1312-43-2

Basic information

• Product Name: Indium oxide
• Synonyms: In2-O3;india;Indium oxide (In2O3);Indium(II) oxide;indiumoxide(in2o3);indiumtrioxide;diindium trioxide;INDIUM SESQUIOXIDE
• CAS NO: 1312-43-2
• Molecular Formula: In2O3
• Molecular Weight: 277.63
• EINECS: 215-193-9
• Product Categories: Inorganics;49: In;IndiumMaterials Science;Nanomaterials;Nanoparticles: Oxides, Nitrides, and Other CeramicsNanomaterials;Nanopowders and Nanoparticle Dispersions;Catalysis and Inorganic Chemistry;Chemical Synthesis;Indium;IndiumMetal and Ceramic Science;Oxides;metal oxide
• Mol File: 1312-43-2.mol
• Article Data: 0

Chemical Properties

• Melting Point: 2000°C
• Boiling Point: 850oC
• Flash Point: 13°(55°F)
• Appearance: Yellow/nanopowder
• Density: 7.18 g/mL at 25 °C(lit.)
• Vapor Pressure: <0.01 mm Hg ( 25 °C)
• Storage Temp.: Storage temperature: no restrictions.
• Solubility: Soluble in hexane and toluene. Insoluble in alcohols
• Water Solubility: Insoluble in water.
• Stability: Stable. Not flammable. Incompatible with acids.
• Merck: 14,4952
• CAS DataBase Reference: Indium oxide(CAS DataBase Reference)
• NIST Chemistry Reference: Indium oxide(1312-43-2)
• EPA Substance Registry System: Indium oxide(1312-43-2)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• RIDADR: UN1993
• WGK Germany: 3
• RTECS: NL1770000
• TSCA: Yes
• HazardClass: 3
• PackingGroup: II
• Hazardous Substances Data: 1312-43-2(Hazardous Substances Data)

Usage

General Description

Different sources of media describe the General Description of 1312-43-2 differently. You can refer to the following data:
1. Indium oxide (also known as indium sesquioxide, or In2O3) is a yellow colored powder. It is a stable ceramic-like material that is insoluble in water. Indium oxide is an n-type semiconductor and thus can be used as a resistive element in integrated circuits. It also is used to form heterojunctions with materials like p-InP, n-GaAs, n-Si, and other semiconductors. Other applications include glass (as a color additive), alkaline batteries (to suppress gas formation), and high current electrical switches and contacts (as an anti-arcing additive).
2. In2O3/Au/Ag coated PET film

Chemical Properties

light green powder

Physical properties

Light-yellow powder; cubic crystal; occurs in both amorphous and crys-talline forms; pale-yellow amorphous form converts to crystalline form onheating at higher temperatures; isomorphous with hematite, Fe2O3; density7.18 g/cm3; melts around 2,000°C; insoluble in water; amorphous form dis-solves readily in mineral acids; crystalline form has low solubility in acids.

Uses

Different sources of media describe the Uses of 1312-43-2 differently. You can refer to the following data:
1. Indium(III) oxide is widely utilized as a n-type semiconductor, which is used in integrated circuits as a resistive element. It finds applications in batteries and as a part of some stain formulations. It is used as thin film coatings in optical, antistatic and infrared reflectors. It is doped with tin oxide and used as transparent conductive coatings.
2. In glass manufacture.
3. Indium trioxide is used in specialty glass production.

Preparation

Indium trioxide may be obtained by heating indium in air or oxygen: 4In + 3O2 → 2In2O3 or by calcination of indium hydroxide, nitrate, or carbonate at elevated tem-peratures: 2In(OH)3 → In2O3 + 3H2O In2(CO3)3 →In2O3 + 3CO2

Hazard

See indium.

Purification Methods

Wash it with H2O and dry it below 850o. It volatilises at 850o and dissolves in hot mineral acids to form salts. Store it away from light because it darkens due to the formation of free In.

InChI:InChI=1/2In.3O/rIn2O3/c3-1-5-2-4