Analysis Item

Standard

Results

Conclusion

Appearance

White or slightly yellow crystalline powder with slight odor

White or slightly yellow crystalline powder with slight odor

Qualified

Assay

≥98.0%

98.78%

Qualified

Loss on drying

≤0.5%

0.36%

Qualified

Crude Ash

≤0.5%

0.14%

Qualified

Rotation

-29.4～-32.8°

-30.0°

Qualified

pH

5.5~7.0

6.10

Qualified

Conclusion

Conform with GB/T25735-2010