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Potassium fluoride

Name: Potassium fluoride
Brand: SIGMA
Price: 437 PLN

BioUltra, ≥99.5% (F)

Synonym(s):

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Size/SKU	Availability	Price
100 g	Please contact Customer Service for Availability	PLN 437.00
500 g	Please contact Customer Service for Availability	PLN 1,460.00

About This Item

Linear Formula:

CAS Number:

7789-23-3

Molecular Weight:

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

PLN 437.00

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Properties

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

Description

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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This Item	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
assay ≥99.5% (F)	assay ≥99.0%	assay ≥99.0%
solubility H₂O: 1 M at 20 °C, clear, colorless	solubility -	solubility -
Quality Level 200	Quality Level 200	Quality Level 200
grade reagent grade	grade ACS reagent	grade ACS reagent
cation traces Al: ≤5 mg/kg, Ba: ≤5 mg/kg, Ca: ≤10 mg/kg, Co: ≤5 mg/kg, Cu: ≤5 mg/kg, Li: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤2000 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg, As: ≤3 mg/kg, Cd: ≤5 mg/kg, Fe: ≤5 mg/kg, Mo: ≤5 mg/kg, Sr: ≤5 mg/kg, Bi: ≤5 mg/kg, Mg: ≤5 mg/kg, Cr: ≤5 mg/kg, Ni: ≤5 mg/kg	cation traces Fe: ≤0.001%, Na: ≤0.2%, heavy metals: ≤0.001% (by ICP)	cation traces Fe: ≤0.001%, Na: ≤0.2%, heavy metals: ≤0.001% (by ICP)
form solid	form crystalline powder, powder, crystals or chunks	form crystalline powder, powder, crystals or chunks
assay ≥99.5% (F)	assay ≥99.0%	assay ≥99.0%
solubility H₂O: 1 M at 20 °C, clear, colorless	solubility -	solubility -
Quality Level 200	Quality Level 200	Quality Level 200
grade reagent grade	grade ACS reagent	grade ACS reagent
cation traces Al: ≤5 mg/kg, Ba: ≤5 mg/kg, Ca: ≤10 mg/kg, Co: ≤5 mg/kg, Cu: ≤5 mg/kg, Li: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤2000 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg, As: ≤3 mg/kg, Cd: ≤5 mg/kg, Fe: ≤5 mg/kg, Mo: ≤5 mg/kg, Sr: ≤5 mg/kg, Bi: ≤5 mg/kg, Mg: ≤5 mg/kg, Cr: ≤5 mg/kg, Ni: ≤5 mg/kg	cation traces Fe: ≤0.001%, Na: ≤0.2%, heavy metals: ≤0.001% (by ICP)	cation traces Fe: ≤0.001%, Na: ≤0.2%, heavy metals: ≤0.001% (by ICP)

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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

Storage Class

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

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