60239

Potassium fluoride

puriss. p.a., ≥99.0% (F)

• Linear Formula: KF
• CAS Number: 7789-23-3
• Molecular Weight: 58.10
• Beilstein: 3902818
• EC Number: 232-151-5
• MDL number: MFCD00011398
• UNSPSC 코드: 12352302
• PubChem Substance ID: 329758836

속성

• grade: puriss. p.a.
• Quality Level: 200
• 분석: ≥99.0% (F)
• 형태: powder or crystals
• 불순물: ≤0.01% free acid (as HF); ≤0.01% free alkali (as KOH); ≤0.1% potassium fluoro silicate (K₂SiF₆)
• mp: 858 °C (lit.)
• 음이온 미량물: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• 양이온 미량물: 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

설명

일반 설명

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. Celite coated with potassium fluoride participates in various hydrogen-bond-mediated reactions. Potassium fluoride on basic alumina in acetonitrile has been employed for the ultrasound-assisted deprotection of tert-butyldimethylsilyl ethers of phenols. Neutralization reaction of hydrofluoric acid with KOH or postassium carbonate affords KF.

애플리케이션

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.

기타 정보

Reagent for the decomposition of silicates by fusion

안전성 정보

• 픽토그램: GHS06,GHS05
• 신호어: Danger
• 유해 및 위험 성명서: H301 + H311 + H331,H318
• 예방조치 성명서: 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
• Storage Class Code: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable