... Papermaking, Soap Making, Artifical Fiber, Priting e High quality Caustic Soda Flakes, Pearls, Solid, mainly used in Papermaking, Soap Making, ... 086%Fe2O30.005% max.0.004% ItemsStandardResultsNaOH FLAKES99% min.99.20%Na2CO30.8% max.0.78%NaCl0.08% max ... .0.076%Fe2O30.005% max.0.0045%Size: 0.5-1.6mm, 1.6-3mmFlakes, Pearls: packing in 25kg ... drums.Loading: 25MT for one 20ft. container. Caustic Soda Flake