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60238

Sigma-Aldrich

Potassium fluoride

BioUltra, ≥99.5% (F)

Sinonimo/i:

KF

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About This Item

Formula condensata:
KF
Numero CAS:
7789-23-3
Peso molecolare:
58.10
Beilstein:
3902818
Numero MDL:
MFCD00011398
Codice UNSPSC:
12352302
ID PubChem:
57651737
NACRES:
NA.25

Grado

reagent grade

Nome Commerciale

BioUltra

Saggio

≥99.5% (F)

Stato

solid

Impurezze

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)

Punto di fusione

858 °C (lit.)

Solubilità

H2O: 1 M at 20 °C, clear, colorless

Anioni in tracce

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

Cationi in tracce

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

Assorbanza UV

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

Stringa SMILE

[F-].[K+]

InChI

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

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Applicazioni

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.

Altre note

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

Pittogrammi

CorrosionSkull and crossbones
GHS05,GHS06

Avvertenze

Danger

Indicazioni di pericolo

H301 + H311 + H331 - H318

Classi di pericolo

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

Codice della classe di stoccaggio

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

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number
BCCG4451
BCCF5011
BCCD4909
BCCC9122
BCCC3922

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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
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
Lirong Wen et al.
Journal of combinatorial chemistry, 11(5), 799-805 (2009-07-28)
A series of new functionalized thiochromeno[2,3-b]pyridine derivatives have been synthesized via a sequence of Knoevenagel condensation, Michael addition, cyclization, and intramolecular nucleophilic substitution, which is first catalyzed by KF/neutral Al(2)O(3) cooperated with PEG 6000 under microwave irradiation. Experimental results indicated
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