... in Caustic Soda Flakes(99%,98%,and 96%) ,Caustic Soda Solid (99%98%,96%), and Caustic Soda Pearl (99%,98%,96%), Our monthly ... 96%Flake/pearl/solid 98%Flake/pearl/solid 99%NaOH96% Min.98% Min.99% Min.Na2CO31% Max.0.5% Max.0.4 ... % Max.0.005% Max.0.001% Max Caustic Soda Solid 99% Factory -- TOYOTA partner