Potassium fluoride

Base Information

• Chemical Name: Potassium fluoride
• CAS No.: 7789-23-3
• Deprecated CAS: 165892-23-9,59217-74-2,2018280-07-2,59217-74-2
• Molecular Formula: FK
• Molecular Weight: 58.0967
• Hs Code.: 2826.19
• European Community (EC) Number: 232-151-5
• UN Number: 1812
• UNII: 9082WG1G3F
• DSSTox Substance ID: DTXSID8031940
• Nikkaji Number: J43.932K
• Wikipedia: Potassium fluoride,Potassium_fluoride
• Wikidata: Q422426
• ChEMBL ID: CHEMBL1644027
• Mol file: 7789-23-3.mol

Synonyms:Potassium fluoride

Chemical Property of Potassium fluoride

Chemical Property:

• Appearance/Colour: white powder or crystals with a sharp saline taste
• Vapor Pressure: 922mmHg at 25°C
• Melting Point: 858 °C(lit.)
• Refractive Index: 1.363
• Boiling Point: 1505 °C
• Flash Point: 1505°C
• PSA: 0.00000
• Density: 2.48 g/cm³
• LogP: -2.99600
• Storage Temp.: Store at RT.
• Sensitive.: Hygroscopic
• Solubility.: H2O: 1 M at 20 °C, clear, colorless
• Water Solubility.: 92.3 g/100 mL (18 ºC)
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 57.96210965
• Heavy Atom Count: 2
• Complexity: 2
• Transport DOT Label: Poison

Purity/Quality:

99% ^*data from raw suppliers

Potassium fluoride ^*data from reagent suppliers

Safty Information:

• Pictogram(s): T
• Hazard Codes: T
• Statements: 25-23/24/25
• Safety Statements: 45-26-36/37

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Other Classes -> Fluorides, Inorganic
• Canonical SMILES: [F-].[K+]
• Uses: Anhydrous Potassium fluoride is used in organic synthesis as a catalyst for various reactions, or to introduce fluorine into organic molecules. For example, fluoro compounds can be prepared by replacing labile chlorine atoms by fluorine atoms, as in the manufacture of sodium fluoroacetate, a rat poison. The nucleophilic strength of F? and the solubility of KF in aprotic organic solvents may be improved by using crown ethers. The “naked” fluoride ion obtained is an efficient fluorinating agent. ▼▲ Industry Application Role/benefit Organic synthesis Preparation of various organic fluoride Fluorinating agent/replaces other halide ions like chlorine, bromine etc. Chemical manufacture Manufacture of polyurethanes and alkyl benzenes Catalyst/promote the reaction rate Manufacture of pesticides and insecticides Fluorinating agent; ingredient Manufacture of potassium bifluoride Raw material Metallurgy Soldering Soldering fluxes/help to remove oxide film Tin plating Plating composition/source of fluoride Glass Etching of glass Glass etching composition; source of fluoride Others Food and wood preservative Source of fluoride Absorption of hf and moisture Adsorbent/anhydrous potassium fluoride has hydroscopicity Complexometric titration of tantalum Masking agent Extraction of tantalum from ore Precipitator/reacts with fluorotantalic acid to precipitate potassium fluorotantalate Potassium fluoride is used in metal finishing, batteries, coatings and photographic chemicals. It is utilized for the study of ion-specific swelling and de-swelling of ampholytic polymer gels as well as in the measurement of electronic polarizabilities of ions in polymers of alkali halides. It finds application in the electronic industry as a metal surface treatment product. It is used as a preservative, a food additive, a catalyzer and a water absorbing agent. In the Finkelstein reaction, it is actively involved in the conversion of chlorocarbons to fluorocarbons using polar solvents like dimethyl formamide and ethylene glycol.

Technology Process of Potassium fluoride

There total 178 articles about Potassium fluoride which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

potassium bromide (7558-02-3,7758-02-3) → potassium fluoride (7789-23-3) + hydrogen bromide (10035-10-6,12258-64-9)

Guidance literature:

With hydrogen fluoride; during dissolving at 14-18 °C;

Reference yield:

fluorine (7782-41-4) + potassium hydroxide → potassium fluoride (7789-23-3) + ozone (10028-15-6)

Guidance literature:

In melt; reaction by use of molten KOH in a F2 atmosphere;; formation of a KF layer beside O3;;

Reference yield:

2Cs(1+)*K(1+)*AgF6(3-)=Cs2KAgF6 → potassium fluoride (7789-23-3) + cesium tetrafluoro argentate (III) (72275-06-0) + cesium fluoride (13400-13-0)

Guidance literature:

In neat (no solvent); decomposition;;

upstream raw materials:

hydrogen fluoride

potassium

potassium hydroxide

pentafluoroethanesulfonyl fluoride

Downstream raw materials:

lithium fluoride

potassium bromide

sodium chloride

potassium fluorosulfonate

Refernces

• 1、 Abakumov, Artem M.,Rossell, Marta D.,Alekseeva, Anastasiya M.,Vassiliev, Sergey Yu.,Mudrezova, Svetlana N.,Van Tendeloo, Gustaaf,Antipov, Evgeny V.. "Phase transitions in K3AlF6". . p. 421 - 428. Retrieved 2006.
• 2、 Werker, Melanie,Dolfus, Benedikt,Ruschewitz, Uwe. "Two anhydrous salts of tetrafluoroterephthalic acid (H2tF-BDC): K2tF-BDC and Rb2tF-BDC". . p. 2487 - 2492. Retrieved 2013.
• 3、 Atuchin,Isaenko,Kesler,Lin,Molokeev,Yelisseyev,Zhurkov. "Exploration on anion ordering, optical properties and electronic structure in K3WO3F3 elpasolite". . p. 159 - 164. Retrieved 2012.
• 4、 Li, Hong,Jia, Zhihong,Shi, Chunshan. "The mild hydrothermal synthesis of complex fluorides of AZnF3 (A = Na, K)". . p. 1106 - 1107. Retrieved 2000.
• 5、 Hoffmeister, Manfred,Schleysing, Ruediger,Loesch, Hansjuergen. "Molecular Beam Study of Steric Effects in the Reaction K + HF (v = 1, j = 2) -> KF + H". . p. 5441 - 5445. Retrieved 1987.
• 6、 Zheng, Chao,Holden, Daniel,Zheng, Ming-Qiang,Pracitto, Richard,Wilcox, Kyle C.,Lindemann, Marcel,Felchner, Zachary,Zhang, Li,Tong, Jie,Fowles, Krista,Finnema, Sjoerd J.,Nabulsi, Nabeel,Carson, Richard E.,Huang, Yiyun,Cai, Zhengxin. "A metabolically stable PET tracer for imaging synaptic vesicle protein 2A: synthesis and preclinical characterization of [18F]SDM-16". . p. 1482 - 1496. Retrieved 2021/11/16.
• 7、 -. "Compositions, methods, and systems for the synthesis and use of imaging agents". Page/Page column 92. . Retrieved 2016/08/17.