Items

Specifications

Results

Appearance

White crystalline powder or granular

Conform

Assay   ,%              

98.5~100.5

99.4

Specific   optical rotation[a]_D²⁵

+20.0°~ +21.5°

+20.6°

Transmittance,%                

≥98.0

99.0

Loss on   drying ,%          

≤0.50

0.35

Heavy   metals , ppm        

≤15

<10

Residue   on ignition,%    

≤0.1

0.06

Chloride   ,%            

19.0~19.6

19.2

Sulfate(SO₄^-2),%        

≤0.03

< 0.02

Iron,%

≤0.001

<0.001

Arsenic(As₂o₃),   %

≤0.0001

<0.0001

Ammonium,%            

≤0.02

< 0.02

Conclusion:This product conforms to   requirements of FCCIV standard.