-Professional manufacturer -We have SGS, BV Certificate -Purity: 99% -Free samples -Packing: ... , printing and dyeing, soap, dyes, textiles, pharmaceuticals, glass, enamel, metal products industrial, also are main raw materials of batteries, leather, organic ... 99% Caustic Soda/Sodium hydroxide Pearls(SGS,BV,CIQ,REACH)Manufacturer;CAS No:1310-73-2;water treatment/oil refining industry