Description\t<\/span>White or off-white powder<\/p>

clarity      Transparent and Clarity<\/p>

Loss on drying   ≤ 1.0 %<\/p>

Alkalinity PH       6.0~8.0<\/p>

Chloride and bromide\t<\/span>≤ 0.02 %<\/p>

Iodate and iodine\t<\/span>≤ 0.002 %<\/p>

Water insoluble       0.002% <\/p>

Reducing substance       qualified<\/p>

Total nitrogen content    <0.002%<\/p>

Arsenic salt   ≤0.00002<\/p>

Phosphate    <0.001%<\/p>

Barium         <0.001% <\/p>

Sulfate\t<\/span>     ≤0.005 %<\/p>

Sodium\t<\/span>     ≤ 0.10 %<\/p>

Magnesium  ≤ 0.002 %<\/p>

Iron\t<\/span>         ≤ 0.0003 %<\/p>

Calcium    ≤ 0.002 %<\/p>

Heavy metal   ≤ 0.0005 %<\/p>

Purity       ≥ 99.5％<\/p>