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Potassium fluoride information


Potassium fluoride
Names
IUPAC name
Potassium fluoride
Identifiers
CAS Number
  • 7789-23-3 (anhydrous) checkY
  • 13455-21-5 (dihydrate) checkY
3D model (JSmol)
  • Interactive image
ChEMBL
  • ChEMBL1644027 ☒N
ChemSpider
  • 23006 checkY
ECHA InfoCard 100.029.228 Edit this at Wikidata
EC Number
  • 232-151-5
PubChem CID
  • 522689
RTECS number
  • TT0700000
UNII
  • 9082WG1G3F checkY
  • 95R1D12HEH (dihydrate) checkY
CompTox Dashboard (EPA)
  • DTXSID8031940 Edit this at Wikidata
InChI
  • InChI=1S/FH.K/h1H;/q;+1/p-1 checkY
    Key: NROKBHXJSPEDAR-UHFFFAOYSA-M checkY
  • InChI=1S/FH.K/h1H;/q;+1/p-1
    Key: NROKBHXJSPEDAR-REWHXWOFAI
  • Key: NROKBHXJSPEDAR-UHFFFAOYSA-M
SMILES
  • [F-].[K+]
Properties
Chemical formula
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)
Solubility in water
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
Magnetic susceptibility (χ)
−23.6·10−6 cm3/mol
Structure
Crystal structure
cubic
Hazards
GHS labelling:
Pictograms
GHS06: Toxic
Signal word
Danger
Hazard statements
H301, H311, H331[1]
Precautionary statements
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)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
3
0
0
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
LD50 (median dose)
245 mg/kg (oral, rat)[2]
Related compounds
Other anions
Potassium chloride
Potassium bromide
Potassium iodide
Other cations
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).
☒N verify (what is checkY☒N ?)
Infobox references

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.

  1. ^ "Potassium Fluoride". sigmaaldrich.com. Retrieved 2018-12-20.
  2. ^ 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.

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Potassium fluoride

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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...

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Lithium fluoride

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lithium fluoride alone does not absorb hydrogen fluoride to form a bifluoride salt. Fluorine is produced by the electrolysis of molten potassium bifluoride...

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Hydrogen fluoride

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Hydrogen fluoride (fluorane) is an inorganic compound with chemical formula HF. It is a very poisonous, colorless gas or liquid that dissolves in water...

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Sulfuryl fluoride

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sulfuryl fluoride has been conveniently prepared from 1,1'-sulfonyldiimidazole, in the presence of potassium fluoride and acid. Sulfuryl fluoride is unreactive...

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Potassium bifluoride

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Potassium bifluoride is the inorganic compound with the formula K[HF2]. This colourless salt consists of the potassium cation (K+) and the bifluoride anion...

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Potassium nickel fluoride

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Potassium nickel fluoride may refer to any of the following complex salts: Potassium tetrafluoronickelate, K2NiF4 Potassium hexafluoronickelate, K2NiF6...

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Caesium fluoride

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+ 2 HF → 2 CsF + H2O + CO2 CsF is more soluble than sodium fluoride or potassium fluoride in organic solvents. It is available in its anhydrous form,...

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Ionic crystal

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halides, including potassium fluoride (KF), potassium chloride (KCl), potassium bromide (KBr), potassium iodide (KI), sodium fluoride (NaF). Sodium chloride...

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Potassium aluminium fluoride

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Potassium aluminium fluoride (PAF, chemical formula KAlF4) is an inorganic compound. This compound is used as flux in the smelting of secondary aluminium...

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Sodium fluoride

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Sodium fluoride (NaF) is an inorganic compound with the formula NaF. It is a colorless or white solid that is readily soluble in water. It is used in trace...

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Potassium

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reaction of potassium fluoride with calcium carbide was also used to produce potassium. 2 KF + CaC2 → 2 K + CaF2 + 2 C Reagent-grade potassium metal costs...

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Chlorine

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It will react analogously with hexafluoroacetone, (CF3)2CO, with a potassium fluoride catalyst to produce heptafluoroisopropyl hypochlorite, (CF3)2CFOCl;...

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Sulfuryl chloride fluoride

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chloride fluoride is employed as a solvent for highly oxidizing compounds. The laboratory-scale synthesis begins with the preparation of potassium fluorosulfite:...

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Finkelstein reaction

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5-bromovaleric acid to the iodide: EtO2C(CH2)4Br + NaI → EtO2C(CH2)4I + NaBr Potassium fluoride is used for the conversion of chlorocarbons into fluorocarbons. Such...

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Potassium bromide

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Potassium bromide (KBr) is a salt, widely used as an anticonvulsant and a sedative in the late 19th and early 20th centuries, with over-the-counter use...

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Ammonium fluoride

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Ammonium fluoride is the inorganic compound with the formula NH4F. It crystallizes as small colourless prisms, having a sharp saline taste, and is highly...

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Potassium chloride

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Potassium chloride (KCl, or potassium salt) is a metal halide salt composed of potassium and chlorine. It is odorless and has a white or colorless vitreous...

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Sulfur difluoride

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be generated by the reaction of sulfur dichloride and potassium fluoride or mercury(II) fluoride at low pressures: SCl2 + 2 KF → SF2 + 2 KCl SCl2 + HgF2...

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Xenon hexafluoride

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salt, (NO) 2XeF 8. The sodium and potassium salts are formed directly from sodium fluoride and potassium fluoride: 2 NaF + XeF 6 → Na 2XeF 8 2 KF + XeF...

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Oxygen difluoride

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known oxygen fluorides. Oxygen difluoride was first reported in 1929; it was obtained by the electrolysis of molten potassium fluoride and hydrofluoric...

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History of fluorine

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making elemental fluorine by electrolyzing a mixture of potassium fluoride and hydrogen fluoride. Large-scale production and use of fluorine began during...

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Zirconium tetrafluoride

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with other fluorides. The most prominent is potassium hexafluorozironate, formed by fusion of potassium fluoride and zirconium tetrafluoride: ZrF4 + 2 KF...

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Potassium fluorosilicate

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co-precipitation. For example, K2[MnF6] in (40%) hydrofluoric acid with potassium fluoride can be mixed with SiO2 dissolved in (40%) hydrofluoric acid to co-precipitate...

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Dimethylcarbamoyl fluoride

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Dimethylcarbamoyl fluoride is a chemical compound that can be produced by fluorination of dimethylcarbamoyl chloride with potassium fluoride. It's a colorless...

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Water fluoridation

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controlled adjustment of fluoride to a public water supply solely to reduce tooth decay. Fluoridated water contains fluoride at a level that is effective...

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Fluorochemical industry

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fluoride (a flux), sodium fluoride (water fluoridation), potassium fluoride (flux), and ammonium fluoride (various). Sodium and potassium bifluorides are significant...

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Niobium

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water and either precipitated by the addition of potassium fluoride to produce a potassium fluoride complex, or precipitated with ammonia as the pentoxide:...

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Halex process

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chloride and anhydrous potassium fluoride. Typical solvents are dimethylsulfoxide, dimethylformamide, and sulfolane. Potassium chloride is generated in...

Word Count : 265

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