Overview
Indium(III) Oxide (In₂O₃) is a key inorganic compound widely utilized in advanced technological applications. It is known for its unique combination of electrical conductivity and optical transparency, making it indispensable in modern electronics and optoelectronics. Primarily produced through the oxidation of indium metal, this compound is a critical raw material for manufacturing transparent conductive films used in displays and solar panels. Its high thermal stability and chemical resistance further enhance its industrial relevance.
Physical and Chemical Properties
Indium(III) Oxide is a yellowish-white powder with a high melting point of 1910°C and a density of 7.18 g/cm³. It is insoluble in water but dissolves in acids, forming indium salts. Its most notable property is its ability to conduct electricity while remaining transparent in thin-film form. This makes it ideal for applications requiring both conductivity and optical clarity. The compound also exhibits semiconductor behavior, which is tunable by doping with other elements.
Main Applications
Indium(III) Oxide is predominantly used in the production of transparent conductive coatings, such as indium tin oxide (ITO), which is essential for LCD screens, touch panels, and OLED displays. Additionally, it finds applications in solar cells, where it enhances light absorption and electron transport. The compound is also employed in gas sensors due to its sensitivity to various gases, making it valuable in environmental monitoring and industrial safety systems.
Safety and Storage
Handling Indium(III) Oxide requires caution to avoid inhalation or skin contact, as it may cause irritation. Proper personal protective equipment (PPE), such as gloves and masks, should be used. Storage conditions should be dry and cool to prevent moisture absorption, which can affect the material's properties. Containers must be sealed tightly and kept away from incompatible substances like strong acids or reducing agents.
B2B Procurement Guide
When procuring Indium(III) Oxide, buyers should prioritize suppliers who provide detailed purity certifications (e.g., 99.9% or higher) and material safety data sheets (MSDS). Bulk purchases often attract discounts, but quality consistency must be verified. Given the fluctuating price of indium, it's advisable to monitor market trends and secure long-term contracts with reliable suppliers to mitigate cost volatility. Sampling and third-party testing are recommended for new suppliers.
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