Global Information Lookup Global Information

Lithium aluminium hydride information


Lithium aluminium hydride
Wireframe model of lithium aluminium hydride
Wireframe model of lithium aluminium hydride
Unit cell ball and stick model of lithium aluminium hydride
Unit cell ball and stick model of lithium aluminium hydride
Lithium aluminium hydride
Names
Preferred IUPAC name
Lithium tetrahydridoaluminate(III)
Systematic IUPAC name
Lithium alumanuide
Other names
  • Lithium aluminium hydride
  • Lithal
  • Lithium alanate
  • Lithium aluminohydride
  • Lithium tetrahydridoaluminate
Identifiers
CAS Number
  • 16853-85-3 checkY
  • 14128-54-2 (2H4) checkY
3D model (JSmol)
  • Interactive image
Abbreviations LAH
ChEBI
  • CHEBI:30142 checkY
ChemSpider
  • 26150 checkY
ECHA InfoCard 100.037.146 Edit this at Wikidata
EC Number
  • 240-877-9
Gmelin Reference
13167
PubChem CID
  • 28112
  • 11062293 (2H4)
  • 11094533 (3H4)
RTECS number
  • BD0100000
UNII
  • 77UJC875H4 checkY
UN number 1410
CompTox Dashboard (EPA)
  • DTXSID70893441 Edit this at Wikidata
InChI
  • InChI=1S/Al.Li.4H/q-1;+1;;;; checkY
    Key: OCZDCIYGECBNKL-UHFFFAOYSA-N checkY
  • InChI=1S/Al.Li.4H/q-1;+1;;;;
  • Key: OCZDCIYGECBNKL-UHFFFAOYSA-N
SMILES
  • [Li+].[AlH4-]
Properties
Chemical formula
Li[AlH4]
Molar mass 37.95 g·mol−1
Appearance white crystals (pure samples)
grey powder (commercial material)
hygroscopic
Odor odorless
Density 0.917 g/cm3, solid
Melting point 150 °C (302 °F; 423 K) (decomposes)
Solubility in water
Reacts
Solubility in tetrahydrofuran 112.332 g/L
Solubility in diethyl ether 39.5 g/(100 mL)
Structure
Crystal structure
monoclinic
Space group
P21/c
Thermochemistry
Heat capacity (C)
86.4 J/(mol·K)
Std molar
entropy (S298)
87.9 J/(mol·K)
Std enthalpy of
formation fH298)
−117 kJ/mol
Gibbs free energy fG)
−48.4 kJ/mol
Hazards[2]
GHS labelling:
Pictograms
GHS02: FlammableGHS05: Corrosive
Signal word
Danger
Hazard statements
H260, H314
Precautionary statements
P223, P231+P232, P280, P305+P351+P338, P370+P378, P422[1]
NFPA 704 (fire diamond)
[3]
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuelInstability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorusSpecial hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
3
2
2
W
Flash point 125 °C (257 °F; 398 K)
Safety data sheet (SDS) Lithium aluminium hydride
Related compounds
Related hydride
aluminium hydride
sodium borohydride
sodium hydride
Sodium aluminium hydride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Lithium aluminium hydride, commonly abbreviated to LAH, is an inorganic compound with the chemical formula Li[AlH4] or LiAlH4. It is a white solid, discovered by Finholt, Bond and Schlesinger in 1947.[4] This compound is used as a reducing agent in organic synthesis, especially for the reduction of esters, carboxylic acids, and amides. The solid is dangerously reactive toward water, releasing gaseous hydrogen (H2). Some related derivatives have been discussed for hydrogen storage.

  1. ^ Sigma-Aldrich Co., Lithium aluminium hydride. Retrieved on 2018-06-1.
  2. ^ Index no. 001-002-00-4 of Annex VI, Part 3, to Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006. OJEU L353, 31.12.2008, pp 1–1355 at p 472.
  3. ^ Lithium aluminium hydride
  4. ^ 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". Journal of the American Chemical Society. 69 (5): 1199–1203. doi:10.1021/ja01197a061.

and 28 Related for: Lithium aluminium hydride information

Request time (Page generated in 0.8222 seconds.)

Lithium aluminium hydride

Last Update:

Lithium aluminium hydride, commonly abbreviated to LAH, is an inorganic compound with the chemical formula Li[AlH4] or LiAlH4. It is a white solid, discovered...

Word Count : 3019

Lithium hydride

Last Update:

Lithium hydride is an inorganic compound with the formula LiH. This alkali metal hydride is a colorless solid, although commercial samples are grey. Characteristic...

Word Count : 1914

Aluminium hydride

Last Update:

Aluminium hydride (also known as alane and alumane) is an inorganic compound with the formula AlH3. Alane and its derivatives are part of a family of...

Word Count : 3120

Hydride

Last Update:

metal hydrides react with metal halides. Lithium aluminium hydride (often abbreviated as LAH) arises from reactions of lithium hydride with aluminium chloride...

Word Count : 2333

Organic redox reaction

Last Update:

refer to the reduction of a ketone by lithium aluminium hydride, but not to the oxidation of lithium aluminium hydride by a ketone. Many oxidations involve...

