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Gallium , Ga
Gallium is a chemical element that has the symbol Ga and atomic number 31. A soft silvery metallic poor metal, gallium is a brittle solid at low temperatures but liquefies slightly above room temperature and will melt in the hand. It occurs in trace amounts in bauxite and zinc ores. An important application is in the compounds gallium nitride and gallium arsenide, used as a semiconductor, most notably in light-emitting diodes (LEDs).
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Custom EnquiryGaSb Pieces 6mm & smaller 99.99% Pure
Gallium Antimonide
UN2803 8 PG III
GaAs Pieces 3-12mm 99.999% Pure
Gallium Arsenide
UN3290 6.1 PG II
Ga2O3 Pieces 3-12mm (sintered) 99.999% Pure
Gallium Oxide
GaP Pieces 6mm & smaller 99.999% Pure
Gallium Phosphide
GaSe Pieces 6mm & smaller 99.999% Pure
Gallium Selenide
UN3283 6.1 PG III
Ga2Se3 Pieces 1-6mm 99.999% Pure
Gallium Selenide
UN3283 6.1 PG III
Ga2Se3 less than 6mm Pieces 99.99% Pure
Gallium Selenide
UN3283 6.1 PG III
GaS Pieces 6mm & smaller 99.999% Pure
Gallium Sulphide
UN3132 4.3 PG I
GaTe Pieces 6mm & smaller 99.999% Pure
Gallium Telluride
UN2803 8 PG III
Ga2Te3 Pieces 6mm & smaller 99.999% Pure
Gallium Telluride
UN2803 8 PG III
Ga2Te3 Pieces 1-10mm 99.999% Pure
Gallium Telluride
UN2803 8 PG III
GaF3 -20 Mesh 99.95% Pure
Gallium Fluoride
UN1759 8 PG II
GaF3-3H2O -60 Mesh 99.9% Pure
Gallium Fluoride
UN1759 8 PG II
GaN -100 Mesh 99.9% Pure
Gallium Nitride
Ga2O3 -325 Mesh (typ. =5 microns) 99.999% Pure
Gallium Oxide
Ga2S3 Powder -100 Mesh 99.9+% Pure
Gallium Sulphide
UN3132 4.3 PG I
Gallium oxide Ga2O3, Purity 99.99%
Gallium selenide GaSe, Purity 99.99%
Gallium Selenide Ga2Se3, Purity 99.99%
Gallium oxide-SnO2,
Available in various ratios wt% or at%, Purity 99.99%
Gallium phosphide GaP, Purity 99.99%
Gallium arsenide GaAs, Purity 99.999%
Gallium antimonide GaSb, Purity 99.99% & 99.999%
Gallium oxide doped with Si,
Available in various ratios wt% or at%, Purity 99.95%
Gallium- Indium- Zinc Oxide (GIZO)
Available in various ratios wt% or at%, Purity 99.99%
Gallium-Palladium GaPd2, Purity 99.95%
Gallium Sulphide Ga2S3, Purity 99.99%
Gallium Sulphide GaS, Purity 99.99%
Gallium-Tellurium GaTe, Purity 99.99%
Gallium-Tellurium Ga2Te3, Purity 99.99%
Gallium Nitride GaN, Purity 99.99%
Gallium oxide-Magnesium oxide Ga2O3-MgO,
Available in various ratios wt% or at%, Purity 99.99%
Ga2O3 TRG 50.8mm dia. x 4.5mm Tk 99.99% Pure
Gallium Oxide
Ga2O3 TRG 50.8mm dia. x 3.18mm Tk 99.99% Pure
Gallium oxide
Ga2O3 TRG 25.4mm dia. x 6.35mm Tk 99.99% Pure
Gallium oxide
Ga2O3 TRG 3'' dia. x 0.125'' Tk 99.99% Pure
Gallium oxide
Ga2O3 TRG 76.2mm dia. x 3mm Tk 99.99% Pure
Gallium oxide
Ga2O3 TRG 50.8mm dia. x 3mm Tk 99.99% Pure
Gallium oxide
Ga2O3 TRG 50.8mm dia. x 3mm Tk 99.995% Pure
Gallium oxide
GaSe TRG 25.4mm dia. x 6.35mm Tk 99.99% Pure
Gallium selenide
Ga2Se3 TRG 25.4mm dia. x 5mm Tk 99.99% Pure
Gallium selenide
Ga2Se3 TRG 25.4mm dia. x 3mm Tk 99.99% Pure
Gallium Selenide
Ga2S3 TRG 25.4mm dia. x 6.35mm Tk 99.99% Pure
Gallium Sulphide
Ga2S3 TRG 25.4mm dia. x 3mm Tk 99.99% Pure
Gallium Sulphide
GaS TRG 25.4mm dia. x 6.35mm Tk 99.99% Pure
Gallium sulphide
GaS TRG 25.4mm dia. x 3mm Tk 99.99% Pure
Gallium Sulphide
GaTe TRG 25.4mm dia. x 3mm Tk 99.99% Pure
Gallium Telluride
Ga2Te3 TRG 25.4mm dia. x 3mm Tk 99.99% Pure
Gallium Telluride
Ga2Te3 TRG 50.8mm dia x 4mm Tk 99.99% Pure
Gallium Telluride
GaN TRG 25.4mm dia. x 3.18mm Tk 99.99% Pure
Gallium Nitride
GaN TRG 50.8mm dia. x 3.18mm Tk 99.99% Pure
Gallium Nitride
GaN TRG 25.4mm dia. x 3mm Tk 99.99% Pure
Gallium nitride
GaN TRG 50.8mm dia. x 5mm Tk 99.99% Pure
Gallium Nitride
GaN TRG 76.2mm dia. x 3mm Tk 99.99% Pure
Gallium Nitride
Elemental gallium is not found in nature, but it is easily obtained by smelting. Very pure gallium metal has a brilliant silvery color and its solid metal fractures conchoidally like glass. Gallium metal expands by 3.1 percent when it solidifies, and therefore storage in either glass or metal containers is avoided, due to the possibility of container rupture with freezing. Gallium shares the higher-density liquid state with only a few materials like germanium, bismuth, antimony and water.
Gallium also attacks most other metals by diffusing into their metal lattice. Gallium for example diffuses into the grain boundaries of Al/Zn alloys or steel., making them very brittle. Also, gallium metal easily alloys with many metals,[citation needed] and was used in small quantities in the core of the first atomic bomb to help stabilize the plutonium crystal structure.
The melting point temperature of 30°C allows the metal to be melted in one's hand. This metal has a strong tendency to supercool below its melting point/freezing point, thus necessitating seeding in order to solidify. Gallium is one of the metals (with caesium, rubidium, francium and mercury) which are liquid at or near normal room temperature, and can therefore be used in metal-in-glass high-temperature thermometers. It is also notable for having one of the largest liquid ranges for a metal, and (unlike mercury) for having a low vapor pressure at high temperatures. Unlike mercury, liquid gallium metal wets glass and skin, making it mechanically more difficult to handle (even though it is substantially less toxic and requires far fewer precautions). For this reason as well as the metal contamination problem and freezing-expansion problems noted above, samples of gallium metal are usually supplied in polyethylene packets within other containers.