Gallium
Introduction of Gallium
Gallium is a silvery metal with a shiny surface and was discovered by the French chemist Lecoq de Boisbaudran in 1875. Gallium is recovered as a byproduct during alumina production. It is one of the few metals that melt just above room temperature.
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Physical Properties of Gallium
Ga melts at around 29°C (85°F) and boils at about 2403°C (4357°F). This makes it very easy to handle because it will not burn your skin when touched. Its boils point nearly nine times higher than its melting point on the absolute scale, the greatest ratio between melting point and boiling point of any element
Chemical Properties of Gallium
| Atomic Symbol | Ga |
|---|---|
| Atomic Number | 32 |
| Atomic Weight | 72.63 |
| Density | 5.323 g/cm3 |
| Melting Point: | 29.78℃ |
| Boiling Point | 2403℃ |
| CAS No. | 7440-55-3 |
| EINECS No. | 231-163-8 |
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Applications of Gallium
The following are the application areas of gallium:
Semiconductors:
Gallium can be used to prepare III-V compound semiconductors, such as gallium nitride, gallium arsenide and gallium antimony.
Thin film:
Can be used for CIGS thin film solar materials, LED, etc
MBE process:
Gallium chloride Ultra-high purity gallium can be used in MBE process
Nuclear reaction:
Gallium and low-melt alloys can be used as heat exchange media for nuclear reaction
Electronic Industry:
GaO as a High Purity Analytical Reagent and Semiconductor Material for the Electronic Industry Ga is a source for manufacturing electronic components such as light emitting diodes.
Thermometers:
It can be used as filler for high temperature thermometers and as catalyst for diesterification in organic reactions.
MOCVD process:
Gallium trichloride can be used in MOCVD process and is used for spectroscopic analysis and organic reaction catalysts to synthesize important raw materials of organic gallium reagents
Other Uses:
Trimethylgallium and triethylgallium can be used to make solar cells. The raw materials of MOCVD process are used to prepare GaAs, AsGaAl and other semiconductor compounds. Ga is a source for manufacturing electronic components such as light emitting diodes.