Gallium Trichloride, Anhydrous (GaCl3)
Gallium trichloride (GaCl3, gallium chloride) is the ideal precursor for gallium derivative compounds.
Thus, gallium trichloride is the starting material for gallium-based metal-organic precursors. Amongst these TMG (Tri-methyl gallium) is the most prominent choice for MOCVD deposition processes widely used in the compound semiconductor and LED industries.
Another important industrial use for gallium chloride is in the battery industry, specifically primary batteries that use a lithim thionyl chloride (LTC) battery chemistry. In these LTC batteries gallium chloride is the precursor material for the electrolyte salt (LiGaCl4).
Gallium chloride is a difficult material to handle ‐ it is very corrosive. The only acceptable packaging materials are hastelloy (a special, Ni based alloy) or borosilicate glass ‐ both very corrosion resistant. Since standard gallium trichloride is solid at room temperature it needs to be melted (MP~80°C) or dissolved using a chemical solvent.
Indium Corporation has developed a granulated form of gallium trichloride: EZ-Pour®. The gallium trichloride is pelletized without introducing any impurities into the material, and the finished product can easily be poured, e.g. while loading chemical reactors. Expensive hastelloy containers, and fittings to measure temperature, pressure, fill levels, etc. are not required.
EZ-Pour® is shipped in borosilicate glass containers with high-temperature rated PBT caps with a PTFE liner.
We supply gallium trichloride in solid and granulated form, and (typically) at 5N purity. To learn more about our gallium chloride offerings, contact us today. One of our dedicated engineers will be available to answer any questions.
Gallium Alloy Blog Posts
A new paper sparked my interest recently: Experimental Thermal Energy Assessment of a Liquid Metal Eutectic in a Microchannel Heat Exchanger Equipped With a (10Hz/50Hz) Resonator which talks about alternatives to liquid metal for high-temp heat exchange applications. Unfortunately, they left out my favorite alloy - eutectic gallium-indium or EGaInTM.
Indium Corporation manufactures 60 different alloys that contain indium, in addition to over 150 other non-indium-bearing alloys, such as SAC and SnPb.
Today I was sent an article that involves TWO of my favorite elements, indium and gallium which, when combined with tin, creates an alloy that is used in the process of water purification.
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From One Engineer to Another®
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