Item

Standard

Analysis data

Specific rotation[a]D 20

-9.8° to -11.2°

-10.4°

Chloride (Cl)

Not more than 400ppm

≤400ppm

Sulfate (SO4)

Not more than 400ppm

≤400ppm

Iron (Fe)

Not more than 30ppm

≤10ppm

Heavy metal(Pb)

Not more than 15ppm

≤15ppm

Loss on drying

Not more than 0.30%

0.15%

Residue  on  ignition

Not more than 0.40%

0.10%

Assay

98.5 to101.5%

99.3%

Inspector:

陈君   王玲

Manager:

彭秀明

Conclusion

The product is according with standard.