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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:
Molecular Weight:
37.95
EC Number:
MDL number:
UNSPSC Code:
26111700
PubChem Substance ID:
NACRES:
NA.22

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Quality Level

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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1 of 4

This Item
323403686034199877
assay

≥97.0% (gas-volumetric)

assay

95%

assay

>99.95%

assay

95%

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

200

reaction suitability

reagent type: reductant

reaction suitability

reagent type: reductant

reaction suitability

reagent type: reductant

reaction suitability

reagent type: reductant

form

solid

form

pellets

form

pellets

form

powder

mp

125 °C (dec.) (lit.)

mp

125 °C (dec.) (lit.)

mp

125 °C (dec.) (lit.)

mp

125 °C (dec.) (lit.)

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.[1]

Application

Reactant involved in:
  • Dehydrogenation studied with various catalysts[2]
  • Regeneration of methoxysilanes via reduction[3]
  • Transition metal electrophilic hydrogen activation via heterolytic cleavage[4]
  • Formation of nickel hydrogenation catalysts[5]
  • Hydrogen sorption[6]
  • Electrodeposition of Al on W-Cu substrates[7]

Packaging

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

pictograms

FlameCorrosion

signalword

Danger

hcodes

Hazard Classifications

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

Storage Class

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

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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


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Q. Chen, et al.,
Surface and Coating Tech., 205, 4418-4424 (2011)
R. A. Varin and L. Zbroniec,
J. Alloy Compounds, 509, S736-S739 (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
Rafi-ud-din, et al.,
The Journal of Physical Chemistry C, 115, 13088-13099 (2011)
Lithium Aluminum Hydride
Paquette LA, et al.
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)

Questions

  1. Is the entirety of the reagent in a single bag or is it portioned somehow?

    1 answer
    1. The 250 gram size is packaged in a single bag that is placed in a 1 gallon can. The 50 gram and 10 gram sizes are packaged in single amber glass bottles that are placed in an over pack can.

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