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212776

Sigma-Aldrich

Lithium aluminum hydride solution

1.0 M in THF

Synonym(s):

LAH, Lithium alanate, Lithium tetrahydroaluminate

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About This Item

Linear Formula:
LiAlH4
CAS Number:
Molecular Weight:
37.95
MDL number:
UNSPSC Code:
26111700
PubChem Substance ID:
NACRES:
NA.22

form

liquid

Quality Level

reaction suitability

reagent type: reductant

concentration

1.0 M in THF

density

0.905 g/mL at 25 °C

storage temp.

2-30°C

SMILES string

[Li+].[AlH4-]

InChI

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

InChI key

OCZDCIYGECBNKL-UHFFFAOYSA-N

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Application

Reactant or reagent for:
  • The preparation of thermoplastic polyester polyamides from oleic acid
  • Lithium-polymer batteries
  • Hydrodefluorination of gem-difluoromethylene derivatives
  • Asymmetric aldol reactions
  • Synthesis of Li-Al-N-H composites with hydrogen absorption / desorption properties

LAH is a powerful reducing agent for many different reduction reactions such as that of ketones to alcohols

Packaging

The 25 mL Sure/Seal bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Central nervous system, Respiratory system

Supplementary Hazards

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

1.4 °F - closed cup

Flash Point(C)

-17 °C - closed cup

Regulatory Information

监管及禁止进口产品

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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  1. 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.

  2. 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.

  3. Why is Product 212776, Lithium aluminum hydride solution, considered carcinogenic?

    The carcinogen reference comes from Tetrahydrofuran (THF).  The solution is 90% THF.  The THF reference is form the National Toxicology Program (NTP) database.

  4. Product 212776, Lithium aluminum hydride solution, appears to container a precipitate in it.  Is it still OK to use?

    Most if not all solid lithium aluminum hydride will contain some form of insoluble oxides from slight air exposure.  You should be able to filter the insolubles - keeping air exposure to a minimum is the key. This procedure should be done entirely under argon (argon is typically a drier gas than nitrogen). If the final solution is exposed to air at any time, insolubles will be formed which will  then require further filtration to get clear again.

  5. 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.

  6. 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. 

  7. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

I-Chi Lee et al.
Organic & biomolecular chemistry, 9(22), 7655-7658 (2011-09-17)
Specific deuterated reference compounds were prepared to probe the stereoselectivity of the reductive ring opening of carbohydrate-based benzylidene-type acetals. AlD(3) revealed a retentive stereoselectivity probably through the rare S(N)i (internal nucleophilic substitution) mechanism. An S(N)1-like mechanism occurs in the acid-promoted
Hao Yao et al.
Journal of electron microscopy, 60(6), 375-378 (2011-10-05)
A plastic bag method was developed to observe air-sensitive samples on microstructure and phase distribution without exposure to air during the holder transfer process into the transmission electron microscope (TEM). As an example, a type of lithium aluminum hydride (Li(3)AlH(6))
José M Concellón et al.
The Journal of organic chemistry, 71(17), 6420-6426 (2006-08-12)
The reaction of chiral (2R,1'S)- or (2S,1'S)-2-(1-aminoalkyl)epoxides, 1 or 2 with a variety of organolithium compounds to obtain the corresponding (alphaS,betaS)- or (alphaR,betaS)- beta-amino alcohols in enantiopure form is reported. In both cases, the opening of the oxirane ring at
Haruki Sashida et al.
Chemical & pharmaceutical bulletin, 52(1), 57-62 (2004-01-08)
The reactions of the 2-benzoselenopyrylium (1A) and 2-benzotelluropyrylium cations (1B) with a variety of nucleophiles have been investigated. LiAlH(4), sodium alkoxide (NaOMe, NaOi-Pr and NaOt-Bu), diethylamine, n-butylamine and acetone reacted with 1 to give the 1H-isochromenes (2) and the corresponding
Takashi Ikegami et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 804(1), 197-201 (2004-04-20)
Bisphenol A (BPA) recognition materials were synthesized by a covalent imprinting technique using BPA-dimethacrylate or BPA-diacrylate as the template monomer. Binding sites in the polymers consisted of two hydroxyl groups that are generated by reducing the ester bonds of the

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