Product: Caustic soda flakes 98. 5% MIN Specs: NaOH: 99%( 0. 5% more or less) NaCl: 0. 2% max Na2CO3: 1. 0% max Fe2O3: 0. 01% max Packing: 25kg net in PP woven bags with two-layer PE inner linling Use: In the soap and refined oil line Product: Caustic soda flake 96% min NaOH: 96% Min Other specs, packing, use same as the above