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Sigma-Aldrich 60239 Potassium fluoride puriss. p.a., ≥99.0% (F) CAS No.: 7789-23-3 1 kg
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LB.SA.60239-1KG
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Linear Formula: KF CAS Number: 7789-23-3 Molecular Weight: 58.10 Beilstein: 3902818 EC Number: 232-151-5 MDL number: MFCD00011398 UNSPSC Code: 12352302 PubChem Substance ID: 329758836 Assay: ≥99.0% (F) Form: powder or crystals
| Sigma-Aldrich Potassium fluoride puriss. p.a., ≥99.0% (F) CAS No.: 7789-23-3 1 kg |
| Linear Formula: KF CAS Number: 7789-23-3 Molecular Weight: 58.10 Beilstein: 3902818 EC Number: 232-151-5 MDL number: MFCD00011398 UNSPSC Code: 12352302 PubChem Substance ID: 329758836 Assay: ≥99.0% (F) Form: powder or crystals |
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PROPERTIES
grade puriss. p.a.
Quality Level 200 Assay ≥99.0% (F) form powder or crystals impurities ≤0.01% free acid (as HF) ≤0.01% free alkali (as KOH) ≤0.1% potassium fluoro silicate (K2SiF6) mp 858 °C (lit.) anion traces chloride (Cl-): ≤50 mg/kg sulfate (SO42-): ≤100 mg/kg cation traces Ag: ≤5 mg/kg Al: ≤5 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: ≤5000 mg/kg Ni: ≤5 mg/kg Pb: ≤5 mg/kg Sr: ≤5 mg/kg Tl: ≤5 mg/kg Zn: ≤5 mg/kg SMILES string [F-].[K+] InChI 1S/FH.K/h1H;/q;+1/p-1 InChI key NROKBHXJSPEDAR-UHFFFAOYSA-M DESCRIPTION General description Potassium fluoride (KF) on activated alumina is a highly reactive catalyst (basic in nature) for various organic reactions. High reactivity is due to the formation of potassium hexafluoroaluminiate, potassium hydroxide and potassium aluminate on the interaction of its fluoride ion with alumina.[1] Celite coated with potassium fluoride participates in various hydrogen-bond-mediated reactions.[2] Potassium fluoride on basic alumina in acetonitrile has been employed for the ultrasound-assisted deprotection of tert-butyldimethylsilyl ethers of phenols.[3] Neutralization reaction of hydrofluoric acid with KOH or postassium carbonate affords KF.[4] 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. Other Notes Reagent for the decomposition of silicates by fusion[5][6] |
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