Items Specification Flakes/Pearls/Solid Purity 96% 99% NaCo3 1.4% Max 0.5% Max NaCl 2.8% Max 0.04% Max Fe2O3 0.008% Max 0.005% Max Surface White Flakes/Pearls/Solid Name: Caustic soda Flakes 99% / 96% NaOH Catalog: Alkali