Indium oxide, with the molecular formula In2O3, is an indium oxide compound. It exists as a white or pale yellow amorphous powder in its pure form, which turns reddish-brown upon heating. Its vapor pressure (mmHg, 25°C) is less than 0.01. It is insoluble in water but soluble in hot inorganic acids.
Indium oxide is a new type of n-type transparent semiconductor functional material. It features a wide bandgap, low electrical resistivity, and high catalytic activity. It has found extensive applications in optoelectronics, gas sensors, and catalysts. When indium oxide particles reach the nanoscale, they exhibit surface effects, quantum size effects, small size effects, and macroscopic quantum tunneling effects, in addition to the aforementioned functionalities.
청정 | 99.99% 99.999% |
Particle Size | 1-5um |
MF | In2O3 |
모습 | Light Yellow Powder |
Cas No | 1312-43-2 |
EINECS | 215-193-9 |
분자 무게 | 277.64 |
녹는 점 | 2000 ℃ |
비점 | 800℃ |
밀도 | 7.18g/ml at 25℃ |
Production Methods of Indium Oxide
- High-purity metallic indium can be combusted in air or indium carbonate can be calcined to produce In2O, InO, and In2O3. Fine control of reduction conditions can yield high-purity In2O3. Alternatively, In2O3 ceramic powder with an average particle size of 20nm can be produced using spray combustion techniques.
- When burning indium hydroxide to prepare In2O3, if the temperature is too high, there is a possibility of thermal decomposition of In2O3. If the temperature is too low, it is difficult to completely dehydrate, and the resulting oxide tends to be hygroscopic. Therefore, heating temperature and time are crucial factors. Additionally, because In2O3 is easily reduced, it must be maintained in an oxidizing atmosphere frequently.
- Indium hydroxide can be calcined in air at 850°C until a constant weight is achieved to form In2O3, followed by heating at 1000°C for 30 minutes in air. Other compounds such as indium nitrate, indium carbonate, and indium sulfate can also be burned in air to obtain indium oxide (In2O3).
Indium Trioxide's Applications
- Used as materials for spectroscopic-grade reagents and electronic components.
- Applied as protective coatings for metal reflectors, semiconductor thin films for optoelectronic displays, and in the manufacture of indium salts and glass.
- It is also a primary raw material in resistive touchscreens, commonly used in fluorescent screens, glass, ceramics, and chemical reagents.
- Additionally, it finds wide application in traditional fields such as colored glass, ceramics, alkaline manganese batteries as mercury-free anticorrosive agents, and chemical reagents.
- In recent years, it has been extensively used in high-tech sectors like optoelectronics and the military, particularly suitable for processing into indium tin oxide (ITO) targets, manufacturing transparent electrodes, and materials for transparent heat reflectors used in the production of flat panel LCDs and defogging/deicing systems.
Properties and Stability
Under the presence of hydrogen or other reducing agents, heating to 400-500°C can reduce indium oxide to metallic indium or lower valence indium oxides.
At high temperatures, it decomposes into lower oxides. Additionally, it can react with metallic indium at high temperatures. While In2O3 formed at low temperatures is soluble in acids, the more thoroughly it undergoes high-temperature treatment, the less soluble it becomes, and its hygroscopicity disappears. Indium oxide (In2O3), when reduced with hydrogen at red heat, produces metallic indium.
Storage Method
Store in a tightly sealed container in a cool, dry place. Ensure good ventilation or exhaust facilities in the working area.
우리 공장 소개
인듐 소재 재가공 분야의 선도적인 생산업체 중 하나인 Aster는 기술 전문 지식을 R&D에 활용하고 인듐 포일, 인듐 합금 포일, 인듐 와이어 및 인듐 씰을 포함한 다양한 인듐 제품을 생산합니다. 당사의 인듐 제품은 전 세계 50개국 이상으로 수출됩니다. 전 세계 인듐 광산 및 제품의 주요 생산지인 후난성 창사에 전략적으로 위치하고 있습니다. 우리는 전 세계 비즈니스 파트너를 지원하기 위해 고품질 인듐 제품과 서비스를 제공하기 위해 최선을 다하고 있습니다.
더 알아보기연락하세요
전화주세요
일반 정보: +86 18673173361
기술 지원: +86 17267477981
답변: 인듐 포일 제조 분야에서 10년 이상의 경험을 보유한 당사는 엄격한 품질 관리 시스템과 헌신적인 연구 팀의 지원을 받아 탁월한 명성을 자랑합니다.
A: 일반적으로 영업일 기준 2시간 이내에 견적을 제시합니다. 급하게 가격이 필요한 경우 전화나 이메일로 알려주시면 우선적으로 답변해드리겠습니다.
A: 배송은 일반적으로 DHL, UPS, TNT, FedEx와 같은 특급 택배를 통해 영업일 기준 5~7일 이내에 이루어지며, 해상 배송은 일반적으로 목적지 항구에 도착하는 데 영업일 기준 약 25~35일이 소요됩니다.