... ,soap,rubber,medicine,food,etc. 3)MOQ:20/T Flakes caustic soda,NaOHItems Specification Flakes/Pearls/Solid Purity 96%99%NaCo3 1.4% Max ... % Max Fe2O3 0.008% Max 0.005% Max Surface White Flakes/Pearls/Solid Uses:Synthetical detergence, textile, paper making,printing,dyeing ... & Paint ,Acid & Salts, Rubber Accelerators & Antioxidants,Water Treatment Chemicals. 99%Flakes caustic soda NaOH