Back فلوريد البوتاسيوم Arabic پتاسیوم فلورید AZB Fluorur de potassi Catalan Fluorid draselný Czech Kaliumfluorid Danish Kaliumfluorid German Kalia fluorido Esperanto Fluoruro de potasio Spanish پتاسیوم فلورید Persian Kaliumfluoridi Finnish
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| Names | |
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| IUPAC name
Potassium fluoride
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| Identifiers | |
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3D model (JSmol)
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| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.029.228 |
| EC Number |
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PubChem CID
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| RTECS number |
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| UNII |
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CompTox Dashboard (EPA)
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| Properties | |
| KF | |
| Molar mass | 58.0967 g/mol (anhydrous) 94.1273 g/mol (dihydrate) |
| Appearance | colourless |
| Density | 2.48 g/cm3 |
| Melting point | 858 °C (1,576 °F; 1,131 K) (anhydrous) 41 °C (dihydrate) 19.3 °C (trihydrate) |
| Boiling point | 1,502 °C (2,736 °F; 1,775 K) |
| anhydrous: 92 g/100 mL (18 °C) 102 g/100 mL (25 °C) dihydrate: 349.3 g/100 mL (18 °C) | |
| Solubility | soluble in HF insoluble in alcohol |
| −23.6·10−6 cm3/mol | |
| Structure | |
| cubic | |
| Hazards | |
| GHS labelling: | |
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| Danger | |
| H301, H311, H331[1] | |
| P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P311, P312, P321, P322, P330, P361, P363, P403+P233, P405, P501 | |
| NFPA 704 (fire diamond) | |
| Flash point | Non-flammable |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
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245 mg/kg (oral, rat)[2] |
| Related compounds | |
Other anions
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Potassium chloride Potassium bromide Potassium iodide |
Other cations
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Lithium fluoride Sodium fluoride Rubidium fluoride Caesium fluoride Francium fluoride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Potassium fluoride is the chemical compound with the formula KF. After hydrogen fluoride, KF is the primary source of the fluoride ion for applications in manufacturing and in chemistry. It is an alkali halide salt and occurs naturally as the rare mineral carobbiite. Solutions of KF will etch glass due to the formation of soluble fluorosilicates, although HF is more effective.
- ^ "Potassium Fluoride". sigmaaldrich.com. Retrieved 2018-12-20.
- ^ Chambers, Michael. "ChemIDplus - 7789-23-3 - NROKBHXJSPEDAR-UHFFFAOYSA-M - Potassium fluoride - Similar structures search, synonyms, formulas, resource links, and other chemical information". chem.sis.nlm.nih.gov.