Product: 16853-85-3 Lithium Aluminium Hydride

Lithium Aluminum Hydride, sieved (< 1 mm)

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 supplied as a sieved ( 1 mm) powder with molecular formula LiAlH4. It typically has a white to light grey appearance.

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. For convenient industrial usage, the packaging of solid Lithium Aluminum Hydride includes solvent-soluble Secubags that enable direct transfer into the reactor. Consult the SDS and site-specific procedures for compatible materials, fire response, and storage.

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Physical and Chemical Properties
Property Value
IUPAC Name
lithium alumanuide
Molecular Weight
37.95g/mol
Appearance
Powder
Color
White To Light Gray
Density
0.9 g/cm3
Bulk Density
400 kg/m3
Solubility in Water
(Not applicable)
Solubility in Other Solvents
  • ca. 278 g/l at 25: °C Medium: Diethylether
  • ca. 134 g/l at 25: °C Medium: Tetrahydrofuran
  • ca. 15 g/l at 25: °C Medium: Di-n-butyl ether
  • ca. 1 g/l at 25: °C Medium: Dioxane
  • Molecular weight: 37.95 g/mol
  • Thermal: Stability
  • Appreciable decomposition with evolution of hydrogen at 125: °C and above
Thermal Stability
Appreciable decomposition with evolution of hydrogen at 125 °C and above
Additional Properties
Theoretical hydrogen content: 10.62 % equivalent to 2.36 litres (stp) of hydrogen per g evolved in hydrolysis

Applications

Versatile reducing agent for organic chemical and phamaceutical industry.

Specifications

  • Lithium Aluminum Hydride: min. 97 % sieved (< 1mm)

    Method of Analysis

    Volumetric determination after hydrolysis by aqueous dioxane. Detailed description available on request.

    Handling Instructions

    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 dust-air mixtures. Harmful in contact with skin and if swallowed. Keep container in a well-ventilated place. Keep under argon or nitrogen. 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 SDS, the material has fair stability, however within a certain period of time a slight grey discolouration (aluminum precipitation) with generation of hydrogen will be observed at ambient temperature. We recommend to use lithium aluminum hydride 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.

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