London Chemicals & Resources Ltd (LCR) is an international distributor, stockist and supplier of industrial inorganic chemicals including Gallium Oxide.
Global Customer Base
We hold several agencies and serve a global customer base both directly and via a network of local agents. LCR is committed to providing efficient service and competitive pricing to all customers.
Working closely with several producer principals around the world, quality, consistency and reliability are all important watchwords for LCR ensuring that our customers return again and again.
Raw materials are supplied for a wide range of applications including the battery, catalyst, ceramic, fertiliser, glass, plating, refinery, superalloy and other industries. Our materials are usually packed in drums or bags in accordance with UN, CLP and other applicable local and international regulations.
Wide Range of Quantities Available
We deliver to our customers in quantities ranging from single bags or drums to thousands of tonnes. Transportation by air, sea, rail and truck can be arranged and all deliveries are made according to latest INCOTERMS.
Our experienced, friendly and knowledgeable staff at LCR are familiar with relevant legislation, transport procedures and documentation including REACH, SDSs and ADR.
LCR’s range includes inorganic chemicals, minerals and noble ferroalloys, click here for the full range.
What Is Gallium Oxide?
Gallium(III) trioxide is an inorganic compound with the formula Ga2O3. It exists as several polymorphs, all of which are white, water-insoluble solids. Although no commercial applications exist, Ga2O3 is an intermediate in the purification of gallium, which is consumed almost exclusively as gallium arsenide
Gallium trioxide is precipitated in hydrated form upon neutralization of acidic or basic solution of gallium salt. Also, it is formed on heating gallium in air or by thermally decomposing gallium nitrate at 200–250 ˚C. It can occur in five different modifications, α, β, γ, δ, and ε. Of these modifications β-Ga2O3 is the most stable form.
- β-Ga2O3 is prepared by heating nitrate, acetate, oxalate or other organic derivatives above 1000 °C.
- α-Ga2O3 can be obtained by heating β-Ga2O3 at 65 kbars and 1100 °C. The hydrated form can be prepared by decomposing precipitated and “aged” gallium hydroxide at 500 °C.
- γ-Ga2O3 is prepared by rapidly heating the hydroxide gel at 400–500 °C. A more crystalline form of this polymorph can be prepared directly from gallium metal by a solvothermal synthesis.
- δ-Ga2O3 is obtained by heating Ga(NO3)3 at 250 °C.
- ε-Ga2O3 is prepared by heating δ-Ga2O3 at 550 °C. Thin films of ε-Ga2O3 are deposited by means of Metalorganic vapour phase epitaxy using Trimethylgallium and water on sapphire substrates at temperatures between 550 and 650 °C
Gallium(III) oxide has been studied in the use of lasers, phosphors, and luminescent materials. It has also been used as an insulating barrier in tight junctions
We can help to supply:
- Sodium Tungstate
- Calcium Tungstate
- Tungsten Trioxide
Tungsten Trioxide is typically available in most volumes. Ultra-high purity, high purity, submicron and nanopowder forms may be considered.
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If you would like to speak to someone directly about our services relating to Gallium Oxide, please call us on +44 (0)20 7183 0651 or visit our contact page, or contact us via LinkedIn and we will be happy to answer any of your questions.