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.
212776
Lithium aluminum hydride solution
1.0 M in THF
Sinónimos:
LAH, Lithium alanate, Lithium tetrahydroaluminate
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About This Item
Fórmula lineal:
LiAlH4
Número de CAS:
Peso molecular:
37.95
MDL number:
UNSPSC Code:
26111700
PubChem Substance ID:
NACRES:
NA.22
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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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Categorías relacionadas
Application
Reactant or reagent for:
LAH is a powerful reducing agent for many different reduction reactions such as that of ketones to alcohols
- 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
signalword
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
supp_hazards
Storage Class
4.3 - Hazardous materials which set free flammable gases upon contact with water
wgk_germany
WGK 1
flash_point_f
1.4 °F - closed cup
flash_point_c
-17 °C - closed cup
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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))
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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
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
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
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Product 212776, Lithium aluminum hydride solution, appears to container a precipitate in it. Is it still OK to use?
1 answer-
Helpful?
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What is the Department of Transportation shipping information for this product?
1 answer-
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.
Helpful?
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Why is Product 212776, Lithium aluminum hydride solution, considered carcinogenic?
1 answer-
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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