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Model No. : | feed grade |
---|---|
Brand Name : | GENIUSLAND |
Product description
Items | Standard | Results |
Property | White or light yellow powder Stable in light, heat and air, easily dissolves in acid | Pass |
Identification
| (1) Should be Positive | Positive |
(2) Wavelength Max. Absorbance should be 261-265nm | 263nm | |
(1)Should be Positive | Positive | |
Assay (Ascorbic Acid) | ≥35.0% | 35.6% |
Loss on drying | ≤10.0% | 4.07% |
Arsenic | ≤0.0005% | <0.0005% |
Lead | ≤0.003% | <0.003% |
Conclusion | The above product conforms to GB/T19422-2003 |
Items | Standard | Results |
Appearance | White crystalline powder | White crystalline powder |
Identification | Positive | Positive |
Clarity of solution | Clear | Clear |
Color of solution | ≤BY7 | <BY7 |
Assay | 99.0-100.5% | 99.6% |
Loss on drying | ≤0.4% | 0.05% |
Residue on ignition | ≤0.1% | 0.03% |
Sulphate ash | ≤0.1% | 0.03% |
Specific rotation | +20.5°~+21.5° | +20.88° |
PH (with 2% water solution) | 2.4-2.8 | 2.60 |
PH (with 5% water solution) | 2.1-2.6 | 2.34 |
Melting range | About 190℃ | 191℃ |
Heavy metals | ≤3ppm | <3ppm |
Iron | ≤2ppm | <2ppm |
Copper | ≤5ppm | <5ppm |
Impurity E | ≤0.2% | <0.2% |
Arsenic | ≤1ppm | <1ppm |
According to BP2013, E300, USP36, FCC8, EP7 |
Items | Standard | Results |
Appearance | White to slightly yellow crystalline powder | White crystalline powder |
Identification | Positive | Positive |
Clarity of solution | Clear, ≤BY6 | Clear |
Assay | 99.0-101.0% | 100.1% |
Loss on drying | ≤0.25% | 0.04% |
Sulphate | ≤150ppm | <150ppm |
Specific rotation | +103°~+106° | +105.2° |
PH (10%, W/V) | 7.0-8.0 | 7.7 |
Heavy metals (as Pb ) | ≤10ppm | <10ppm |
Iron | ≤2ppm | <2ppm |
Arsenic | ≤3ppm | <3ppm |
Lead | ≤2ppm | <2ppm |
According to BP2012, E301, USP35, FCC8 |
Items | Standard | Results |
Appearance | White or yellowish granular powder | Pass |
Assay | 96.0-98.0% | 97.6% |
Loss on drying | ≤0.20% | 0.15% |
Residue on ignition | ≤0.1% | 0.04% |
Heavy metals (Pb) | ≤20ppm | <20ppm |
Particle size | ≥95% through 20 mesh | 100.0% |
≤25% through 100 mesh | 3.8% | |
According to Enterprise Standards |
Items | Standard | Results |
Appearance | White to slightly yellow granular | Pass |
Identification | Positive | Pass |
Clarity of solution | Clear, ≤BY6 | Clear, <BY6 |
Assay | 96.0-98.0% | 96.9% |
Loss on drying | ≤0.20% | 0.13% |
Heavy metals (Pb) | ≤10ppm | <10ppm |
Arsenic | ≤3ppm | <3ppm |
Particle size | ≥95% through 20 mesh | 100.0% |
≤25% through 100 mesh | 24.03% | |
According to Enterprise Standards |
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