Gallium Oxide


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Gallium Oxide is a highly insoluble thermally stable Gallium source suitable for glass, optic and ceramic applications. The precipitation of the hydrated form of gallium oxide is caused by the neutralization of acidic or basic gallium salt solution. Oxide compounds are not conductive to electricity. However, certain perovskite structured oxides are electronically conductive finding application in the cathode of solid oxide fuel cells and oxygen generation systems. They are compounds containing at least one oxygen anion and one metallic cation. They are typically insoluble in aqueous solutions (water) and extremely stable making them useful in ceramic structures as simple as producing clay bowls to advanced electronics and in light weight structural components in aerospace and electrochemical applications such as fuel cells in which they exhibit ionic conductivity. Metal oxide compounds are basicanhydrides and can therefore react with acids and with strong reducing agents in redox reactions. Gallium Oxide is also available in pellets, pieces, powder sputtering targets, tablets, and nanopowder (from American Elements' nanoscale production facilities). See Nanotechnology for more nanotechnology applications information. Gallium Oxide is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. Additional technical, research and safety (MSDS) information is available.


Digallium oxygen(2-), Digallium trioxide, Gallium sesquioxide, Gallia, Oxo-oxogallanyloxy-gallane, Gallium(III) oxide, Gallium trioxide

Chemical Identifiers

Formula Ga2O3
CAS 12024-21-4
Pubchem CID 5139834
MDL MFCD00011020
EC No. 234-691-7
IUPAC Name Digallium oxygen(2-)
Beilstein Registry No. N/A
InchI Identifier InChI=1S/2Ga.3O


Compound Formula Ga2O3
Molecular Weight 187.44
Appearance White Powder
Melting Point 1,900° C (3,452° F)
Boiling Point N/A
Density 5.88 g/cm3
Exact Mass 187.835 g/mol
Monoisotopic Mass 185.835906 Da

Health & Safety Info  |  MSDS / SDS

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
Transport Information N/A
Globally Harmonized System of Classification and Labelling (GHS) N/A

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.

Related Products

GaSee more Gallium products. Gallium (atomic symbol: Ga, atomic number: 31) is a Block P, Group 13, Period 4 element with an atomic weight of 69.723.The number of electrons in each of Gallium's shells is 2, 8, 18, 3 and its electron configuration is [Ar] 3d10 4s2 4p1. The gallium atom has a radius of 122.1 pm and a Van der Waals radius of 187 pm. Gallium was predicted by Dmitri Mendeleev in 1871. It was first discovered and isolated by Lecoq de Boisbaudran in 1875. In its elemental form, gallium has a silvery appearance. Gallium is one of three elements that occur naturally as a liquid at room temperature, the other two being mercury and cesium. Gallium does not exist as a free element in nature and is sourced commercially from bauxite and sphalerite. Currently, gallium is used in semiconductor devices for microelectronics and optics. The element name originates from the Latin word 'Gallia', the old name of France, and the word 'Gallus,' meaning rooster.


Recent Research & Development for Gallium

  • The Inhibition of Escherichia coli Biofilm Formation by Gallium Nitrate-Modified Titanium. Zhu Y, Qiu Y, Chen R, Liao L. J Nanosci Nanotechnol. 11/1/2015
  • Synthesis of substituted ?-diketiminate gallium hydrides via oxidative addition of H-O bonds. Herappe-Mejía E, Trujillo-Hernández K, Carlos Garduño-Jiménez J, Cortés-Guzmán F, Martínez-Otero D, Jancik V. Dalton Trans. 9/30/2015
  • Synergistic efficacy of ?-radiation together with gallium trichloride and/or doxorubicin against Ehrlich carcinoma in female mice. Kandil E, Aziz NA. Tumour Biol. 9/28/2015
  • Initial Experience With Gallium-68 DOTA-Octreotate PET/CT and Peptide Receptor Radionuclide Therapy for Pediatric Patients With Refractory Metastatic Neuroblastoma. Kong G, Hofman MS, Murray WK, Wilson S, Wood P, Downie P, Super L, Hogg A, Eu P, Hicks RJ. J Pediatr Hematol Oncol. 9/28/2015
  • Immunosensing platform based on gallium nanoparticle arrays on silicon substrates. García Marín A, Hernández MJ, Ruiz E, Abad JM, Lorenzo E, Piqueras J, Pau JL. Biosens Bioelectron. 9/27/2015
  • Application and Dosimetric Requirements for Gallium-68-labeled Somatostatin Analogues in Targeted Radionuclide Therapy for Gastroenteropancreatic Neuroendocrine Tumors. Taïeb D, Garrigue P, Bardiès M, Abdullah AE, Pacak K. PET Clin. 9/23/2015
  • Is there a Role for Gallium-67 Citrate SPECT/CT, in Patients with Renal Impairment or Who are Renal Transplant Recipients, in Identifying and Localizing Suspected Infection? Nowosinska E, Navalkissoor S, Quigley AM, Buscombe JR. World J Nucl Med. 9/23/2015
  • Phase Tuning of Nanostructured Gallium Oxide via Hybridization with Reduced Graphene Oxide for Superior Anode Performance in Li-Ion Battery: An Experimental and Theoretical Study. Patil SB, Kim IY, Gunjakar JL, Oh SM, Eom T, Kim H, Hwang SJ. ACS Appl Mater Interfaces. 9/3/2015
  • Investigation of an Electrochemical Method for Separation of Copper, Indium, and Gallium from Pretreated CIGS Solar Cell Waste Materials. Gustafsson AM, Björefors F, Steenari BM, Ekberg C. ScientificWorldJournal. 8/7/2015
  • Origin of optical losses in gallium arsenide disk whispering gallery resonators. Parrain D, Baker C, Wang G, Guha B, Santos EG, Lemaitre A, Senellart P, Leo G, Ducci S, Favero I. Opt Express. 12/5/2012

