HPLC Buffer Salts
POTASSIUM HYDROGEN PHTHALATE For HPLC
KHP; Phthalic acid monopotassium salt, Potassium biphthalate; Potassium phthalate monobasic
- Article code
- 05371
- CAS
- 877-24-7
- Grade
- For HPLC
- Purity
- 99.5%
- Category
- HPLC Buffer Salts
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Properties
- 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
Product information
| 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 |
Packaging options
- 500 g (00500)
Details
POTASSIUM HYDROGEN PHTHALATE For HPLC KHP; Phthalic acid monopotassium salt, Potassium biphthalate; Potassium phthalate monobasic MSDS DE EN FR KO PT ES TH TR COAs Packings 500 g (00500) Print friendly version Article No. 05371 Grade For HPLC Purity 99.5% CAS No. 877-24-7 Molecular Formula C 8 H 5 KO 4 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 : at 340 nm Amax : at 350 nm Amax : at 500 nm Amax : Safety Information and Hazard Symbols Safety Statement: 22-24/25 Revision Date: 20-Feb-2026 Home Lab Chemicals HPLC Buffer Salts POTASSIUM HYDROGEN PHTHALATE