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60238 Sigma

Potassium fluoride

BioUltra, ≥99.5% (F)

  • CAS Number 7789-23-3

  • Linear Formula KF

  • Molecular Weight 58.10

  •  Beilstein Registry Number 3902818

  •  MDL number MFCD00011398

  •  PubChem Substance ID 57651737

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Properties

InChI Key   NROKBHXJSPEDAR-UHFFFAOYSA-M
product line   BioUltra
assay   ≥99.5% (F)
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: soluble1 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: ≤1 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

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; Strongly inhibits polypeptide chain initiation in the reticulocyte lysate cell-free system

Price and Availability


Laboratory Gloves
Safety & Documentation

Safety Information

Symbol 
GHS06  GHS06
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 1812 6.1 / PGIII
WGK Germany 
1
Protocols & Articles
Peer-Reviewed Papers
15

References

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