455571

Kaliumborhydrid

≥97%

• Synonym(e): Potassium tetrahydroborate
• Lineare Formel: KBH₄
• CAS-Nummer: 13762-51-1
• Molekulargewicht: 53.94
• EG-Nummer: 237-360-5
• MDL-Nummer: MFCD00011396
• UNSPSC-Code: 12352306
• PubChem Substanz-ID: 24868580
• NACRES: NA.22
• Assay: ≥97%
• Form: powder

Eigenschaften

• Qualitätsniveau: 200
• Assay: ≥97%
• Form: powder
• Eignung der Reaktion: reagent type: reductant
• mp (Schmelzpunkt): 500 °C (dec.) (lit.)
• Dichte: 1.18 g/mL at 25 °C (lit.)
• SMILES String: [K+].[H][B-]([H])([H])[H]
• InChI: 1S/BH4.K/h1H4;/q-1;+1
• InChIKey: ICRGAIPBTSPUEX-UHFFFAOYSA-N

Beschreibung

Anwendung

Potassium borohydride (KBH₄) can be used as a reducing agent for the synthesis of:       

• Copper nanoparticles by the reduction of copper salts.
•  Enantioselective allylic alcohols by the catalytic reduction of enones and ketones in the presence of chiral N,N′-dioxidescandium(III) complex catalyst.,·        
• Azoxybenzenes by the reduction of nitroarenes in the presence of phase transfer catalyst PEG-400.

It can also be employed as a boron source in the nickel–boron alloy, which is electrodeposited on carbon fiber to improve catalytic graphitization of carbon.

Sicherheitshinweise

• Piktogramme: GHS02,GHS06,GHS08,GHS05
• Signalwort: Danger
• H-Sätze: H260,H301,H314,H360FD
• P-Sätze: P231 + P232 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 3 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1B - Water-react 1
• Lagerklassenschlüssel: 4.3 - Hazardous materials which set free flammable gases upon contact with water
• WGK: nwg
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable