Indium Oxide In2O3 Powder CAS 1312-43-2

Indium oxide is an amphoteric oxide of indium, and the molecular formula is In2O3. The pure product is a white or light yellow amorphous powder heated to reddish-brown. Indium oxide is a new n-type transparent semiconductor functional material having width-disabled bandwidth, smaller resistivity, and higher catalytic activity. It has been widely used in optical fields, gas sensors, and catalysts. In addition to the above functions, there is an indium oxide particle size, surface effect, quantum dimensional effect, small dimensional effect, and macroscopic quantum tunnel effect.

Indium oxide is presented in hydrogen or another reducing agent, heated to 400 to 500 ° C, reduced metal indium or low-cost oxide. The low-level oxide is separated at high temperatures. Further, it can react with metal indium solubilized in acid at a high temperature, but the more difficult it is, the moisture absorption also disappears. When hydrogen is reduced by heating through hydrogen, metal indium is produced.

Indium oxide is insoluble in water but can be dissolved in acid, while crystalline oxides are not soluble in water. The crystals are divided into two phases: cubic (diamond type) and diamond (corundum). The bandgap between the two phases is 3eV. The parameter of the cubic phase is listed in the information box. A rhombic phase is produced at high temperatures using a non-balanced growth method. Its spatial group R3C No. 167, Piersson symbol HR30, A = 0.5487 nm, b = 0.5487 nm, C = 0.57818 nm, z = 6, the calculation density is 7.31 g / cm3.

Indium mixed indium film is a magnetic semiconductor with a single-phase crystal structure and a high carrier concentration semiconductor behavior having high-temperature ferromagnetic properties. As the material of the rotating syringe, it can be in the spinning electronics.

Indium oxide polycrystalline films doped with Zn have high conductivity (conductivity to 105 S / m), even with higher superconductivity at temperatures in helium. The superconducting transition temperature Tc is related to the doping and the film structure, less than 3.3k.

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Performance of Indium Oxide In2O3 Powder：

In hydrogen or other reducing agents, 400 ~ 500 ℃ heating can be reduced to metal indium or low-cost indium oxide.

Decomposes to lower oxides at high temperatures. In addition, it can react with metal indium at high temperatures. Although In2O3 generated by low-temperature burning is easily soluble in acid, the more complete the high-temperature treatment is, the more difficult it is to dissolve, and the hygroscopicity disappears. When indium trioxide is reduced with hydrogen under red heat, metal indium is generated.

Technical Parameter of Indium Oxide In2O3 Powder：

ITEM			SPECIFICATIONS			TEST RESULTS
Appearance			Light Yellowish Powder			Light Yellowish Powder
In2O3(%,Min)			99.99			99.995
Impurities(%,Max)
Cu						0.8
Pb						2.0
Zn						0.5
Cd						1.0
Fe						3.0
Tl						1.0
Sn						3.0
As						0.3
Al						0.5
Mg						0.5
Ti						1.0
Sb						0.1
Co						0.1
K						0.3
Other Index
Particle Size(D50)						3-5μm

How is Indium Oxide In2O3 Powder produced?
Acid leaching method:
Acid leaching is a common method for preparing indium oxide. The method is to react indium-containing raw material with dilute acid so that indium ions enter the solution. Then, indium oxide is obtained through impurity removal, evaporation, etc. The acid leaching method has the advantages of easy access to raw materials, simple processes, and low cost. Still, the product purity is low and needs to be refined several times.
Alkaline leaching method:
Alkali leaching is another method for preparing indium oxide. The method is to react indium-containing raw material with a strong base so that indium ions enter the solution. Then, indium oxide is obtained through impurity removal and precipitation. The alkaline leaching method has the advantages of high product purity and a simple process. Still, it needs to use more alkali, and there may be residual alkali, affecting the product's quality.
Coprecipitation method:
The coprecipitation method is to add an appropriate amount of precipitating agent in an indium-containing solution to precipitate indium with other metal ions and then filter, wash, and dry the sediment to obtain indium oxide. The coprecipitation method has the advantages of high product purity and a simple process, but it needs to be washed and dried several times.
Thermal decomposition method:
The thermal decomposition method is to heat and decompose indium-containing salts to obtain indium oxide. The thermal decomposition method also offers the benefits of superior product purity, and it is a straightforward procedure. Still, it must use high-purity raw materials, and the production cost is high.
Electrochemical method:
The electrochemical method uses an electrochemical reaction to reduce indium ions in an indium-containing solution to indium metal. Then, it uses gas phase oxidation or liquid phase oxidation to oxidize indium metal to indium oxide. The electrochemical method has the advantages of high product purity and simple process, but it needs to use special electrolytic equipment and power supply, and the production cost is high.
 

Applications of Indium Oxide In2O3 Powder:

In recent years, indium oxide has been used in high-tech and military fields, such as photovoltaic industries, particularly processed into indium tin oxide (ITO) targets, manufacturing transparent electrodes and transparent heat reflector materials.

Used to produce a planar liquid crystal display and inverter.

Indium oxide is used as materials such as spectral purity reagents and electronic components.

Indium oxide is used in a protective coating of a metal mirror surface, and a photovoltaic display semiconductor film is also used to produce indium salts and glass.

Indium oxide is a raw material commonly used in the resistance touch screen, mainly used in fluorescent screens, glass, ceramics, chemical reagents, etc.

For non-ferrous metal glass, ceramics, alkaline manganese batteries, indium oxide series Liu, chemical reagents, and other traditional fields of Colorado.

Oxides are used in certain types of batteries, thin-film infrared reflectors (high mirrors), some optical coatings, and some antistatic coatings for visible light transparency.

Indium oxide and tin oxide form indium tin oxide (blend indium oxide or ITO) and a material transparent conductive coating.

In the semiconductor, indium oxide can be used as an N-type semiconductor of the resistance element in the integrated circuit.

In histological learning, indium oxide is part of certain dyeing formulations.

Storage Condition of Indium Oxide In2O3 Powder：
Indium Oxide In2O3 Powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Indium Oxide In2O3 Powder：
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
Indium Oxide In2O3 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Indium Oxide In2O3 Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.


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