71320

Borohydrure de sodium

purum p.a., ≥96% (gas-volumetric)

• Synonyme(s) : Tétrahydruroborate de sodium
• Formule linéaire : NaBH₄
• Numéro CAS: 16940-66-2
• Poids moléculaire : 37.83
• Numéro CE : 241-004-4
• Numéro MDL: MFCD00003518
• Code UNSPSC : 26111700
• ID de substance PubChem : 57652284
• Nomenclature NACRES : NA.22

Propriétés

• Qualité: purum p.a.
• Niveau de qualité: 200
• Pureté: ≥96% (gas-volumetric)
• Forme: powder
• Pertinence de la réaction: reagent type: reductant
• Pf: >300 °C (dec.) (lit.)
• Traces d'anions: chloride (Cl^-): ≤5000 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• Traces de cations: Ca: ≤50 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤50 mg/kg; K: ≤1000 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• Chaîne SMILES: [BH4-].[Na+]
• InChI: 1S/BH4.Na/h1H4;/q-1;+1
• Clé InChI: YOQDYZUWIQVZSF-UHFFFAOYSA-N

Description

Description générale

Sodium borohydride is considered as a selective reducing agent due to its ability to selectively reduce aldehydes and ketones into their corresponding alcohols in the presence of other functional groups such as nitro, ester, amide, lactone, epoxide, and nitriles that are otherwise susceptible to reduction. It is being considered as a promising candidate for hydrogen storage applications.

Application

Sodium borohydride may be used as a reductant and hydrogen source for the semi-hydrogenation of alkynes to the corresponding alkenes in the presence of nickel nanoparticles generated in situ from nickel chloride and methanol. It can also be used as a reducing agent for the synthesis of gold nanoparticles from gold chloride.

Autres remarques

Reduction of carboxylic acid derivatives

Informations sur la sécurité

• Pictogrammes: GHS02,GHS06,GHS08,GHS05
• Mention d'avertissement: Danger
• Mentions de danger: H260,H301,H314,H360FD
• Conseils de prudence: P231 + P232 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classification des risques: Acute Tox. 3 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1B - Water-react 1
• Risques supp: EUH014
• Code de la classe de stockage: 4.3 - Hazardous materials which set free flammable gases upon contact with water
• Classe de danger pour l'eau (WGK): WGK 2
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges