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60238

Potassium fluoride

Name: Potassium fluoride
Brand: SIGMA
Price: 81.1 EUR

BioUltra, ≥99.5% (F)

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Taglio della confezione	SKU	Disponibilità	Prezzo
100 g		Per informazioni sulla disponibilità, contatta il Servizio Clienti.	81,10 €
500 g		Per informazioni sulla disponibilità, contatta il Servizio Clienti.	290,00 €

Informazioni su questo articolo

Formula condensata:

Numero CAS:

7789-23-3

Peso molecolare:

58.10

UNSPSC Code:

12352302

NACRES:

NA.25

PubChem Substance ID:

57651737

MDL number:

MFCD00011398

Beilstein/REAXYS Number:

3902818

Assay:

≥99.5% (F)

Grade:

reagent grade

Form:

solid

Solubility:

H₂O: 1 M at 20 °C, clear, colorless

81,10 €

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Proprietà

grade

reagent grade

Quality Segment

200

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 (SO₄^2-): ≤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 A_max: 0.01, λ: 280 nm A_max: 0.01

SMILES string

[F-].[K+]

InChI

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

InChI key

NROKBHXJSPEDAR-UHFFFAOYSA-M

Descrizione

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[1]; Strongly inhibits polypeptide chain initiation in the reticulocyte lysate cell-free system[2]

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Questo articolo	402931	402931
Sigma-Aldrich 60238 Potassium fluoride	Sigma-Aldrich 402931 Potassium fluoride	Sigma-Aldrich 402931 Potassium fluoride
form solid	form crystalline powder, powder, crystals or chunks	form crystalline powder, powder, crystals or chunks
solubility H₂O: 1 M at 20 °C, clear, colorless	solubility -	solubility -
assay ≥99.5% (F)	assay ≥99.0%	assay ≥99.0%
Quality Level 200	Quality Level 200	Quality Level 200
grade reagent grade	grade ACS reagent	grade ACS reagent
impurities insoluble matter, passes filter test, ≤0.01% free alkali (as KOH), ≤0.01% free acid (as HF), ≤0.1% potassium fluoro silicate (K₂SiF₆)	impurities ≤0.01 meq/g Titr. base, ≤0.03 meq/g Titr. acid, ≤0.1% K₂SiF₆	impurities ≤0.01 meq/g Titr. base, ≤0.03 meq/g Titr. acid, ≤0.1% K₂SiF₆
form solid	form crystalline powder, powder, crystals or chunks	form crystalline powder, powder, crystals or chunks
solubility H₂O: 1 M at 20 °C, clear, colorless	solubility -	solubility -
assay ≥99.5% (F)	assay ≥99.0%	assay ≥99.0%
Quality Level 200	Quality Level 200	Quality Level 200
grade reagent grade	grade ACS reagent	grade ACS reagent
impurities insoluble matter, passes filter test, ≤0.01% free alkali (as KOH), ≤0.01% free acid (as HF), ≤0.1% potassium fluoro silicate (K₂SiF₆)	impurities ≤0.01 meq/g Titr. base, ≤0.03 meq/g Titr. acid, ≤0.1% K₂SiF₆	impurities ≤0.01 meq/g Titr. base, ≤0.03 meq/g Titr. acid, ≤0.1% K₂SiF₆

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signalword

Danger

pcodes

P261 - P280 - P301 + P310 - P302 + P352 + P312 - P304 + P340 + P311 - P305 + P351 + P338

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

GHS06,GHS05

hcodes

H301 + H311 + H331,H318

Classe di stoccaggio

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

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Fluoride inhibition of the initiation of protein synthesis in the reticulocyte lysate cell-free system.

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)

Facile hydrolysis-based chemical destruction of the warfare agents VX, GB, and HD by alumina-supported fluoride reagents.

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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Numero articolo commerciale globale

SKU	GTIN
60238-500G-F	04061832659817
60238-100G-F	04061832659596

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