... provided the best price and quality. Caustic soda flake is white spherical grain which is one of ... chemical materials, and the high purity caustic soda flake is the upgrade product of the solid caustic ... soda .Testing result:NaOH: 99.4%, Na2CO3:0.27%, NaCl:0.01%, Fe2O3 ... equipments, thus to produce the grainy caustic soda flake with high quality, even particles, stable quality without ...