Industrial Grade

Pharmaceutical Grade

Photo Grade

Appearance:white crystal

Appearance:white crystal

Appearance:white crystal

Assay: ≥ 99%

Assay: ≥ 99.2%

Assay: ≥ 99.5%

Chloride: ≤ 0.6%

Chloride: ≤ 0.6%

Chloride: ≤ 0.25%

Sulfate: ≤ 200ppm

Sulfate: ≤ 200ppm

Volatile: ≤ 0.5%

Loss on drying: ≤ 3%

Loss on drying: ≤ 3%

Bromate: ≤ 100ppm

Heavy metal: ≤ 5 ppm

Heavy metal: ≤ 5 ppm

Mercury: ≤ 3 ppm

Arsen: ≤ 4 ppm

Arsenic: ≤ 4 ppm

Iodide: ≤ 50ppm

Minor elements ≤ 0.5ppm

Minor elements: ≤ 0.5 ppm

Minor elements: ≤ 0.5 ppm

PH: 6.0--8.0

PH: 6.0--8.0

PH: 6.0--8.0

Usage: Applied to the production of film, medicine, spice,dyestuff, etc.