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222356

Sigma-Aldrich

Lithium borohydride

greener alternative

≥90%

Sinónimos:

Lithium boron hydride, Lithium hydroborate

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About This Item

Fórmula lineal:
LiBH4
Número de CAS:
16949-15-8
Peso molecular:
21.78
EC Number:
241-021-7
MDL number:
MFCD00011088
UNSPSC Code:
26111700
PubChem Substance ID:
24853325
NACRES:
NA.22

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

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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 108oC and eventually melting at 278oC. Infrared and Raman spectral studies at 80oC 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 320-380oC at 10atm (H2 pressure).

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Danger

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B - Water-react 1

Storage Class

4.3 - Hazardous materials which set free flammable gases upon contact with water

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Fieser, M.
Reagents for Organic Synthesis, 14, 191-191 (1989)
Tsai, H-L. et al.
Chemistry of Materials, 9, 879-879 (1997)
Mita Dasog et al.
Chemical communications (Cambridge, England), 47(30), 8569-8571 (2011-06-28)
In the presence of large excesses of borohydride salts, gold monolayer protected-clusters can be grown to larger sizes simply by controlling the amount of reducing agent added to smaller clusters. In addition, gold monolayer clusters can be used as catalysts
Low temperature infrared and raman spectra of lithium borohydride.
Harvey KB and McQuaker NR
Canadian Journal of Chemistry, 49(21), 3282-3286 (1971)
Hui Wu et al.
Nanotechnology, 20(20), 204002-204002 (2009-05-08)
The use of Li3BN2H8 complex hydride as a practical hydrogen storage material is limited by its high desorption temperature and poor reversibility. While certain catalysts have been shown to decrease the dehydrogenation temperature, no significant improvement in reversibility has been
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