Potassium hydrogen phthalate
SIAL/P1088 - BioXtra, ≥99.95%
Synonym: Potassium phthalate monobasic; KHP; Phthalic acid monopotassium salt; Potassium biphthalate; Potassium hydrogen phthalate
CAS Number: 877-24-7
Empirical Formula (Hill Notation): C8H5KO4
Molecular Weight: 204.22
EC Number: 212-889-4
MDL Number: MFCD00013070
Linear Formula: HOOCC6H4COOK
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: P1088-100G
This image depicts SKU: P1088-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: P1088-500G
This image depicts SKU: P1088-500G
| anion traces | chloride (Cl-): <0.003% |
| sulfur compounds (as SO42-): ≤0.002% | |
| assay | ≥99.95% |
| cation traces | Al: <0.0005% |
| Ca: <0.005% | |
| Cu: <0.0005% | |
| Fe: <0.0005% | |
| Mg: <0.0005% | |
| Na: <0.005% | |
| NH4+: <0.05% | |
| Pb: <0.001% | |
| Zn: <0.0005% | |
| form | powder or crystals |
| impurities | <0.005% Insoluble matter |
| <0.005% Phosphorus (P) | |
| InChI | 1S/C8H6O4.K/c9-7(10)5-3-1 |
| InChI key | IWZKICVEHNUQTL-UHFFFAOYSA |
| mp | 295-300 °C (dec.) (lit.) |
| pH | 4 |
| product line | BioXtra |
| Quality Level | 200  |
| SMILES string | [K+].OC(=O)c1ccccc1C([O-] |
| Application: | Potassium hydrogen phthalate has been used as a substrate to assess the permeation from the extracellular (EC) to the periplasmic (PP) side through DcaP. It has also been used as one of the polyurethane materials for the characterization of polyester triol (OH). |
| Features and Benefits: | • Long-term stability • Exhibits dielectric properties |
| General description: | Potassium hydrogen phthalate (KHP) is a semi-organic salt that is a member of the alkali acid phthalate series. KHP crystals are useful in devices because of their electro-optical properties. It usually acts as a model compound due to its well-developed surface pattern on the (010) face that can be easily observed by optical microscopy. |
| Packaging: | 100, 500 g in poly bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | 387.1 °F - Pensky-Martens c |
| Flash Point(C) | 197.3 °C - Pensky-Martens c |
| Purity | ≥99.95% |
| mp | 295-300 °C (dec.) (lit.) |
| UNSPSC | 12161700 |