16853-85-3

  • Product Name:Lithium aluminium hydride
  • Molecular Formula:AlH4.Li
  • Molecular Weight:37.9543
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Product Details

Detail

  • Cas No: 16853-85-3
  • Molecular Formula: AlH4.Li
  • Appearance: white crystalline powder
  • Purity: 99%
Product Name Lithium aluminium hydride
Alias
English
Molecular formula

LiAlH4

Molecular weight 37.95
CAS No 16853-85-3
EINECS 240-877-9
Specification

97%

Appearance traits

 White or white crystalline powder, stable in dry air at room temperature.

Use

Carbonyl reagent. Reducing agent. Manufacture of other hydride and silane borane, etc.. In medicine, spices, pesticides, dyes and other fine organic synthesis used as a reducing agent

Package

100g, 500g,1KG can

Other product information

Factory supply Lithium aluminium hydride 16853-85-3 (LiAlH4)  with low price

  • Molecular Formula:AlH4.Li
  • Molecular Weight:37.9543
  • Appearance/Colour:white crystalline powder 
  • Melting Point:125 °C (dec.)(lit.) 
  • Boiling Point:0 °C 
  • Flash Point:99 °F 
  • PSA:0.00000 
  • Density:0.917 
  • LogP:0.45000 

Lithium aluminium hydride(Cas 16853-85-3) Usage

General Description A reactive white powder that may turn grey upon exposure.
Can ignite upon friction when spread over large surfaces.
Utilized in the production of other chemicals, as a polymerization catalyst, hydrogen source, and propellant.

Preparation

Lithium aluminum hydride is prepared by reaction of lithium hydride with aluminum chloride in diethylether: 4LiH + AlCl3 →(C2H5)2O→LiAlH4+3LiCl

Uses

Lithium aluminum hydride (LiAlH4) Reduces esters, carboxylic acids, acyl chlorides, aldehydes, epoxides, and ketones into alcohols. It is also used in the synthesis of reduced graphene oxide (rGO). LAH combined with metallic iron (Fe⁰) facilitates the hydrogenation of multi-substituted alkenes and arenes.

Air and Water Reactions Reacts violently with water or moist air, leading to ignition of the evolved hydrogen.
Reactivity Profile Highly reactive with oxidizing agents, hydroxy compounds, and some ethers.
Reduces CO₂ and bicarbonates to methane and ethane at elevated temperatures.
Forms explosive complexes with ether, dimethylamine, and tetrazoles.

InChI:InChI=1/Al.Li.4H/q-1;+1;;;;/rAlH4.Li/h1H4;/q-1;+1

High quality chemical talents, abundant product resources, perfect supply chain, reasonable organizational structure and scientific management model are the core competitiveness of our company's continuous development. Based on good credibility, cooperation, development, and win-win purpose, after years of efforts, the company has established stable cooperative relationships with more than hundreds of chemical enterprises in domestic and established a good reputation and corporate image in the chemical field.

16853-85-3 Relevant articles

Nanoconfined lithium aluminium hydride (LiAlH4) and hydrogen reversibility

Lei Wang a , Aditya Rawal b , Md Zakaria Quadir b c , Kondo-Francois Aguey-Zinsou a

, International Journal of Hydrogen Energy Volume 42, Issue 20, 18 May 2017, Pages 14144-14153

In this work, we investigated the effects of nanoconfinement on the properties of lithium aluminium hydride (LiAlH4). Our study reveals that nanoconfined LiAlH4 releases hydrogen at much lower temperatures than feasible with bulk LiAlH4.

Lithium Aluminium Hydride and Metallic Iron: A Powerful Team in Alkene and Arene Hydrogenation Catalysis

Christian Knüpfer, Dr. Christian Färber, Dr. Jens Langer, Prof. Dr. Sjoerd Harder

, Angewandte Chemie International Edition, Volume135, Issue18 April 24, 2023 e202219016

Alkenes that normally do not react with LiAlH4 (3-hexene, cyclohexene, 1-Me-cyclohexene), can be reduced to the corresponding alkanes by a mixture of LiAlH4 and Fe0 (the iron was activated by Metal-Vapour-Synthesis).

16853-85-3 Process route

hydrogen
1333-74-0

hydrogen

lithium hydride

lithium hydride

aluminium
7429-90-5

aluminium

lithium aluminium tetrahydride
16853-85-3

lithium aluminium tetrahydride

Conditions
Conditions Yield
titanium(III) chloride; In tetrahydrofuran; at 20 ℃; for 4h; under 73132.3 - 73162.7 Torr; Product distribution / selectivity; Balled milled;
 
With Et3Al; In toluene; temp. <= 150°C; pressure H2 <= 150 bar; pptn. toluene from diethyl ether soln.;
 
lithium hexahydroaluminate

lithium hexahydroaluminate

hydrogen
1333-74-0

hydrogen

lithium hydride

lithium hydride

aluminium
7429-90-5

aluminium

lithium aluminium tetrahydride
16853-85-3

lithium aluminium tetrahydride

Conditions
Conditions Yield
titanium; In diethyl ether; ball milling mixture of LiH, aluminium comd. and aluminium, obtained by dehydrogenating of LiAlH4, in hydrogen at different pressure for 2 h, addn. of ether, ball milling for 2 h at different hydrogen pressure at room temp.;
0%
titanium; In neat (no solvent, solid phase); ball milling mixture of LiH, aluminium comd. and aluminium, obtained by dehydrogenating of LiAlH4, in hydrogen at 97.5 bar for 2 h; XRD analysis;
0%
titanium; In tetrahydrofuran; ball milling mixture of LiH, aluminium comd. and aluminium, obtained by dehydrogenating of LiAlH4, in hydrogen at different pressure for 2 h, addn. of THF, ball miling for 2 h at different hydrogen pressure at room temp.; filtration, drying in vac. at 60°C for 6 h, XRD analysis;
 

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