... inspection 4. Large stock,stable supply High Quality 99% Flake Caustic Soda 1.Caustic soda Flakes/Pearls/Solid2 ... .Purity: 99%,96%3.High quality for SGS /CIQ inspection4 ... SODA ,Specialize in FLAKES/PEARLS/SOLID 96%,98%,99%, which established in 1996,engaged in this field ... Flake/pearl/solid 98%Flake/pearl/solid 99%NaOH96% Min.98% Min.99% Min.Na2CO31% Max.0.5% ...