60240

Potassium fluoride

purum p.a., ≥99.0% (F)

• Fórmula lineal: KF
• Número de CAS: 7789-23-3
• Peso molecular: 58.10
• Beilstein: 3902818
• Número CE: 232-151-5
• Número MDL: MFCD00011398
• Código UNSPSC: 12352302
• ID de la sustancia en PubChem: 329758837
• NACRES: NA.21
• Ensayo: ≥99.0% (F)
• Formulario: powder or crystals

Propiedades

• presión de vapor: 1.3 hPa ( 885 °C)
• Nivel de calidad: 200
• grado: purum p.a.
• Ensayo: ≥99.0% (F)
• Formulario: powder or crystals
• pH: 8-9 (20 °C, 50 g/L)
• mp: 858 °C (lit.)
• trazas de anión: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤1000 mg/kg
• trazas de catión: Ca: ≤50 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤50 mg/kg; Na: ≤5000 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• cadena SMILES: [F-].[K+]
• InChI: 1S/FH.K/h1H;/q;+1/p-1
• Clave InChI: NROKBHXJSPEDAR-UHFFFAOYSA-M

Descripción

Descripción general

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.

Aplicación

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 employed for doping the natural calcium phosphate (NP) for high yield synthesis of activated alkenes.

Información de seguridad

• Pictogramas: GHS05,GHS06
• Palabra de señalización: Danger
• Frases de peligro: H301 + H311 + H331 - H318
• Consejos de prudencia: P261 - P280 - P301 + P310 - P302 + P352 + P312 - P304 + P340 + P311 - P305 + P351 + P338
• Clasificaciones de peligro: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1
• Código de clase de almacenamiento: 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable