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62420

Sigma-Aldrich

Lithium aluminum hydride

≥97.0% (gas-volumetric)

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:
57651882
NACRES:
NA.22

Assay

≥97.0% (gas-volumetric)

form

solid

reaction suitability

reagent type: reductant

mp

125 °C (dec.) (lit.)

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 hydride (LiAlH4) is a powerful reducing agent used in organic synthesis to reduce esters, carboxylic acids, acyl chlorides, aldehydes, epoxides, and ketones into the corresponding alcohols. It also converts amide, nitro, nitrile, imine, oxime, and azide compounds into amines.

Application

Reactant involved in:
  • Dehydrogenation studied with various catalysts
  • Regeneration of methoxysilanes via reduction
  • Transition metal electrophilic hydrogen activation via heterolytic cleavage
  • Formation of nickel hydrogenation catalysts
  • Hydrogen sorption
  • Electrodeposition of Al on W-Cu substrates

Packaging

packed in plastic bag, which is soluble at 45-60°C in hydrocarbons, THF and dioxane

Pictograms

FlameCorrosion
GHS02,GHS05

Signal Word

Danger

Hazard Statements

H260,H314

Hazard Classifications

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

Storage Class Code

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 3: Spontaneously combustible substances and water- reactive materials
Metal hydrides
Hazardous rank I
1st spontaneously combustible materials and water reactive materials

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

62420-250G-F:4548173370187
62420-10G-F:4548173370170
62420-50G-F:4548173370194
62420-BULK-F:
62420-VAR-F:

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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J. W. Runyon, et al.,
Australian Journal of Chemistry, 64, 1165-1172 (2011)
Lithium Aluminum Hydride
Paquette LA, et al.
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
Q. Chen, et al.,
Surface and Coating Tech., 205, 4418-4424 (2011)
Rafi-ud-din, et al.,
The Journal of Physical Chemistry C, 115, 13088-13099 (2011)
Chu Liang et al.
Nature communications, 12(1), 119-119 (2021-01-07)
Environmentally benign synthesis of graphite at low temperatures is a great challenge in the absence of transition metal catalysts. Herein, we report a green and efficient approach of synthesizing graphite from carbon dioxide at ultralow temperatures in the absence of
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