Item

Standard

Analysis data

Appearance

White  powder

Conforms

Solubility (1.0g/20ml H2O)

Clear   Colorless

Conforms

Specific rotation(a)D20
(C=1 , H2O)

+7.5º to +8.5º

+8.20º

Assay

98.0-102.0%

99.26%

Melting Point (ºC)

200ºC to 210 ºC

203.7

Heavy metals(Pb)

Not more than 20ppm

＜20ppm

Chloride(C1)

Not more than 0.02%

＜0.02%

Iron(Fe)

Not more than 10ppm

＜10ppm

Arsenic(As2O3)

Not more than 4ppm

<4ppm

Moisture

Not more than 1.0%

0.40%

Residue on ignition

Not more than 0.2%

0.09%

Total plate count

Not more than 1,000cfu/g

Conforms

Yeast and mold

Not more than 100cfu/g

Conforms

PH

5.0-6.0

5.76

Conclusion

The product conforms to the standard