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HomeProduct name listIndium(III) oxide

Indium(III) oxide

Synonym(s):Diindium trioxide;Indium sesquioxide;Indium(III) oxide

  • CAS NO.:1312-43-2
  • Empirical Formula: In2O3
  • Molecular Weight: 277.63
  • MDL number: MFCD00011060
  • EINECS: 215-193-9
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-08-28 13:53:27
Indium(III) oxide Structural

What is Indium(III) oxide?

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.

The Uses of Indium(III) oxide

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.

The Uses of Indium(III) oxide

In glass manufacture.

The Uses of Indium(III) oxide

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

General Description

In2O3/Au/Ag coated PET film

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.

Properties of Indium(III) oxide

Melting point: 2000°C
Density  7.18 g/mL at 25 °C(lit.)
vapor pressure  <0.01 mm Hg ( 25 °C)
Flash point: 13°(55°F)
storage temp.  no restrictions.
solubility  Soluble in hexane and toluene. Insoluble in alcohols
form  nanopowder
color  Yellow
Specific Gravity 7.179
Water Solubility  Insoluble in water.
Merck  14,4952
Exposure limits ACGIH: TWA 0.1 mg/m3
NIOSH: TWA 0.1 mg/m3
Stability: Stable. Not flammable. Incompatible with acids.
CAS DataBase Reference 1312-43-2(CAS DataBase Reference)
NIST Chemistry Reference indium(III) oxide(1312-43-2)
EPA Substance Registry System Indium oxide (In2O3) (1312-43-2)

Safety information for Indium(III) oxide

Signal word Warning
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Exclamation Mark
Irritant
GHS07
ghs
Health Hazard
GHS08
GHS Hazard Statements H225:Flammable liquids
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H332:Acute toxicity,inhalation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
H336:Specific target organ toxicity,single exposure; Narcotic effects
H361:Reproductive toxicity
Precautionary Statement Codes P201:Obtain special instructions before use.
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for Indium(III) oxide

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