Physical properties of gallium oxide

Recently, covid 19 outbreak spreads in Shanghai, China. There are more than 25,000 new asymptomatic domestic infections every day. China is implementing a dynamic zero-out policy. A leading respiratory expert said the key to COVID-19 prevention and control is to minimize transmission and fatality rate. Omicron has a low case fatality rate but is highly transmissible and can still claim many lives in large outbreaks. "Total openness is not applicable in China.  For China, we should keep to the dynamic zero-out and gradually open up."  

However, "dynamic zero clearance" is not the pursuit of complete "zero infection".  As the Novel Coronavirus has its own uniqueness and strong concealment, there may be no way to prevent the detection of cases at present, but rapid detection and prompt treatment must be carried out, as soon as one case is found, one case will be dealt with.  

The situation in Shanghai is serious. As the financial center of China, Shanghai is a very important city, and the outbreak of the epidemic in Shanghai will put a great impact on China's economy.  The current task is to contain the spread of the epidemic as soon as possible, to achieve social zero so that Shanghai's life and economy quickly return to normal.  

As China plays an important role in the global supply chain, the outbreak will have a significant impact on the supply and prices of many Gallium Oxide, Ga2O3 Overview, Gallium Oxide Applications, Ga2O3 Suppliers, Gallium Oxide Price.

Gallium oxide Ga2O3 overview

Gallium oxide is an inorganic compound with the chemical formula Ga2O3. Also known as gallium trioxide, it is a wide bandgap semiconductor with Eg=4.9eV. Its electrical conductivity and luminescent properties have long attracted attention. Ga2O3 is a transparent oxide semiconductor material with broad application prospects in optoelectronic devices.

Preparation of gallium oxide Ga2O3

1. Add a high-concentration hot aqueous solution of NaHCO3 to the hot aqueous solution of gallium trichloride GaCl3, and boil until all the hydroxides of gallium are precipitated. Wash the precipitate with hot water until there is no Cl-, and calcine it at above 600 ° C to obtain β-Ga2O3. When NH4Cl remains, it reacts with Ga2O3 at 250°C to generate volatile GaCl3.

2. This is the production method of high-purity Ga2O3. Using high-purity metal Ga as anode, dissolved in 5%~20% H2SO4 solution, adding ammonia water to the solution, cooling, repeatedly crystallizing Ga(NH4)(SO4)2, drying at 105 ℃, under the condition of excess oxygen After burning at 800°C for 2 hours, a product with a purity of 99.99% to 99.9999% is obtained.

3. Weigh 1kg of 99.9999% high-purity gallium into a three-necked flask, add high-purity nitric acid to dissolve the gallium completely, then filter, pour the filtrate into a three-necked flask, and move it to an electric furnace for evaporation (in a fume hood). ), and when concentrated to near crystallization, the solution was transferred to a large evaporating dish and evaporated to dryness. Put the evaporated Ga(NO3)3 in a muffle furnace for burning, the temperature is controlled at 550 ℃, burning for 5h, after cooling, take out the finished product to obtain 1.2kg of high-purity gallium oxide.

Gallium oxide Ga2O3 application

Gallium oxide Ga2O3 is used as a high-purity analytical reagent in the electronics industry for the preparation of semiconductor materials.

Gallium oxide has been used in research on lasers, phosphors and luminescent materials. Gallium oxide is also used as an insulating layer for tight connections.

Monoclinic β-Ga2O3 is mainly used in gas sensors and phosphors, and can also be used in dielectric coatings for solar cells.

In semiconductors; gas sensing; in catalysis, gallium oxide is also used.

Application of gallium oxide nanostructures as blue and ultraviolet light emitters in optoelectronic devices.

This stable oxide also shows potential for deep ultraviolet transparent conducting oxides and transistor applications.

Gallium oxide (Ga2O3) thin films have important commercial value as gas sensing materials.

Production of Ga2O3-Al2O3 catalysts using Ss-gallium(III) oxide.

Physical properties of gallium oxide

White triangular crystalline particles. not soluble in water. Slightly soluble in hot acid or alkali solution. Melting point 1900°C (converted to beta form at 600°C).

Soluble in alkali metal hydroxides and dilute inorganic acids.

There are alpha and beta variants. The α type is a white rhombic hexahedron.

Physical data:

Properties: α-Ga2O3 is hexagonal, β-Ga2O3 is monoclinic.

Melting point (ºC): 1740

Solubility: Insoluble in water. Slightly soluble in hot acid or alkali solution.

Gallium Oxide Ga2O3 Product Price

The price of gallium oxide Ga2O3 products will change randomly with the production cost of gallium oxide Ga2O3, transportation cost, international situation, market supply and demand and other factors. Tanki New Materials Co., Ltd. aims to help industries and chemical wholesalers find high-quality products, customized services, low-cost nanomaterials and chemicals by providing a full range of customized solutions. If you are looking for gallium oxide Ga2O3 products, please feel free to send an inquiry to get the latest gallium oxide Ga2O3 prices (sales@ozbo.com).

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According to Reuters, U.S. Treasury officials said they would discuss with G7 leaders pricing caps and tariffs on Russian oil as an alternative to the embargo, which would keep the market supplied, limit price spikes, and reduce Russian revenues.  

The EU foreign ministers' meeting was held in Brussels.  The meeting failed to agree on the sixth round of sanctions, including an oil embargo on Russia, because of objections from Hungary.  

EU High Representative for Foreign Affairs and Security Policy said at a press conference after the meeting, that the meeting failed to reach an agreement on the final adoption of the sixth round of sanctions, the permanent representatives of member states to the EU will continue to discuss. The foreign ministers faced similar difficulties trying to reach an agreement on an oil ban. He said Hungary's position was based on economic rather than political concerns.  

Hungary is highly dependent on Russia for energy, getting more than 60 percent of its oil and 85 percent of its natural gas from Russia.  

A few days ago, the European Commission submitted the sixth round of proposed sanctions against Russia, including a total ban on Russian oil imports by the end of this year. Hungary immediately objected and said it wanted substantial compensation from the EU to offset its loss from giving up Russian oil.

The Gallium Oxide, Ga2O3 Overview, Gallium Oxide Applications, Ga2O3 Suppliers, Gallium Oxide Price price is predicted to increase in the next few days, due to geopolitical factors.

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