8.18823

Sodium borohydride

(tablets) for synthesis

• Synonym(e): Sodium borohydride, Sodium tetrahydridoborate
• Empirische Formel (Hill-System): H₄BNa
• CAS-Nummer: 16940-66-2
• Molekulargewicht: 37.83
• MDL-Nummer: MFCD00003518
• UNSPSC-Code: 12352306
• EG-Index-Nummer: 241-004-4
• NACRES: NA.22

Eigenschaften

• Dampfdruck: <1 hPa ( 25 °C)
• Qualitätsniveau: 200
• Form: solid
• Selbstzündungstemp.: 220 °C
• Wirksamkeit: 160 mg/kg LD₅₀, oral (Rat); 230 mg/kg LD₅₀, skin (Rabbit)
• Expl.-Gr.: 3.02 % (v/v)
• Eignung der Reaktion: reagent type: reductant
• pH-Wert: 11 (20 °C, 10 g/L in H₂O)
• bp: 500 °C (decomposition)
• mp (Schmelzpunkt): >360 °C (slow decomposition)
• Übergangstemp.: flash point 69 °C
• Dichte: 1.07 g/cm³ at 20 °C
• Schüttdichte: 350‑500 kg/m³
• Lagertemp.: 2-30°C
• SMILES String: [Na][BH4]
• InChI: 1S/BH4.Na/h1H4;/q-1;+1
• InChIKey: YOQDYZUWIQVZSF-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Sodium borohydride (NaBH₄) is the most commonly available borohydride used in several industrial applications. It is considered 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. Ethanol and methanol are usually employed as solvents in NaBH₄ reduction reactions.[1]

Anwendung

Sodium borohydride (tablets form) can be used as a potential candidate to store as well as generate hydrogen for energy-carrier,applications.[2]

Hinweis zur Analyse

Gehalt (Hypochlorit): ≥ 96.0 %
Identität (ICP-OES): entspricht

Sicherheitshinweise

• Piktogramme: GHS02,GHS05,GHS06,GHS08
• 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
• Zusätzliche Gefahrenhinweise: EUH014
• Lagerklassenschlüssel: 4.3 - Hazardous materials, which set free flammable gases upon contact with water
• WGK: WGK 2
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable