| Appearance: | Powder |
|---|---|
| Grade Standard: | Reagent Grade |
| Transport Package: | Paper Box |
| Specification: | kg |
| Trademark: | Peng test organism |
| Origin: | Xuzhou, China |
| Samples: |
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| Customization: |
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Audited Supplier | Point of melting: | 189-192 °C(lit.) |
| Density of density: | 1.494±0.06 g/cm3(Predicted) |
| Storage conditions: | Sealed in dry,Room Temperature |
| Degree of solubility: | H2O: 0.1 M, 20 °C, clear, colorless |
| form: | White powder crystallization |
| PH value: | 4.0-5.5 (20ºC, 0.1M in H2O) |
| Acid-base indicator discoloration ph range: | 7.0 - 8.2 |
| Coefficient of acidity (pKa): | 7.6(at 25ºC) |
| Solubility of water: | almost transparency |
| Specification properties | Specification of standard | Result of Analysis |
| Appearance | White crystalline powder | White crystalline powder |
| Assay | 99.0-101.0% | 99.57 |
| Water Content | ≤0.5% | 0.15 |
| loss on drying | ≤1% | 0.36 |
| Melt point | 189-192ºC | 190ºC |
| solubility1.0M aqueous | , | , |
| PH(1.0M aqueous) | 3.0-5.0 | 4.5 |
| (Pb) | ≤0.0005 | 0.0002 |
| /260nm (Ultraviolet absorbance) |
≤0.05 | 0.03 |
| /280nm (Ultraviolet absorbance) |
≤0.03 | 0.01 |
| :25ºC, Storage : room temperature25ºC |
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