Item

White, crystalline powder or colorless crystals. Freely soluble in water, practically insoluble in ethanol.

Confirmed

Acidity or Alkalinity

Comply with the standard

Confirmed

Appearance of solution

Clear and colorless

Confirmed

Iodides

No blue color is abserved

Confirmed

Bromides

Comply with the standard

Confirmed

Ferro cyanides

Comply with the standard

Confirmed

Nitrites

≤0.01

0.002%

Phosphates

≤0.0025%

0.0002%

Sulfates

≤0.02%

0.015%

Aluminum

≤0.00002%

0.000015%

Barium

Comply with the standard

Confirmed

Potassium

≤0.05%

0.04%

Iron

≤0.0002%

0.0001%

Magnesiumandalkaline-earth metals Calculated as Ca

≤0.01%

0.001%

Arsenic

≤0.0001%

0.00005%

Heavy metals

(pb)

≤ 5ppm

0.0003%

Loss on drying

≤0.5%

0.4%

Bacterial end toxins

≤ 5 I.U.

< 5 I.U.

Assay

99.0~100.5%

100%