96% minNa2CO31.4% maxNaCl2.8% maxFe2O30.01% max White ... soap industry , texile pulp fibers viscose process , etc . Storage : Should be stored in dry storerooms , separate from the normal work area ... with , such as acids , water , organohalogen compound , zinc , etc 96% Caustic Soda flakes (manufacture)