... . 2.widely used in metallurgy,petroleum,chemicals,textile,paper making Caustic Soda Flake:Specs: ITEMSTANDARDSodium≥99.0Sodium≤ 0.8Oxidize≤ 0.05Oxidize the Iron ... ,textile,paper making,printing and dyeing,soap industry, pharmacy and food industry,metal hardwares etc.Packing: Flakes/Pearls: 1)in 25kg ... into each 12kg carton. solid: in 200kg/400kg iron drums. Caustic Soda Flake