Items

Standard

Analysis data

Appearance

white crystals or crystalline powder

Conforms

State of solution

Not less than 98.0%

99.0%

Specific Rotation
（C=10,2N HCL）

 -14.5º--15.5º

-15.25º

Assay

99.0%-101.0%

99.4%

Loss on drying

Not more than0.2%

0.07%

Residue on Ignition

Not more than0.20%

0.09%

Heavy Metals(Pb)

Not more than10ppm 

＜10ppm

PH

5.2-6.2

5.82

Chloride ( Cl)

Not more than0.02%  

＜0.02%

Sulfate (SO4)

Not more than0.02%

＜0.02%

Iron( Fe)

Not more than10ppm  

＜10ppm

Arsenic

Not more than 2ppm

＜2ppm

Ammonium(NH4)

Not more than 0.02%

＜0.02%

EE%

Not less than 99.0%

99.6%

Conclusion

The product is according with standard