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60240

Potassium fluoride

purum p.a., ≥99.0% (F)

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250 G

$188.00

1 KG

$357.00

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About This Item

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

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vapor pressure

1.3 hPa ( 885 °C)

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

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This Item
602396023860238
Potassium fluoride purum p.a., ≥99.0% (F)

Sigma-Aldrich

60240

Potassium fluoride

Potassium fluoride puriss. p.a., ≥99.0% (F)

Sigma-Aldrich

60239

Potassium fluoride

Potassium fluoride BioUltra, ≥99.5% (F)

Sigma-Aldrich

60238

Potassium fluoride

Potassium fluoride BioUltra, ≥99.5% (F)

Sigma-Aldrich

60238

Potassium fluoride

form

powder or crystals

form

powder or crystals

form

solid

form

solid

assay

≥99.0% (F)

assay

≥99.0% (F)

assay

≥99.5% (F)

assay

≥99.5% (F)

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

grade

purum p.a.

grade

puriss. p.a.

grade

-

grade

-

anion traces

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

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg

pH

8-9 (20 °C, 50 g/L)

pH

-

pH

7.0-8.5 (25 °C, 1 M in H2O)

pH

7.0-8.5 (25 °C, 1 M in H2O)

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.[1] Celite coated with potassium fluoride participates in various hydrogen-bond-mediated reactions.[2] Potassium fluoride on basic alumina in acetonitrile has been employed for the ultrasound-assisted deprotection of tert-butyldimethylsilyl ethers of phenols.[3] Neutralization reaction of hydrofluoric acid with KOH or postassium carbonate affords KF.[4]

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.
Potassium fluoride may be employed for doping the natural calcium phosphate (NP) for high yield synthesis of activated alkenes.[5]

Pictograms

CorrosionSkull and crossbones
GHS05,GHS06

Signal Word

Danger

Hazard Statements

H301 + H311 + H331 - H318

Hazard Classifications

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

Storage Class Code

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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)
Potassium fluoride on celite. A versatile reagent for C-, N-, O-, and S-alkylations.
Ando T and Yamawaki J.
Chemistry Letters (Jpn), 1, 45-46 (1979)
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)
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)
Eagleson M.
Concise Encyclopedia Chemistry, 887-887 (1994)

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