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60240

Potassium fluoride

purum p.a., ≥99.0% (F)

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About This Item

Linear Formula:
KF
CAS Number:
7789-23-3
Molecular Weight:
58.10
NACRES:
NA.21
UNSPSC Code:
12352302
PubChem Substance ID:
329758837
EC Number:
232-151-5
Beilstein/REAXYS Number:
3902818
MDL number:
MFCD00011398
Assay:
≥99.0% (F)
Form:
powder or crystals
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vapor pressure

1.3 hPa ( 885 °C)

Quality Level

200

grade

purum p.a.

assay

≥99.0% (F)

form

powder or crystals

pH

8-9 (20 °C, 50 g/L)

mp

858 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤1000 mg/kg

cation traces

Ca: ≤50 mg/kg, Cd: ≤50 mg/kg, Co: ≤50 mg/kg, Cu: ≤50 mg/kg, Fe: ≤50 mg/kg, Na: ≤5000 mg/kg, Ni: ≤50 mg/kg, Pb: ≤50 mg/kg, Zn: ≤50 mg/kg

SMILES string

[F-].[K+]

InChI

1S/FH.K/h1H;/q;+1/p-1

InChI key

NROKBHXJSPEDAR-UHFFFAOYSA-M

General description

Potassium fluoride (KF) on activated alumina is a highly reactive catalyst (basic in nature) for various organic reactions. High reactivity is due to the formation of potassium hexafluoroaluminiate, potassium hydroxide and potassium aluminate on the interaction of its fluoride ion with alumina. Celite coated with potassium fluoride participates in various hydrogen-bond-mediated reactions. Potassium fluoride on basic alumina in acetonitrile has been employed for the ultrasound-assisted deprotection of tert-butyldimethylsilyl ethers of phenols. Neutralization reaction of hydrofluoric acid with KOH or postassium carbonate affords KF.

Application

Potassium fluoride may be employed for doping the natural calcium phosphate (NP) for high yield synthesis of activated alkenes.
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.

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pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP0079
BCCN7864
BCCN4301
BCCL8227
BCCM4773

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Characterization of the actual catalytic agent in potassium fluoride on activated alumina systems.
Weinstock LM, et al.
Tetrahedron Letters, 27(33), 3845-3848 (1986)
Selective desilylation of tert-butyldimethylsilyl ethers of phenols using potassium fluoride-alumina and ultrasound.
Schmittling EA and Sawyer JS.
Tetrahedron Letters, 32(49), 7207-7210 (1991)
Natural phosphate doped with potassium fluoride and modified with sodium nitrate: Efficient catalysts for the Knoevenagel condensation.
Sebti S, et al.
Tetrahedron Letters, 43(10), 1813-1815 (2002)
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Global Trade Item Number

SKUGTIN
60240-250G04061832659893
60240-1KG04061826714843