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Sigma-Aldrich

Lithium aluminum hydride

greener alternative

pellets, reagent grade, 95%

Synonym(s):

LAH, Lithium alanate, Lithium tetrahydroaluminate

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About This Item

Linear Formula:
LiAlH4
CAS Number:
16853-85-3
Molecular Weight:
37.95
EC Number:
240-877-9
MDL number:
MFCD00011075
UNSPSC Code:
26111700
PubChem Substance ID:
24859363
NACRES:
NA.22

grade

reagent grade

Quality Level

200

assay

95%

form

pellets

reaction suitability

reagent type: reductant

greener alternative product characteristics

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Learn more about the Principles of Green Chemistry.

sustainability

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size

10 mm × 6 mm

mp

125 °C (dec.) (lit.)

greener alternative category

, Enabling

SMILES string

[Li].[AlH3]

InChI

1S/Al.Li.4H/q-1;+1;;;;

InChI key

OCZDCIYGECBNKL-UHFFFAOYSA-N

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General description

Lithium aluminum anhydride is effective as a selective reducing agent.The anhydride may be prepared by reacting lithium hydride with aluminum chloride. It is soluble in ether and it can reduce carboxyl group to primary alcohol group with great ease. Other organic compounds that can be reduced by lithium aluminum hydride are aldehydes, ketones, acid chlorides, acid anhydrides, halides, quinones, nitrogen compounds.
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Application

Lithium aluminum hydride (LAH) can be used as a promising material for hydrogen storage applications. Its properties include high gravimetric and volumetric hydrogen densities.
Lithium aluminum hydride can be used to prepare undec-10-en-1-ol, a key intermediate for the preparation of polythioethers.

pictograms

FlameCorrosion
GHS02,GHS05

signalword

Danger

hcodes

H260,H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1A - Water-react 1

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sigma-Aldrich

196193

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Sasol Encyclopaedia of Science and Technology null
Renewable sulfur-containing thermoplastics via AB-type thiol-ene polyaddition
van den Berg O, et al.
European Polymer Journal, 49(4), 804-812 (2013)
Reductions by lithium aluminum hydride.
Brown WG
Organic Reactions (1951)
Reduction of Organic Compounds by Lithium Aluminum Hydride. III. Halides, Quinones, Miscellaneous Nitrogen Compounds1.
Nystrom RF and Brown WG
Journal of the American Chemical Society, 70(11), 3738-3740 (1948)
Reduction of organic compounds by lithium aluminum hydride. I. Aldehydes, ketones, esters, acid chlorides and acid anhydrides.
Nystrom RF and Brown WG
Journal of the American Chemical Society, 69(5), 1197-1199 (1947)
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