Lithium aluminium hydride 16853-85-3 CAS NO.16853-85-3

Product Name: Lithium aluminium hydride
Synonyms: Aluminate (1-), tetrahydro-, lithium;Aluminate(1-), tetrahydro-, lithium, (T-4)-;Aluminum lithium hydride;LiAlH4;Lithium aluminohydride;Lithium aluminum tetrahydride;Lithium tetrahydroaluminate(1-);lithiumaluminumhydride,ethereal
CAS: 16853-85-3
MF: AlH4Li
MW: 37.95
EINECS: 240-877-9
Product Categories: Inorganics;Al (Alminum) Compounds;Classes of Metal Compounds;Li (Lithium) Compounds;Reduction;Synthetic Organic Chemistry;Typical Metal Compounds;Aluminum Hydrides;Synthetic Reagents;metal hydrides;Alternative Energy;Aluminum Hydrides;Chemical Synthesis;Materials for Hydrogen Storage;Materials Science;Synthetic Reagents;25mL Sure/Seal Reagents;Organometallic Reagents
Mol File: 16853-85-3.mol
Lithium aluminium hydride Structure
Lithium aluminium hydride Chemical Properties
Melting point  125 °C (dec.)(lit.)
Boiling point  0°C
density  0.97 g/mL at 20 °C
Fp  99 °F
storage temp.  2-8°C
form  tablets (~0.5 g each)
Water Solubility  Reacts
Sensitive  Air & Moisture Sensitive
Merck  14,349
Stability: Stable. Reacts violently with water, liberating hydrogen. Incompatible with strong oxidizing agents, alcohols, acids.
CAS DataBase Reference 16853-85-3(CAS DataBase Reference)
NIST Chemistry Reference Lithium tetrahydroaluminate(16853-85-3)
EPA Substance Registry System Aluminate(1-), tetrahydro-, lithium, (T-4)-(16853-85-3)
Safety Information
Hazard Codes  F,C,Xi,Xn,F+,T
Risk Statements  15-34-14/15-11-36/37-19-40-10-67-66-22-12-35-37-65-48/20-63-36/38-61-60
Safety Statements  43-7/8-6A-45-43B-36/37/39-33-26-16-24/25-27-29-62-53
RIDADR  UN 3399 4.3/PG 1
WGK Germany  2
RTECS  BD0100000
F  10-21
TSCA  Yes
HazardClass  4.3
PackingGroup  I
Hazardous Substances Data 16853-85-3(Hazardous Substances Data)

Lithium aluminium hydride Usage And Synthesis
Chemical Properties Clear colourless liquid
Usage Reactant or reagent for: • ;The preparation of thermoplastic polyester polyamides from oleic acid1• ;Lithium-polymer batteries2• ;Hydrodefluorination of gem-difluoromethylene derivatives3• ;Asymmetric aldol reactions4• ;Synthesis of Li-Al-N-H composites with hydrogen absorption / desorption properties5LAH is a powerful reducing agent for many different reduction reactions such as that of ketones to alcohols6
Usage Reactant or reagent for: &bull The preparation of thermoplastic polyester polyamides from oleic acid &bull Lithium-polymer batteries &bull Hydrodefluorination of gem-difluoromethylene derivatives &bull Asymmetric aldol reactions &bull Synthesis of Li-Al-
General Description A white powder that turns gray on standing. If spread out over a large flat combustible surface, friction can cause ignition. Used to make other chemicals, as a polymerization catalyst, as a hydrogen source, and as a propellant.
Air & Water Reactions Reacts with water vigorously attaining incandescence and ignition of evolved hydrogen [Kelen, Cahiers, 1977, (86), 100]. Reactions with water or moist air (or heated air) are violent and may be explosive [Schmidt, D.L., et al. Inorg. Synth. 1973. p. 14, 51].
Reactivity Profile Lithium aluminium hydride is a powerful reducing agent. React violently on contact with many oxidizing agents. Ignites by friction, especially if powdered. Reacts vigorously with hydroxy compounds such as water, alcohols, carboxylic acids [Mellor 2 Supp. 2:142. 1961]. Caused a violent explosion when used to dry diethylene glycol dimethyl ether: Ignition may have been caused by heat from reaction with impurity water or perhaps decomposition of peroxides in the ether. About 75% of the ether had been removed when the explosion occurred [MCA Case History 1494. 1968]. Reduces carbon dioxide or sodium hydrogen carbonate to methane and ethane at elevated temperatures. These flammable or explosive gases can form when CO2 extinguishers are used to fight hydride fires. Forms explosive complexes with ether, dimethylamine and various tetrazoles. Tetrazoles include, 2-methyl, 2-ethyl, 5-ethyl, 2-methyl-5-vinyl, 5-amino-2-ethyl [US Pat. 3 396 170, 1968].
Health Hazard Contact of solid with eyes and skin causes severe burns similar to those caused by caustic soda.
Fire Hazard Behavior in Fire: Decomposes at 257°F to form hydrogen gas. The heat generated may cause ignition and/or explosion.