Lithium aluminium hydride

Lithium aluminium hydride Property

mp : 125 °C (dec.)(lit.) bp : 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

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 Chemical Properties,Usage,Production

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.

Lithium aluminium hydride Preparation Products And Raw materials

Raw materials

Preparation Products 2-[4-(TRIFLUOROMETHYL)PHENYL]-1,3-THIAZOLE-4-CARBALDEHYDE Toremifene 2-(2-FLUORO-PHENYL)-ETHANESULFONYL CHLORIDE 4-TERT-BUTYLBENZYL ALCOHOL 1-(2-NAPHTHYL)METHANAMINE 4-MORPHOLINOBENZYLAMINE 3-FLUORO-N-METHYLANILINE (R)-TERT-LEUCINOL Tetrahydropyranyl-4-acetic acid 2H-1,4-BENZODIAZEPIN-2-ONE, 7-CHLORO-1-(CYCLOPROPYLMETHYL)-5-(2-FLUOROPHENYL)-1,3-DIHYDRO- 3-[(N-(TERT-BUTYLOXYCARBONYL)AMINO)METHYL]PYRIDINE 3-(3,4-DIMETHOXY-PHENYL)-PROPYLAMINE 3-(Aminomethyl)pyridine L(+)-Leucinol 2-Chloroisonicotinaldehyde 4-METHYL-2-[4-(TRIFLUOROMETHYL)PHENYL]-1,3-THIAZOLE-5-CARBALDEHYDE 2-NAPHTHALEN-1-YL-ETHYLAMINE 2-FLUOROPHENETHYL ALCOHOL [6-(1-PYRROLIDINYL)-3-PYRIDINYL]METHANOL L-Tryptophanol 3,5-Difluoropyridine 3-Methylbenzylamine 2,5-Dimethylpiperazine 3-(4-METHOXY-PHENYL)-PROPYLAMINE 5-(2-Hydroxyethyl)-4-methylthiazole (1-phenylcyclopropyl)methanamine (S)-2-(N，N-disubstitued aminomethy)indoline 4-HYDROXYMETHYL-NICOTINIC ACID 2,4-DIPHENYL-1,3-THIAZOLE-5-CARBALDEHYDE trans-4-Aminocyclohexanol (5-METHYL-1-PHENYL-1H-PYRAZOL-4-YL)METHANOL 4-(BOC-AMINOMETHYL)PYRIDINE N-(2-Aminoethyl)piperidine (4-AMINO-PYRIDIN-3-YL)-METHANOL KRYPTOFIX(R) 221 2-METHYLPHENETHYL ALCOHOL 2-(4-BIPHENYL)ETHYLAMINE Vinylferrocene 2-AMINO-1-PHENYLETHANOL (1,5-DIMETHYL-1H-PYRAZOL-3-YL)METHANOL

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