222356

Lithium borohydride

≥90%

• Synonym(s): Lithium boron hydride, Lithium hydroborate
• Linear Formula: LiBH₄
• CAS Number: 16949-15-8
• Molecular Weight: 21.78
• EC Number: 241-021-7
• MDL number: MFCD00011088
• UNSPSC Code: 26111700
• PubChem Substance ID: 24853325
• NACRES: NA.22

Properties

• Assay: ≥90%
• form: solid
• reaction suitability: reagent type: reductant
• greener alternative product characteristics: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• mp: 275 °C (dec.)
• density: 0.666 g/mL at 25 °C (lit.)
• greener alternative category: Enabling,
• SMILES string: [Li+].[BH4-]
• InChI: 1S/BH4.Li/h1H4;/q-1;+1
• InChI key: UUKMSDRCXNLYOO-UHFFFAOYSA-N

Description

General description

Lithium borohydride, a white solid, may be prepared from the exchange reaction of LiCl and sodium borohydride in isopropylamine. The orthorhombic crystal structure converts to tetragonal at 108^oC and eventually melting at 278^oC. Infrared and Raman spectral studies at 80^oC have been reported in a study.

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Application

Versatile reducing agent for aldehydes, ketones, acid chlorides, lactones, epoxides, and esters. Applied in the lithiation of 2H-WS₂ giving high yields of exfoliated WS₂, and opening the way to new intercalation compounds and nanocomposites. Lithium borohydride is used as hydrogen storage system. It regenerates hydrogen at 320-380^oC at 10atm (H₂ pressure).

Safety Information

• Pictograms: GHS02,GHS06,GHS05
• Signal Word: Danger
• Hazard Statements: H260,H301,H314
• Precautionary Statements: P231 + P232 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B - Water-react 1
• Storage Class Code: 4.3 - Hazardous materials which set free flammable gases upon contact with water
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves