Gallium metal is silvery white minor metal with low melting point and high boiling point, which is liquid when temperature above 29℃, but solid when temperature under it. It is also soft even when solid.Ga is avaliable in liquid, solid, granule. Liquid gallium tends to undercool that mean it would’t solidify even temperature under 0℃. It slightly dissolve in mercury and form gallium amalgam. Liquid gallium can infiltrate glass, so it cannot use glass container to store.
Gallium compounds are good semiconductor material, which are widely used in optoelectronics industry and micrwave communication industry. They are for production of microwave communication and microwave integrated, infrared optics and infrared detector, integrated circuit, luminous diode and so on.
Gallium Metal
Purity:99.99%, 99.999%, 99.99999%
| CAS No.:7440-55-3 | EINECS No.:231-163-8 | Molecular Formula:Ga | Molecular Weight:69.723 |
| Melting Point:29.76℃ | Boiling Point:2403℃ | Density:5.095 | UN2803 8/PG 3 |
Applications
Gallium element mainly apply to produce semiconductor compounds as gallium arsenide, gallium nitride, gallium phosphide and so on. It is also dopant for semiconductor germanium wafer, silicon wafer.
Ga element with purity 99.99999% is main raw material for gallium arsenide, gallium phosphide and gallium antimonide. Gallium Arsenide is raw material for a kind of solar cell, which is with good heat resistance and radiation resistance. CIGS thin film solar cell is the third solar cell. Those are for LED and infrared device manufacturing. 8N Ga metal is mainly for preparing superlattice as gallium source of MBE, quantum well and other advanced semiconductor deveices.
High purity gallium liquid metal can be as additive for permanent magnet material and other alloys. It is also raw material for high purity alloys.
Liquid gallium is raw material for gallium eutectic alloys as gallium-vanadium, gallium-lithium, gallium-zirconium, gallium-indium-tin(GIS) and so on. Those alloys are as superconductor. Ga element is essential raw material for low-melting alloys as bismuth alloys, zinc alloys, lead alloys, indium alloys, tin alloys and so on.
Ga, In, Tl, Sn, Bi, Zn could form a serie of low melting alloys with melting point 3℃-65℃. They could replace mercury in temperature measurement, as metal coatings, cooling cirucit of electronic industry and nuclear industry. For example 25%In-Ga alloy melt at 16℃, which could be for automatic fire extinguishing device. Ga, Cu, Ni, Sn, Au could form cold soler, which is fit for special-shaped thin wall and cold soldering and filling empty hold among metals and ceramics.
High purity gallium metal could be dopant for germanium wafer and silicon wafer.