... et High quality Caustic Soda Flakes, Pearls, Solid, mainly used in Papermaking, Soap Making, Artifical Fiber, Priting. Specification: ItemsStandardResultsNaOH FLAKES96% min.96.08%Na2CO31 ... max.0.086%Fe2O30.005% max.0.004% ItemsStandardResultsNaOH FLAKES99% min.99.20%Na2CO30.8% max.0.78%NaCl0.08% max.0 ... % Size: 0.5-1.6mm, 1.6-3mm Flakes, Pearls: packing in 25kg plastic woven bag with plastic inner.Solid ...