Word Count : 672

Lithium borohydride

Last Update:

soluble in ethers, whilst remaining safer to handle than lithium aluminium hydride. Lithium borohydride may be prepared by the metathesis reaction, which...

Word Count : 827

Sodium aluminium hydride

Last Update:

suspension in diethyl ether, it reacts with lithium chloride to give the popular reagent lithium aluminium hydride: LiCl + NaAlH4 → LiAlH4 + NaCl The compound...

Word Count : 456

Sodium borohydride

Last Update:

tri-sec-butylborohydride), a more strongly reducing derivative. Lithium aluminium hydride, a more strongly reducing reagent, capable of reducing esters...

Word Count : 2615

Aluminium

Last Update:

aluminium hydride is lithium aluminium hydride (LiAlH4), which is used in as a reducing agent in organic chemistry. It can be produced from lithium hydride...

Word Count : 14477

Diborane

Last Update:

sodium hydride (NaH), lithium hydride (LiH) or lithium aluminium hydride (LiAlH4): 8 BF3 + 6 LiH → B2H6 + 6 LiBF4 Lithium hydride used for this purpose must...

Word Count : 2594

Carbonyl reduction

Last Update:

(nitro group, nitrile, ester). In their handling properties, lithium aluminium hydride and sodium borohydride (and their derivatives) strongly differ...

Word Count : 2716

Lithium triethylborohydride

Last Update:

stronger reducing agent than lithium borohydride and lithium aluminium hydride. LiBHEt3 is prepared by the reaction of lithium hydride (LiH) and triethylborane...

Word Count : 588

Lithium

Last Update:

include lithium aluminium hydride (LiAlH4), lithium triethylborohydride, n-butyllithium and tert-butyllithium. Metallic lithium and its complex hydrides, such...

Word Count : 13448

Pyrophoricity

Last Update:

Metal hydrides (sodium hydride, lithium aluminium hydride, uranium trihydride) Partially or fully alkylated derivatives of metal and nonmetal hydrides (diethylaluminium...

Word Count : 810

Hydrogen compounds

Last Update:

electronegativity of hydrogen. An exception in group 2 hydrides is BeH2, which is polymeric. In lithium aluminium hydride, the [AlH4]− anion carries hydridic centers...

Word Count : 1492

Magnesium hydride

Last Update:

Mg(anthracene) + H2 → MgH2 the reaction of diethylmagnesium with lithium aluminium hydride product of complexed MgH2 e.g. MgH2.THF by the reaction of phenylsilane...

Word Count : 952

Reductions with metal alkoxyaluminium hydrides

Last Update:

group with hydrogen by metal alkoxyaluminium hydride reagents. Sodium borohydride and lithium aluminium hydride are commonly used for the reduction of organic...

Word Count : 1747

Nitrile reduction

Last Update:

agents for the non-catalytic conversion to amines include lithium aluminium hydride, lithium borohydride, diborane, or elemental sodium in alcohol solvents...

Word Count : 738

Ethylene oxide

Last Update:

boranes, lithium aluminium hydride and some other hydrides. ( CH 2 CH 2 ) O + H 2 → 80 ∘ C Ni , Pt , Pd , BH 3 , LiAlH 4  or other hydrides C 2 H 5 OH...

Word Count : 11529

Beryllium hydride

Last Update:

synthesized in 1951 by treating dimethylberyllium, Be(CH3)2, with lithium aluminium hydride, LiAlH4. Purer BeH2 forms from the pyrolysis of di-tert-butylberyllium...

Word Count : 781

Azetidine

Last Update:

azetidinones (β-lactams) with lithium aluminium hydride. Even more effective is a mixture of lithium aluminium hydride and aluminium trichloride, a source of...

Word Count : 311

Lithium tetrahydridogallate

Last Update:

aluminium hydride. Lithium tetrahydridogallate was first reported by Finholt, Bond and Schlesinger. It is prepared by the reaction of lithium hydride and...

Word Count : 646

Emde degradation

Last Update:

Alternative reducing agents exist for this reaction; for instance, lithium aluminium hydride. Related reactions are the Hofmann elimination and the von Braun...

Word Count : 135

Aluminium compounds

Last Update:

aluminium hydride is lithium aluminium hydride (LiAlH4), which is used in as a reducing agent in organic chemistry. It can be produced from lithium hydride...

Word Count : 2804

Sulfonyl group

Last Update:

: 53  Sulfonyl groups can be reduced to the sulfide with DIBALH. Lithium aluminium hydride (LiAlH4) reduces some but not all sulfones to sulfides.: 1851 ...

Word Count : 201

Enantioselective reduction of ketones

Last Update:

accomplish this task include lithium aluminium hydride, sodium borohydride, alkoxy borohydrides, alkoxy aluminium hydrides, and boranes. Although stoichiometric...

Word Count : 1406

Polonium hydride

Last Update:

synthesis include the reaction of polonium tetrachloride (PoCl4) with lithium aluminium hydride (LiAlH4), which only produces elemental polonium, and the reaction...

Word Count : 534

Nitrile

Last Update:

conventional organic reductions, nitrile is reduced by treatment with lithium aluminium hydride to the amine. Reduction to the imine followed by hydrolysis to...

Word Count : 3396

PDF Search Engine © AllGlobal.net