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Main Usages :tech grade :dental care, skin care, cleaners/detergents, agrochemicals, construction chemicals, inks/paints/dyes, metal finishing, paper auxiliaries, photo chemicals, textile auxiliaries, water treatmentfood grade :diet food, herb and spice blends, meat productsStandard Specifications :food grade
Properties Value Properties Value
Appearance White crystal powders Appearance White or yellowish crystal powders
Assay % 98.0-102.0 min Assay % 98.00 min
Loss on Dry % 0.30 max Loss on dry % 0.50 max
Reducing substances % 0.50 max Reducing substances % 0.70 max
PH 6.2~7.8 PH 6.2~7.8
Sulfate % 0.02 max Sulfate % 0.02 max
Pb, ppm 1 max Pb, ppm 2 max
Arsenic salt, ppm 2 max Arsenic salt, ppm 2 max
Heavy metals, ppm 10 max Heavy metals, ppm 10 max