ITEMS

SPECIFICATIONS

RESULTS

Appearance

White crystals or crystalline powder

White crystalline powder

Indentification

IR or NMR

Positive

Specfic rotation

-21.5°~ -23.5°

-22.52°

pH

2.5 ~2.9

2.68

Water content

≤1.0%

0.05%

Residue on ignition

≤0.5%

0.05%

Assay

98.0~102.0%

99.35%

Heavy metals

≤ 10PPM

<10PPM

Arsenic

≤ 1PPM

<1PPM

Chloride

                  17.0% ~ 18.5%

17.88%

Lead

≤ 3PPM

<3PPM

Mercury

≤ 0.1PPM

<0.1PPM

Cadmium

≤ 1PPM

<1PPM

Conclusion: It conforms to the IN-HOUSE STANDARD.