... etc. 2. Special feature: High purity (the content of NaOH can reach 99%), even particles, few impurity, ... company introduced the advanced pelleting technique, the equipments of the nickel pipe and stainless steel pipe, which ... 1.0-1.6mm (diameter) 5. Quality index: Testing result: NaOH: 99.4%, Na2CO3:0.27%, NaCl: ... 0.010%, Fe2O3:0.002% Testing result of the Food Grade: NaOH: 99.1%, Na2CO3:0 ...