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323403 Sigma-Aldrich

Lithium aluminum hydride

Green Alternative

pellets, reagent grade, 95%

Synonym: LAH, Lithium alanate, Lithium tetrahydroaluminate



Related Categories Alternative Energy, Aluminum Hydrides, Chemical Synthesis, Chemicals for the synthesis of candidate COVID-19 treatments, Darunavir,
Quality Level   200
grade   reagent grade
assay   95%
form   pellets
greener alternative product characteristics   Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
size   10 mm × 6 mm
mp   125 °C (dec.) (lit.)
SMILES string   [Li].[AlH3]
InChI   1S/Al.Li.4H/q-1;+1;;;;


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.

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.


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.


100 g in steel can

25 g in glass bottle

Safety & Documentation

Safety Information

Signal word 
Hazard statements 
UN 1410 4.3 / PGI
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
Why should I use Product 323403, the LAH pellets, instead of a fine crystalline powder?
The pellets are recommended for safety reasons. Powdered lithium aluminum hydride can form potentially explosive dust-air mixtures. But use of the lithium aluminum hydride pellets, which can tolerate exposure to air for a short period of time, avoids the dusting associated with the powder. Please note that longer dissolving times, perhaps up to 90 minutes at room temperature, need to be taken into account when using the pellet form.
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