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Index | Specifications | ||||||
Appearance | White or light brown powder,odorless or slight special odor | ||||||
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 | ||||||





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