Potassium fluoride
SIGALD/402931 - ACS reagent, ≥99.0%
CAS Number: 7789-23-3
Empirical Formula (Hill Notation): FK
Molecular Weight: 58.10
EC Number: 232-151-5
MDL Number: MFCD00011398
Linear Formula: KF
Product Type: Chemical
| anion traces | chloride (Cl-): ≤0.005% |
| sulfate (SO42-): ≤0.005% | |
| assay | ≥99.0% |
| cation traces | Fe: ≤0.001% |
| heavy metals: ≤0.001% (by ICP) | |
| Na: ≤0.2% | |
| form | crystalline powder |
| powder, crystals or chunks | |
| grade | ACS reagent |
| impurities | ≤0.01 meq/g Titr. base |
| ≤0.03 meq/g Titr. acid | |
| ≤0.1% K2SiF6 | |
| InChI | 1S/FH.K/h1H;/q;+1/p-1 |
| InChI key | NROKBHXJSPEDAR-UHFFFAOYSA |
| mp | 858 °C (lit.) |
| pH | 8-9 (20 °C, 50 g/L) |
| Quality Level | 200 ![]() |
| SMILES string | [F-].[K+] |
| vapor pressure | 1.3 hPa ( 885 °C) |
| 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. |
| Packaging: | 12 kg in poly drum |
| Packaging: | 5, 100, 500 g in poly bottle |
| 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 | 26-45 |
| RIDADR | UN 1812 6.1 / PGIII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.0% |
| mp | 858 °C (lit.) |
| UNSPSC | 12352302 |



