Appearance White crystal Purity 98 %min Water insoluble 0.05%max Fe 0.005%max Chloride (Cl) 0.005%max Sulphate (SO4) 0.01%max Heavy metal (as Pb) 0.005%max PH value 6.7-7.3 we have pharmaceutical grade,food grade and industrial grade
pharmaceutical, food additive, water treatment,printing and dyeing,electroplate