Trimethylaluminum
ALDRICH/257222 - 97%
Synonym: Aluminum trimethanide; TMA
CAS Number: 75-24-1
Empirical Formula (Hill Notation): C3H9Al
Molecular Weight: 72.09
EC Number: 200-853-0
MDL Number: MFCD00008252
Linear Formula: (CH3)3Al
Product Type: Chemical
| assay | 97% |
| bp | 125-126 °C (lit.) |
| 127 °C/760 mmHg | |
| 20 °C/8 mmHg | |
| 56 °C/50 mmHg | |
| density | 0.752 g/mL at 25 °C (lit.) |
| description | heat of vaporization: ~41.9 kJ/mol (dimer) |
| form | liquid |
| InChI | 1S/3CH3.Al/h3*1H3; |
| InChI key | JLTRXTDYQLMHGR-UHFFFAOYSA |
| mp | 15 °C (lit.) |
| Quality Level | 200  |
| reaction suitability | core: aluminum |
| SMILES string | C[Al](C)C |
| vapor pressure | 69.3 mmHg ( 60 °C) |
| Application: | Trimethylaluminum can be used: • As a growth initiator to synthesize self-assembled aluminum nanoparticles via atomic layer deposition. • As a precursor to synthesize aluminum-doped ZnO thin films(AZO) for electron transport layer of perovskite solar cells. TMA enhances electrical conductivity and thermal stability of perovskite layers. • To fabricate Al2O3-coated Si-alloy anodes for Li-ion batteries. This coating helps to suppress the volume expansion of Si and improves cell stability. • To fabricate Al2O3-coated graphite electrode with superior anti-self-discharging behavior (260 h) with long stability (900 cycles), for Al-ion battery. |
| General description: | Trimethylaluminum (TMA) is a widely used precursor in the chemical vapor deposition (CVD) process to produce thin films in various applications. TMA is highly reactive and pyrophoric, which makes it an effective source of aluminum in thin film deposition processes to improve optoelectronic properties, such as enhanced light absorption and carrier transport characteristics. |
| Legal Information: | Aldrich is a registered trademark of Sigma-Aldrich Co. LLC |
| Legal Information: | Sure/Pac is a trademark of Sigma-Aldrich Co. LLC |
| Other Notes: | Storage below 20°C may cause crystallization. |
| Packaging: | 100 g in Sure/Pac™ |
| Packaging: | Supplied in a Sure/Pac™ cylinder with a 1/4-turn bronze ball valve (Z122661 ) installed. This has a female 1/4"" NPT outlet thread and is closed with a male 1/4"" NPT carbon steel plug. The plug must be removed before use after ensuring the valve is in the closed position. Compatible with the following:• Aldrich® Sure/Pac™ station for liquefied gases Z566446 • PTFE Sealing tape Z104388 or Z221880 • Straight septum-inlet adapter Z118141 with septa Z565687 or Z565695 For instructions please refer to technical bulletin AL-136: The Aldrich Sure/Pac™ Cylinder System |
| Symbol |   GHS02,GHS05 |
| Signal word | Danger |
| Hazard statements | H250 - H260 - H314 |
| Precautionary statements | P210 - P222 - P231 + P232 - P280 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | F,C |
| Risk Statements | 14-17-34 |
| Safety Statements | 16-43-45 |
| RIDADR | UN 3394 4.3(4.2) / PGI |
| WGK Germany | nwg |
| Flash Point(F) | No data available |
| Flash Point(C) | No data available |
| Supplemental Hazard Statements | EUH014 |
| Purity | 97% |
| bp | 125-126 °C (lit.); 127 °C/760 mmHg; 20 °C/8 mmHg; 56 °C/50 mmHg |
| mp | 15 °C (lit.) |
| Density | 0.752 g/mL at 25 °C (lit.) |
| UNSPSC | 12352103 |