... Sodium hydroxide, flakes,pearl ,solid, 99%min 96%mincompetitive price, good quality,professional service monthly exports 3000mt Sodium hydroxide, Caustic Soda Flakes, pearl, solid, NaOH ... CODE: 2815.11.00UN NO.1823CAUSTIC SODA FLAKES 99% NaOH 99.1%Na2CO30.56%NaCl0.07%Fe2O30 ... .005% CAUSTIC SODA SOLID 99%NaOH 99.1%Na2CO30.8%NaCl0.07%Fe2O30. ... feel free to contact us, manufactuer sodium hydroxide