Potassium fluoride
ALDRICH/449148 - anhydrous, powder, ≥99.9% trace metals basis
Synonym: Potassium monofluoride; Potassium monofluoride (KF)
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
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: 449148-5G
This image depicts SKU: 449148-5G
| assay | ≥99.9% trace metals basis |
| form | powder |
| grade | anhydrous |
| impurities | ≤1000.0 ppm Trace Metal Analysis |
| InChI | 1S/FH.K/h1H;/q;+1/p-1 |
| InChI key | NROKBHXJSPEDAR-UHFFFAOYSA |
| mp | 858 °C (lit.) |
| Quality Level | 100  |
| SMILES string | [F-].[K+] |
| 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 can be used:• To fabricate CIGS thin films solar cells. Efficiency increased by up to 21.7% after KF postdeposition treatment. This was due to the formation of a K-containing layer on the CIGS surface, which resulted in increased surface reactivity due to the formation of a bilayer structure in which a K—In—Se species covers the CIGSe compound. • To fabricate 2D vanadium carbide MXene for supercapacitor electrodes. • To synthesize sulfonyl fluoride through electrochemical oxidative coupling. • As an electrolyte additive for Li-ion batteries. • As a catalyst for ring-opening fluorination of cyclic thioethers. • To synthesize solid base catalysts, KF/Ca−Mg−Al hydrotalcite for the production of Biodiesel via transesterification reactions. |
| General description: | Potassium fluoride is a white crystalline solid that is highly soluble in water. It is a strong base widely used in the field of catalysis, polymer synthesis, and semiconductor devices. KF has a relatively high melting point. It dissolves well in hydrofluoric acid. However, KF is insoluble in alcohol. |
| Packaging: | 5, 25 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 | ≥99.9% trace metals basis |
| mp | 858 °C (lit.) |
| UNSPSC | 12352302 |