Trimethylaluminum
Trimethylaluminum (CAS 75-24-1), a highly reactive organoaluminum compound with the formula (CH3)3Al and a molecular weight of 72.09 g/mol, is a key precursor in various industrial processes. This volatile liquid is primarily used in chemical synthesis, materials science, and the micro/nanoelectronics industry. Its significant reactivity, particularly with water, necessitates careful handling and storage under inert conditions. TSS supplies Trimethylaluminum for research and industrial applications.
- IUPAC
- Aluminum trimethanide,TMA
- Synonyms
- Aluminum trimethanideTMA
CVD and ALD Precursor
Trimethylaluminum is widely employed as a precursor in Chemical Vapor Deposition (CVD) and Atomic Layer Deposition (ALD) processes. It is essential for the deposition of thin films, particularly aluminum oxide and aluminum nitride, which are critical in semiconductor manufacturing and microelectronics.
Catalyst in Polymerization
As an organometallic reagent, Trimethylaluminum serves as a co-catalyst or activator in Ziegler-Natta polymerization of olefins. It plays a crucial role in controlling polymer properties such as molecular weight and tacticity.
Chemical Synthesis
This compound is a versatile reagent in organic and organometallic synthesis. It is used for methylation reactions and as a Lewis acid catalyst in various chemical transformations, enabling the creation of complex organic molecules.
Materials Science
In materials science, Trimethylaluminum is utilised for the synthesis of novel aluminum-containing materials and nanoparticles. Its controlled decomposition allows for the formation of materials with specific electronic and structural properties.
| Molecular weight | 72.09 |
|---|---|
| Linear formula | (CH3)3Al |
| Assay | 97% |
| Form | liquid |
| Boiling point | 125-126 °C(lit.)128-130 °C/50 mmHg |
| Density | 0.752 g/mL at 25 °C(lit.) |
| Concentration | 2.0 M in hexanes |
| Melting point | 15 °C(lit.) |
| Vapour pressure | 69.3 mmHg (60 °C) |
Hazard statements
- H250Catches fire spontaneously if exposed to air
- H260In contact with water releases flammable gases
- H314Causes severe skin burns and eye damage
Precautionary statements
- P222Do not allow contact with air
- P223Do not allow contact with water
- P231Handle under inert gas
- P280Wear protective gloves, clothing and eye/face protection
- P370In case of fire
- P422
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -17 °C / 1.4 °F |
| Transport (UN / ADR) | UN 3394 4.2/PG 1 |
| Water hazard class (WGK, DE) | nwg |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 14-17-34 |
| Safety statements (S) | 16-43-45 |
| Supplemental hazards | Reacts violently with water. |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Trimethylaluminum used for?
+
Trimethylaluminum (TMA) is primarily used as a precursor in Chemical Vapor Deposition (CVD) and Atomic Layer Deposition (ALD) for thin film deposition in microelectronics, as a co-catalyst in olefin polymerization, and as a reagent in chemical synthesis and materials science.
What is the CAS number and chemical formula for Trimethylaluminum?
+
The CAS number for Trimethylaluminum is 75-24-1, and its linear formula is (CH3)3Al.
What grade and purity does Tech Serve Solutions supply for Trimethylaluminum?
+
Tech Serve Solutions supplies Trimethylaluminum with an assay of 97%. We do not represent this product as USP, BP, or EP grade; it is supplied for technical and research applications.
How should Trimethylaluminum be handled safely?
+
Trimethylaluminum is highly flammable and reacts violently with water (H250, H260, H314). It must be handled with extreme caution under an inert atmosphere (e.g., nitrogen or argon), away from moisture and ignition sources. Appropriate personal protective equipment, including faceshields, respirators, and chemically resistant gloves, is mandatory.
How is Trimethylaluminum packed, shipped, and exported by TSS?
+
Trimethylaluminum is shipped as a UN 3394 hazardous material (4.2/PG 1). Due to its hazardous nature, it is packed in specialised containers designed to maintain an inert atmosphere and prevent contact with air and moisture during transport. TSS is experienced in exporting such regulated chemicals globally.
How can I request a quote or sample of Trimethylaluminum?
+
To request a quote or a sample of Trimethylaluminum, please contact the TSS sales department via our website or by phone. Provide your specific requirements, and our team will assist you promptly.
▶ Related products
1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis
1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis