Item | Specification |
Appearance | White or brown powder |
Content(Dry basis) | ≥98.5% |
[α] D20 Specific rotation | +18.0°-+21.5° |
Dry weightlessness | ≤1.0% |
Burn draff | ≤0.30% |
Ammonium salt | ≤0.04% |
Heavy metal(as pb) | ≤0.003% |
Arsenic | ≤0.0002% |
PH(10g/dl) | 5.0-6.0 |