... in Papermaking, Soap Making, Artifical Fiber, Priting e High quality Caustic Soda Flakes, Pearls, Solid, mainly used in Papermaking, Soap Making, Artifical ... .Specification: ItemsStandardResultsNaOH FLAKES96% min.96.08%Na2CO31.3% max.0.98%NaCl0.13% max.0.086%Fe2O30.005% max.0.004 ... 250kg new steel drums.Loading: 25MT for one 20ft. container. Caustic Soda Flake