Lithium aluminium hydride

From Simple English Wikipedia, the free encyclopedia
Lithium aluminium hydride

Lithium aluminum hydride is an inorganic compound. Its chemical formula is LiAlH4. It is commonly abbreviated as LAH. It is a grey solid. It was discovered by Finholt, Bond and Schlesinger in 1947.[1]

Properties[change | change source]

Lithium aluminium hydride is a colorless solid, but commercial samples are usually gray because of contamination.[2] It can be purified by recrystallization from diethyl ether.[2] It reacts violently with water.[2] Some commercial samples contain mineral oil to stop reactions with moisture in the atmosphere.[2]

Uses[change | change source]

Lithium aluminum hydride is used in organic chemistry as a reducing agent.[2] Lithium aluminum hydride is most commonly used for the reduction of esters and carboxylic acids to primary alcohols.[3]

References[change | change source]

  1. Finholt, A. E.; Bond, A. C.; Schlesinger, H. I. (1947). "Lithium Aluminum Hydride, Aluminum Hydride and Lithium Gallium Hydride, and Some of their Applications in Organic and Inorganic Chemistry 1". Journal of the American Chemical Society. 69 (5): 1199–1203. doi:10.1021/ja01197a061. ISSN 0002-7863.
  2. 2.0 2.1 2.2 2.3 2.4 Encyclopaedia of science & technology (2nd ed.). Claremont: New Africa Education. 2004. ISBN 1-86928-384-8. OCLC 238823160.
  3. "Preparation of Enantiomerically Pure α-N,N-Dibenzylamino Aldehydes: S-2-(N,N-Dibenzylamino)-3-Phenylpropanal". www.orgsyn.org. Retrieved 2020-09-19.