... quality,professional service monthly exports 3000mt Caustic Soda Flakes, pearl, solid, NaOH, one of our key product to export.CAS NO.1310-73-2HS ... : 2815.11.00UN NO.1823CAUSTIC SODA FLAKES 99% NaOH 99.1%Na2CO30.56%NaCl0.07%Fe2O30.005% CAUSTIC SODA SOLID 99%NaOH 99.1 ... in China. )Any news, pls feel free to contact us, CAUSTIC SODA FLAKES