TRIMETHYLGALLIUM
Synonym(s):Me3Ga;TMG;TMGa
- CAS NO.：1445-79-0
- Empirical Formula: C3H9Ga
- Molecular Weight: 114.83
- MDL number: MFCD00014841
- EINECS: 215-897-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 17:34:48
What is TRIMETHYLGALLIUM?
Description
Trimethylgallium is a colorless, transparent and toxic liquid at room temperature and pressure. It is easily oxidized in the air, spontaneously ignites at room temperature, and emits white smoke of metal oxides when burning.
The Uses of TRIMETHYLGALLIUM
Trimethylgallium can be used in metal organic chemical vapor deposition (MOCVD) to prepare semiconductor compounds such as GaAs, AsGaAl, etc. It is a gallium source for the manufacture of electronic components such as light-emitting diodes, and is also used in the manufacture of solar cells.
Synthesis
The reaction of methylmagnesium iodide and gallium trichloride generates trimethyl gallium ether complex, and the complex dissociates to generate Trimethylgallium.
Properties of TRIMETHYLGALLIUM
| Melting point: | -15,8°C |
| Boiling point: | 55,7°C |
| Density | 1,151 g/cm3 |
| Flash point: | -18°C |
| form | liquid |
| color | colorless |
| Specific Gravity | 1.1151 |
| Hydrolytic Sensitivity | 10: reacts extremely rapidly with moisture and oxygen - may be pyrophoric - sealed system required |
| Sensitive | moisture sensitive |
| EPA Substance Registry System | Trimethylgallium (1445-79-0) |
Safety information for TRIMETHYLGALLIUM
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H250:Pyrophoric liquids; Pyrorophoric solids H260:Substances And Mixtures Which, In Contact With Water,Emit Flammable Gases H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P231+P232:Handle under inert gas. Protect from moisture. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P370+P378:In case of fire: Use … for extinction. P422:Store contents under … |
Computed Descriptors for TRIMETHYLGALLIUM
| InChIKey | XCZXGTMEAKBVPV-UHFFFAOYSA-N |
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