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Merck
CN

60238

Potassium fluoride

BioUltra, ≥99.5% (F)

Synonym(s):

KF

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About This Item

Linear Formula:
KF
CAS Number:
Molecular Weight:
58.10
UNSPSC Code:
12352302
NACRES:
NA.25
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
3902818
Assay:
≥99.5% (F)
Grade:
reagent grade
Form:
solid
Solubility:
H2O: 1 M at 20 °C, clear, colorless
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grade

reagent grade

Quality Level

product line

BioUltra

assay

≥99.5% (F)

form

solid

impurities

insoluble matter, passes filter test, ≤0.01% free acid (as HF), ≤0.01% free alkali (as KOH), ≤0.1% potassium fluoro silicate (K2SiF6)

pH

7.0-8.5 (25 °C, 1 M in H2O)

mp

858 °C (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

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

cation traces

Al: ≤5 mg/kg, As: ≤3 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤2000 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.01, λ: 280 nm Amax: 0.01

SMILES string

[F-].[K+]

InChI

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

InChI key

NROKBHXJSPEDAR-UHFFFAOYSA-M

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 used in thermodynamic analysis of DNA-ligand binding and studies on the structural stability of proteins and peptides.

Other Notes

Inhibitor of pyrophosphatase, hence prevents loss of ATP by hydrolytic cleavage of the pyrophosphate bond in the assay of amidophosphoribosyltransferase; Strongly inhibits polypeptide chain initiation in the reticulocyte lysate cell-free system


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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

pictograms

Skull and crossbonesCorrosion

Storage Class

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

Regulatory Information

危险化学品

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J C O'Rourke et al.
The Journal of biological chemistry, 250(9), 3443-3450 (1975-05-20)
KF (30 mM) strongly inhibits polypeptide chain initiation in the reticulocyte lysate cell-free system.. Chain elongation is partially inhibited but proceeds to a significant extent with little initiation of new chains. Polysome breakdown is incomplete after incubations as long as
Amidophosphoribosyltransferase (chicken liver).
J M Lewis et al.
Methods in enzymology, 51, 171-178 (1978-01-01)
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



Global Trade Item Number

SKUGTIN
60238-100G-F04061832659596
60238-500G-F04061832659817