Potassium phthalate monobasic
SIAL/56982 - suitable for HPLC, LiChropur™, 99.5-100.5% (HPLC)
Synonym: KHP; Phthalic acid monopotassium salt; Potassium biphthalate; Potassium hydrogen phthalate
CAS Number: 877-24-7
Empirical Formula (Hill Notation): C8H5KO4
Molecular Weight: 204.22
MDL Number: MFCD00013070
Linear Formula: HOOCC6H4COOK
Product Type: Chemical
λ | 10 % in H2O (hot) |
assay | 99.5-100.5% (HPLC) |
form | solid |
InChI | 1S/C8H6O4.K/c9-7(10)5-3-1 |
InChI key | IWZKICVEHNUQTL-UHFFFAOYSA |
loss | ≤0.5% loss on drying |
mp | 295-300 °C (dec.) (lit.) |
pH | 3.0-5.0 |
quality | LiChropur™ |
SMILES string | [K+].OC(=O)c1ccccc1C([O-] |
solubility | H2O: 10 applications on large gels, clear, colorless (hot) |
technique(s) | HPLC: suitable |
UV absorption | λ: 330 nm Amax: ≤0.05 |
λ: 340 nm Amax: ≤0.03 | |
λ: 350 nm Amax: ≤0.02 | |
λ: 500 nm Amax: ≤0.02 |
Legal Information: | LiChropur is a trademark of Merck KGaA, Darmstadt, Germany |
WGK Germany | WGK 3 |
Flash Point(F) | 387.1 °F - Pensky-Martens c |
Flash Point(C) | 197.3 °C - Pensky-Martens c |
Purity | 99.5-100.5% (HPLC) |
mp | 295-300 °C (dec.) (lit.) |
UNSPSC | 41116105 |