... soda 2.iron exchange membrane technology 3.Gurantee purity on 99% 4.BV,SGS,CIQ passecaustic soda1. PropertiesProduct name: Caustic ... 96%Flake/pearl/solid 98%Flake/pearl/solid 99%NaOH96% Min.98% Min.99% Min.Na2CO31% Max.0.5% Max.0 ... for CAUSTIC SODA ,Specialize in FLAKES/PEARLS/SOLID 96%,99%, which established in 1996,engaged in this field for ... above 300-400 tons each day. caustic soda flakes 99%