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Parameter
Analysis Contents | Analysis Standard |
Characteristics | White or almost White crystals Crystalline Powder |
Identification | Positive Reaction |
Melting Point | About 190°C |
PH(with 5% water solution) | 2.1-2.6 |
Clarity Of Solution | Clear |
Colour Of Solution | ≤BY7 |
Copper | ≤5ppm |
Heavy Metals | ≤10ppm |
Mercury | ≤0.1mg/kg |
Lead | ≤2mg/kg |
Arsenic | ≤3ppm |
Oxalic Acid | ≤0.2% |
Iron | ≤2ppm |
Impurity E | ≤0.2% |
Loss of Drying | ≤0.4% |
Sulphate Ash(Residue On Ignition) | ≤0.1% |
Specific Optical Rotation | +20.5 to +21.5 |
Residual Solvents | Pass |
Assay | 99.0%-100.5% |
Why choose NIRANBIO's Ascorbic Acid VC?
1. We offer a high quality product, yet for a low price;
2. We offer flexible payment terms, pre-shipment inspection and a full insurance system;
| 3. High quality with a high purity rate. |
Parameter
Analysis Contents | Analysis Standard |
Characteristics | White or almost White crystals Crystalline Powder |
Identification | Positive Reaction |
Melting Point | About 190°C |
PH(with 5% water solution) | 2.1-2.6 |
Clarity Of Solution | Clear |
Colour Of Solution | ≤BY7 |
Copper | ≤5ppm |
Heavy Metals | ≤10ppm |
Mercury | ≤0.1mg/kg |
Lead | ≤2mg/kg |
Arsenic | ≤3ppm |
Oxalic Acid | ≤0.2% |
Iron | ≤2ppm |
Impurity E | ≤0.2% |
Loss of Drying | ≤0.4% |
Sulphate Ash(Residue On Ignition) | ≤0.1% |
Specific Optical Rotation | +20.5 to +21.5 |
Residual Solvents | Pass |
Assay | 99.0%-100.5% |
Why choose NIRANBIO's Ascorbic Acid VC?
1. We offer a high quality product, yet for a low price;
2. We offer flexible payment terms, pre-shipment inspection and a full insurance system;
| 3. High quality with a high purity rate. |
