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POTASSIUM HYDROGEN PHTHALATE For HPLC KHP; Phthalic acid monopotassium salt, Potassium biphthalate; Potassium phthalate monobasic
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Description
| Article No. | 05371 | Grade | For HPLC |
| Purity | 99.5% | CAS No. | 877-24-7 |
| Molecular Formula | C8H5KO4 | Molecular Weight | 204.22 |
| H.S. Code | 2917.3990 | Shelf Life | 60 Months |
Physical Properties
| Physical state at 20 °C | Solid | Colour | White crystalline | ||||
| Odour | Odorless | pH value | 3.8 – 4.0 (5% aq. sol.) | ||||
| Melting point/ Freezing point [°C] | 295 – 300 °C | Density [g/cm3] | 1.64 | ||||
| Solubility in water [% weight] | 80 g/L @ 20°C | ||||||
Specifications
| Appearance | White crystalline powder | Assay | Min 99.5% |
| Filter test | In accordance | Solubility (100 mg/mL in water) | Complete, colourless |
| pH (5% solution in water) | 3.5 – 5.0 | UV absorbance (10% solution in water) | |
| at 330 nm | Amax : <0.05 | at 340 nm | Amax : <0.03 |
| at 350 nm | Amax : <0.02 | at 500 nm | Amax : <0.02 |
Safety Information and Hazard Symbols
Safety Statement: 22-24/25
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