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42836 Trimethylaluminum, 25% w/w in hexane

CAS Number

Stock No. Size Price ($) Quantity Availability
42836-AE 100ml 54.50
42836-AP 500ml 178.00
42836-AY *4x500ml 504.00
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Trimethylaluminum, 25% w/w in hexane


Chemical Properties

Formula Weight
Flash Point
Storage & Sensitivity
Moisture Sensitive. Air Sensitive. Store under Argon. Ambient temperatures.
Soluble in aromatic, saturated aliphatic and cycloaliphatic hydrocarbons.


Trimethylaluminum is used as an intermediate in the production of methylaluminoxane. It is employed as a methylating agent in synthetic chemistry. It is also used in semiconductor fabrication to deposit thin film. It is involved in Tebbe's reagent, which is used for the methylenation of esters and ketones. It acts as an activator for Ziegler-Natta catalysts for olefin polymerization. It plays an important role in the Oppenauer oxidation reaction to prepare aldehydes and ketones. Further, it is used as plating agents and surface treating agents.


2.2-2.4MAir and moisture sensitive. Incompatible with strong oxidizing agents, water, acids, alcohols, oxygen and organic halides.

Literature References

Kerber, R. N.; Kerber, T.; Rozanska, X.; Delbecq, F.; Sautet, P. Grafting trimethylaluminum and its halogen derivatives on silica: general trends for 27 Al SS-NMR response from first principles calculations. Phys. Chem. Chem. Phys. 2015, 17 (40), 26937-26945.

Erickson, J. D.; Fettinger, J. C.; Power, P. P. Reaction of a Germylene, Stannylene, or Plumbylene with Trimethylaluminum and Trimethylgallium: Insertion into Al-C or Ga-C Bonds, a Reversible Metal-Carbon Insertion Equilibrium, and a New Route to Diplumbenes. Inorg. Chem. 2015, 54 (4), 1940-1948.

GHS Hazard and Precautionary Statements

Hazard Statements: H225-H260-H314-H318-H361-H336-H373-H304

Highly flammable liquid and vapour. In contact with water releases flammable gases which may ignite spontaneously. Causes severe skin burns and eye damage. Causes serious eye damage. Suspected of damaging fertility or the unborn child. May cause drowsiness or dizziness. May cause damage to organs through prolonged or repeated exposure. May be fatal if swallowed and enters airways.

Precautionary Statements: P223-P301+P310a-P303+P361+P353-P305+P351+P338-P405-P501a

Keep away from any possible contact with water, because of violent reaction and possible flash fire. IF SWALLOWED: Immediately call a POISON CENTER/doctor IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Hazard Class
Packing Group
Harmonized Tariff Code


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