caustic soda flakes and pearls Sodium hydroxide 98% and 99% CAS NO:1310 ... with standard of GB 20 caustic soda flakes and pearls 98% and 99%name of Commodity: CAUSTIC SODA ... 209-2006. name of Commodity: CAUSTIC SODA FLAKES and pearls Specification:99%Standard: GB 209-2006 Inspection Pattern: LotTest ... 209-2006.1,character The solid Sodium hydroxide is white solid or pieces,its proportion is 2.13,show ...