Product: 16853-85-3 Lithium Aluminium Hydride

Lithium Aluminum Hydride, typ. 15 % solution in THF / Toluene (typ. 3.5 M)

LiAlH4

CAS Number:  16853-85-3 EC Number:  240-877-9 REACH Number:  01-2119919039-36-0000

Lithium Aluminum Hydride (CAS 16853-85-3) is a complex metal hydride with molecular formula LiAlH4 supplied as a solution in THF/Toluene (typically 15%, ~3.5 M).

Lithium Aluminum Hydride is a strong versatile reducing agent applied broadly in organic chemical synthesis. It brings benefits through its strong reducing power, high hydride content and low amount of hydroxide precipitate upon work-up compared with other common hydride reducing agents.

Lithium Aluminum Hydride reacts readily with moisture and air and should be handled under dry, inert conditions. Consult the SDS and site-specific procedures for compatible materials, fire response, and storage.

Request A Quote Download TDS Request SDS
Physical and Chemical Properties
Property Value
IUPAC Name
lithium alumanuide
Molecular Weight
37.95g/mol
Appearance
Liquid
Color
Gray
Flash Point
-21.2 °C 1,013 hPa (Tetrahydrofuran)
Boiling Point
65 °C at 1,013 hPa (Tetrahydrofuran)
Density
ca. 0.89 g/cm3 at 20 °C
Solubility in Water
(Not applicable)
Additional Properties
Solvent: Tetrahydrofuran / Toluene (2.4 : 1) Molarity: abt. 3.5 Decompostion rate: abt. 0.2 % per month (20 °C, based on total activity)

Applications

Versatile reducing agent for organic chemical and phamaceutical industry.

Specifications

  • Lithium Aluminum Hydride: 14.5 - 15.5 %

    Method of Analysis

    Oxidimetric determination of active hydrogen content (Felkin’s method): Oxidation by a solution of iodine, followed by back-titration of excess iodine with sodium thiosulphate solution.

    Handling Instructions

    Dilute spilled solution with paraffin oil (but never with halogenated hydrocarbons, alcohols, ketons, esters etc.) and cover with ground limestone or cement. The soaked material should then be taken to a safe place and be decomposed from a safe distance by a jet of water. Pay also attention to the official safety regulations (see: „Marking“). The safety data sheet is available on request. Please see also our brochure “Lithium Aluminum Hydride”. In use may form flammable/explosive vapor- air mixtures. Harmful in contact with skin and if swallowed. Keep under argon or nitrogen. Keep container in a well ventilated place. Never add water to this product. Take precautionary measures against static discharges. In case of fire use powder based on sodium chloride or limestone powder. Never use water, halons or carbon dioxide.

    Storage Instructions

    When stored according to the SDS, the solutions are fairly stable. However, even at room temperature slight decomposition with evolution of hydrogen is observed after prolonged storage. Decomposition rate: abt. 0.2 % per month (20 °C based on total activity). As decomposition accelerates with temperature, we recommend not to (continued) exceed a storage temperature of 20 °C and to use the product within a period of six months after receipt. Higher temperatures can be temporarily accepted, for example, during transport but should not exceed 35°C.

    Legal Disclaimer

    The information presented herein is believed to be accurate and reliable but is presented without guarantee or responsibility on the part of Albemarle Corporation and its subsidiaries and affiliates. It is the responsibility of the user to comply with all applicable laws and regulations and to provide for a safe workplace. The user should consider any health or safety hazards or information contained herein only as a guide and should take those precautions which are necessary or prudent to instruct employees and to develop work practice procedures in order to promote a safe work environment. Further, nothing contained herein shall be taken as an inducement or recommendation to manufacture or use any of the herein materials or processes in violation of existing or future patent.

    Related