PRODUCT DATA SHEETIndiOx (Indium Oxide) Type A and Type B®

In2O3Introduction
IndiOx ® (Indium Oxide or Indium Sesquioxide) is ayellow-colored powder with a molecular weight of 277.64.
It is a stable ceramic-like material, insoluble in water, andvolatizes at 850°C. IndiOx® is an n-type semiconductor
and as such, is used as a resistive element in integrated
circuits and to form heterojunctions with p-InP, n-GaAS,
and other semiconductors. Other uses include glasscoloring, gassing suppression in alkaline batteries, and as
an anti-arcing additive in high current electrical switches
and contactors.
When doped with tin dioxide (SnO2), thin films of indium-tinoxide (ITO) function as a transparent electrical conductor
and can reflect a portion of the infrared spectrum. Thinfilms of ITO are used in LCD, OLED, and plasma flat panel
displays, touch screens, electroluminescent lighting,
low-E glass, and aircraft windshield and freezer casedemisting. The major use of IndiOx® is in the manufactureof ITO sput tering targets for thin-film coating bycompacting a mixture of IndiOx® and tin dioxide powders.
In the manufacture of sputtering targets, 90 weightpercent IndiOx® is blended with 10 weight percent tin
dioxide and compacted to a high density.
IndiOx® is available in two powder morphologies:• Type A - Crystalline
The primary particles range from 0.4–1.0µm in diameter;
agglomerates up to approximately 30µm.
• Type B - Fine
The primary particles range from 0.1–1.0µm in diameter;
agglomerates up to approximately 6µm.

Form No. 97557 (A4) R15

PRODUCT DATA SHEETIndiOx (Indium Oxide) Type A and Type B®

In2O3Properties: Type A - Crystalline
Chemical FormulaIn 2 O 3

Molecular Weight277.64

General Description

Bright yellow powderUses• Manufacturing of ITO sputteringtargets and evaporation charges

Product Packaging• Our powder is securely packaged to avoid contamination
during shipment, and we use a variety of container sizes
to ship.
• Containers can hold from 0.1–50kg of product percontainer.

• Coloring ceramics and glasses• Containers available include wide-mouth plastic jars andpails, as well as plastic and steel drums.

Purity Grades Available

4N (99.99%), 5N (99.999%)• Custom packaging is available on request.

Solubility

Insoluble in water and alcohol

Theoretical Indium
Percentage

82.7

Minimum Indium Percentage

81.5

Nominal Indium Percentage

82.4 ± 0.9

d90 Particle Size Distribution

14.0–38.0

d50 Particle Size Distribution

6.0–23.0

d10 Particle Size Distribution

1.7–10.3

BET m2 /g (typical)

0.424

Properties: Type B - Fine
Chemical FormulaIn 2 O 3

Molecular Weight277.64General Description

Bright yellow powder

Uses• Manufacturing of ITO sputteringtargets and evaporation charges• Coloring ceramics and glasses

Purity Grades Available

4N (99.99%), 5N (99.999%)

Solubility

Insoluble in water and alcohol

Theoretical Indium
Percentage

82.7

Minimum Indium Percentage

81.1

Nominal Indium Percentage

82.3 ± 1.2

d90 Particle Size Distribution

2.1–4.3

d50 Particle Size Distribution

1.1–2.6

d10 Particle Size Distribution

0.7–1.1

BET m2 /g (typical)

10.6

Storage and Shelf LifeIndiOx ® should be stored at room temperature and thecontainer kept tightly sealed. IndiOx ® has a shelf life of
12 months.

Safety Data Sheets
The SDS for this product can be found online at
http://www.indium.com/sds
Indium Corporation is the leading global supplier of bulk
indium, high-purity indium, indium fabrications, alloys, andcompounds. IndiOx® is produced in high volume utilizing
state-of-the-art SPC-controlled chemical processing
equipment. This, coupled with rigorous quality standards
and advanced analytical instrumentation such as ICPMS,
ensures consistent product quality.

Technical Support
Indium Corporation’s internationally experienced engineering
team provides in-depth technical assistance to ourcustomers.

This product data sheet is provided for general information only. It is not intended, and shall not be construed, to warrant or guarantee the performanceof the products described which are sold subject exclusively to written warranties and limitations thereon included in product packaging and invoices.
All Indium Corporation’s products and solutions are designed to be commercially available unless specifically stated otherwise.
All of Indium Corporation’s solder paste and preform manufacturing facilities are IATF 16949:2016 certified. Indium Corporation is an ISO 9001:2015 registered company.

Contact our engineers: askus@indium.com
Learn more: www.indium.com
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