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Merck

449148

Potassium fluoride

anhydrous, powder, ≥99.9% trace metals basis

Sinónimos:

Potassium monofluoride, Potassium monofluoride (KF)

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Fórmula lineal:
KF
Número CAS:
7789-23-3
Peso molecular:
58.10
UNSPSC Code:
12352302
NACRES:
NA.23
PubChem Substance ID:
24868456
EC Number:
232-151-5
Beilstein/REAXYS Number:
3902818
MDL number:
MFCD00011398
Assay:
≥99.9% trace metals basis
Grade:
anhydrous
Form:
powder
Solubility:
water: soluble (923 g/l at 18 °C (64 °F))

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InChI key

NROKBHXJSPEDAR-UHFFFAOYSA-M

InChI

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

SMILES string

[F-].[K+]

grade

anhydrous

assay

≥99.9% trace metals basis

form

powder

reaction suitability

core: potassium

impurities

≤1000.0 ppm Trace Metal Analysis

mp

858 °C (lit.)

Quality Level

100

solubility

water: soluble (923 g/l at 18 °C (64 °F))

cation traces

Cr: 1.6 ppm, Cs: 7.3 ppm, Cu: 0 ppm, Fe: 7.9 ppm, Li: 0.4 ppm, Mg: 0.3 ppm, Na: 514.2 ppm, Rb: 44.4 ppm

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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 can be used:
  • To fabricate CIGS thin films solar cells. Efficiency increased by up to 21.7% after KF postdeposition treatment. This was due to the formation of a K-containing layer on the CIGS surface, which resulted in increased surface reactivity due to the formation of a bilayer structure in which a K—In—Se species covers the CIGSe compound.
  • To fabricate 2D vanadium carbide MXene for supercapacitor electrodes.
  • To synthesize sulfonyl fluoride through electrochemical oxidative coupling.
  • As an electrolyte additive for Li-ion batteries.
  • As a catalyst for ring-opening fluorination of cyclic thioethers.
  • To synthesize solid base catalysts, KF/Ca−Mg−Al hydrotalcite for the production of Biodiesel via transesterification reactions.

General description

Potassium fluoride is a white crystalline solid that is highly soluble in water. It is a strong base widely used in the field of catalysis, polymer synthesis, and semiconductor devices. KF has a relatively high melting point. It dissolves well in hydrofluoric acid. However, KF is insoluble in alcohol.

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

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

Clase de almacenamiento

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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Certificados de análisis (COA)

Lot/Batch Number
MKCP5346
MKCM0710
MKCJ9689
MKCH6742
MKCD1760

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Indian Journal of Physics, 70B, 311-311 (1996)
Macromolecules, 29, 8391-8391 (1996)
Eur. J. Solid State Inorg. Chem., 33, 809-809 (1996)
Mingming Fan et al.
Bioresource technology, 104, 447-450 (2011-12-16)
Transesterification of soybean oil with methanol was carried out in the presence of CaO-MgO and KF-modified CaO-MgO catalysts at atmospheric pressure. While the methyl ester yield for the CaO-MgO catalyst with a ratio of 8:2 (CaO:MgO) was 63.6%, it was
E Gershonov et al.
The Journal of organic chemistry, 74(1), 329-338 (2008-12-05)
A facile solvent-free hydrolysis (chemical destruction) of the warfare agents VX (O-ethyl S-2-(diisopropylamino)ethyl methylphosphonothioate), GB (O-isopropyl methylphosphonofluoridate or sarin), and HD (2,2'-dichloroethyl sulfide or sulfur mustard) upon reaction with various solid-supported fluoride reagents is described. These solid reagents include different
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