Potassium fluoride
SIGMA/60238 - BioUltra, ≥99.5% (F)
Synonym: KF
CAS Number: 7789-23-3
Empirical Formula (Hill Notation): FK
Molecular Weight: 58.10
MDL Number: MFCD00011398
Linear Formula: KF
Product Type: Chemical
| λ | 1 M in H2O |
| anion traces | chloride (Cl-): ≤50 mg/kg |
| sulfate (SO42-): ≤100 mg/kg | |
| assay | ≥99.5% (F) |
| cation traces | Al: ≤5 mg/kg |
| As: ≤3 mg/kg | |
| Ba: ≤5 mg/kg | |
| Bi: ≤5 mg/kg | |
| Ca: ≤10 mg/kg | |
| Cd: ≤5 mg/kg | |
| Co: ≤5 mg/kg | |
| Cr: ≤5 mg/kg | |
| Cu: ≤5 mg/kg | |
| Fe: ≤5 mg/kg | |
| Li: ≤5 mg/kg | |
| Mg: ≤5 mg/kg | |
| Mn: ≤5 mg/kg | |
| Mo: ≤5 mg/kg | |
| Na: ≤2000 mg/kg | |
| Ni: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| Sr: ≤5 mg/kg | |
| Zn: ≤5 mg/kg | |
| form | solid |
| impurities | insoluble matter, passes filter test |
| ≤0.01% free acid (as HF) | |
| ≤0.01% free alkali (as KOH) | |
| ≤0.1% potassium fluoro silicate (K2SiF6) | |
| InChI | 1S/FH.K/h1H;/q;+1/p-1 |
| InChI key | NROKBHXJSPEDAR-UHFFFAOYSA |
| mp | 858 °C (lit.) |
| pH | 7.0-8.5 (25 °C, 1 M in H2O) |
| product line | BioUltra |
| Quality Level | 200  |
| SMILES string | [F-].[K+] |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| UV absorption | λ: 260 nm Amax: 0.01 |
| λ: 280 nm Amax: 0.01 |
| Application: | A versatile fluoride ion source used in a study of ion-specific swelling and de-swelling of ampholytic polymer gels, in the room temperature oxidation of noble metals in HF, and in the measurement of electronic polarizabilities of ions in polymers of alkali halides. |
| Application: | Potassium fluoride may be used in thermodynamic analysis of DNA-ligand binding and studies on the structural stability of proteins and peptides. |
| Other Notes: | Inhibitor of pyrophosphatase, hence prevents loss of ATP by hydrolytic cleavage of the pyrophosphate bond in the assay of amidophosphoribosyltransf |
| Symbol |   GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H301 + H311 + H331 - H318 |
| Precautionary statements | P261 - P280 - P301 + P310 - P302 + P352 + P312 - P304 + P340 + P311 - P305 + P351 + P338 |
| Hazard Codes | T |
| Risk Statements | 23/24/25 |
| Safety Statements | 36/37-45 |
| RIDADR | UN 1812 6.1 / PGIII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.5% (F) |
| mp | 858 °C (lit.) |
| UNSPSC | 12352302 |