製品紹介
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Item | STANDARD | |
Characteristics | A white crystalline or crystammine powder acid taste and slightly agreeable. | |
Specific rotation [a]D20° | +30.5 °~ +32.5° | |
Chloride (Cl) | 0.02% max | |
Ammonium (NH4) | 0.02% max | |
Sulfate (SO4) | 0.02% max | |
Iron (Fe) | 10ppm max | |
Heavy metals (Pb) | 10ppm max | |
Cadmium | 1ppm max | |
Mercury | 0.1ppm max | |
Arsenic (AS2O3) | 1ppm max | |
Other amino acids | Conform to starndard. | |
Loss on drying | 0.5% max | |
Residue on ignition(sulfated) | 0.10% max | |
Assay: | 98.5% to 100.5% | |
PH | 3.0 to3.5 |
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