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212776

Sigma-Aldrich

Lithium aluminum hydride solution

1.0 M in THF

Synonyme(s) :

LAH, Lithium alanate, Lithium tetrahydroaluminate

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About This Item

Formule linéaire :
LiAlH4
Numéro CAS:
16853-85-3
Poids moléculaire :
37.95
Numéro MDL:
MFCD00011075
Code UNSPSC :
26111700
ID de substance PubChem :
24852740
Nomenclature NACRES :
NA.22
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Forme

liquid

Niveau de qualité

200

Pertinence de la réaction

reagent type: reductant

Concentration

1.0 M in THF

Densité

0.905 g/mL at 25 °C

Température de stockage

2-30°C

Chaîne SMILES 

[Li+].[AlH4-]

InChI

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

Clé InChI

OCZDCIYGECBNKL-UHFFFAOYSA-N

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Catégories apparentées

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

Conditionnement

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

Informations légales

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

Mention d'avertissement

Danger

Classification des risques

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

Organes cibles

Central nervous system, Respiratory system

Risques supp

EUH019

Code de la classe de stockage

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

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

1.4 °F - closed cup

Point d'éclair (°C)

-17 °C - closed cup

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Certificats d'analyse (COA)

Lot/Batch Number
SHBQ7473
SHBN8878
SHBN5963
SHBM9969
SHBM9968

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Mitsuteru Numazawa et al.
Chemical & pharmaceutical bulletin, 54(4), 554-556 (2006-04-06)
Reduction of a double bond at C-1 of 1,4-dien-3-one steroids 7 and 8 with LiAl2H4 in THF or NaB2H4 in MeOH and H2O gave stereospecifically [1alpha-2H]-labeled 4-en-3-one steroids 9 and 10, respectively. When the deuterated solvents, MeO2H and 2H2O, were
Matthias D'hooghe et al.
Organic & biomolecular chemistry, 8(3), 607-615 (2010-01-22)
trans- and cis-1-Alkyl-4-aryl-3-chloroazetidin-2-ones, prepared through cyclocondensation of chloroketene and the appropriate imines in a diastereoselective way, were transformed into the corresponding non-activated trans- and cis-2-aryl-3-(hydroxymethyl)aziridines via reductive ring contraction using LiAlH(4) in Et(2)O. Furthermore, trans-2-aryl-3-(hydroxymethyl)aziridines were transformed into 2-amino-3-arylpropan-1-ols and
Seiji Takeda et al.
Journal of biomedical nanotechnology, 9(2), 303-306 (2013-05-01)
Measurement of oxidized low-density lipoprotein (LDL) generated by oxidative stress of various kinds might be useful for evaluating the risk of cardiovascular disease. We evaluated some electrode materials to detect oxidized LDL electrochemically. Some carbon nanotube dispersions were studied as
Pseudo-allosteric recognition of mandelic acid with an enantioselective coordination complex.
Jungseok Heo et al.
Angewandte Chemie (International ed. in English), 45(6), 941-944 (2005-12-31)
Andreas Grubelnik et al.
Journal of separation science, 31(10), 1739-1744 (2008-05-08)
Bacterial poly(hydroxyalkanoates) (PHAs) vary in the composition of their monomeric units. Besides saturated side-chains, unsaturated ones can also be found. The latter leads to unwanted by-products (THF ester, secondary alcohols) during acidic cleavage of the polymer backbone in the conventional
Afficher tous les articles scientifiques apparentés

Questions

1–5 of 5 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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

    1 answer

    1. 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.

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  4. What is the Department of Transportation shipping information for this product?

    1 answer

    1. 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.

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

    1 answer

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

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