Recent Research & Development for Oxides

  • Nitric oxide is involved in brassinosteroid induced alternative respiratory pathway in Nicotiana benthamiana seedlings' response to salt stress. Zhu T, Deng XG, Tan WR, Zhou X, Luo SS, Han XY, Zhang DW, Lin HH. Physiol Plant. 9/30/2015
  • Sc2O@C2v(5)-C80: Dimetallic Oxide Cluster Inside a C80 Fullerene Cage. Tang Q, Abella L, Hao Y, Li X, Wan Y, Rodríguez-Fortea A, Poblet JM, Feng L, Chen N. Inorg Chem. 9/30/2015
  • Use of ultrasmall superparamagnetic iron oxide particles for imaging carotid atherosclerosis. Usman A, Sadat U, Patterson AJ, Tang TY, Varty K, Boyle JR, Armon MP, Hayes PD, Graves MJ, Gillard JH. Nanomedicine (Lond). 9/29/2015
  • Structure and energetics of graphene oxide isomers: ab initio thermodynamic analysis. Chaban VV, Prezhdo OV. Nanoscale. 9/29/2015
  • Genotoxic and oxidative stress potential of nanosized and bulk zinc oxide particles in Drosophila melanogaster. Carmona ER, Inostroza-Blancheteau C, Rubio L, Marcos R. Toxicol Ind Health. 9/23/2015
  • The role of flow-independent exhaled nitric oxide parameters in the assessment of airway diseases. Paraskakis E, Vergadi E, Chatzimichael A, Bush A. Curr Top Med Chem. 9/23/2015
  • Investigations into Recycling Zinc from Used Metal Oxide Varistors via pH Selective Leaching: Characterization, Leaching, and Residue Analysis. Gutknecht T, Gustafsson A, Forsgren C, Ekberg C, Steenari BM. ScientificWorldJournal. 9/21/2015
  • Mitogen-activated protein kinases regulate expression of neuronal nitric oxide synthase and neurite outgrowth via non-classical retinoic acid receptor signaling in human neuroblastoma SH-SY5Y cells. Fujibayashi T, Kurauchi Y, Hisatsune A, Seki T, Shudo K, Katsuki H. J Pharmacol Sci. 9/5/2015
  • Polarization-Mediated Thermal Stability of Metal/Oxide Heterointerface. Zhang Q, You L, Shen X, Wan C, Yuan Z, Zhang X, Huang L, Kong W, Wu H, Yu R, Wang J, Han X. Adv Mater. 8/22/2015
  • Electrochemical imprinted polycrystalline nickel-nickel oxide half-nanotube-modified boron-doped diamond electrode for the detection of L-serine. Dai W, Li H, Li M, Li C, Wu X, Yang B. ACS Appl Mater Interfaces. 4/3/2015

Free Test Sample Program

We recognize many of our customers are purchasing small quantities directly online as trial samples in anticipation of placing a larger future order or multiple orders as a raw material for production. Since our primary business is the production of industrial quantities and/or highly consistent batches which can be used for commercial production and purchased repeatedly in smaller quantity, American Elements offers trial samples at no charge on the following basis. Within 6 months of purchasing materials directly online from us, you have the option to refer back to that order and advise that it is the intention of your company, institution or lab to either purchase a larger quantity, purchase the material in regular intervals or purchase more on some other basis.

We will then evaluate your future needs and assuming the quantity or number of future purchases qualify, we will fully credit your purchase price with the next order. Because of the many variables in the quantity and number of orders you may place, it is impossible to evaluate whether your future order(s) will qualify for this program prior to your placing your next order. Please know American Elements strongly desires to make this free sample program available to you and will make every effort to do so once your next order is placed.