What is Zirconium Dioxide?

Zirconium dioxide, also called zirconia or zirconium(IV) oxide, has CAS 1314-23-4, molecular formula ZrO₂ and molecular weight 123.22. It is normally a white, high-melting crystalline oxide with high refractive index and low thermal expansion.

What is it mainly used for?

It is used in advanced and piezoelectric ceramics, refractories, ceramic opacifiers, thermal barrier coatings, and as a source material for stabilized zirconia and cubic zirconia. It is also used in abrasives and specialty glass.

What specifications should be confirmed before ordering?

Confirm ZrO₂ content, particle size or surface area, phase type, and impurity levels such as silica, titania and hafnia. If the application requires stabilized or yttria-doped zirconia, confirm whether this material is undoped or already modified.

How should Zirconium Dioxide be stored and handled?

Store in tightly closed containers in a dry area. Avoid breathing dust and use suitable dust controls and PPE. Follow the safety information for spill, disposal and first-aid procedures.

Zirconium Dioxide CAS 1314-23-4

Zirconium Dioxide (Zirconia), CAS 1314-23-4, is a white high-melting ceramic oxide used in advanced ceramics, refractories, opacifiers, abrasives and thermal barrier coatings. Confirm the required ZrO₂ content, particle size and phase type for the intended application.

CAS: 1314-23-4
Synonyms: Zirconia, Zirconium(IV) oxide, Zirconic anhydride, Baddeleyite
Einecs: 215-227-2
Molecular Formula: ZrO₂
Grade: Industrial grade 99%
Package: 200kg iron drum or 50kg plastic drum packing

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Product Description

Zirconium Dioxide, CAS 1314-23-4, is zirconium(IV) oxide, commonly called zirconia; the EC/EINECS number is 215-227-2.

Synonyms: Zirconia; Zirconium(IV) oxide; Zirconic anhydride; Baddeleyite.

CAS: 1314-23-4.

Molecular formula: ZrO₂.

Molecular weight: 123.22.

EC number: 215-227-2.

It is normally supplied as a white, odorless crystalline powder that is practically insoluble in water.

Typical properties include melting point of about 2700 °C, boiling point of about 4300 °C and density of about 5.85 g/cm³.

It is used in advanced and piezoelectric ceramics, refractories, ceramic opacifiers, thermal barrier coatings, abrasives and specialty glass.

It also serves as a source material for stabilized zirconia and cubic zirconia.

Pure zirconia undergoes monoclinic-to-tetragonal phase changes during thermal cycling, while stabilized grades contain yttria, calcia or magnesia to retain a useful phase at room temperature.

Confirm ZrO₂ content, particle size or surface area, phase type, and impurity levels such as silica, titania and hafnia.

It is irritating to the eyes and respiratory system; avoid breathing dust, and use suitable dust controls and PPE.

Store in tightly closed containers in a dry area.

Confirm the current product-specific specification.

Confirm packaging with the requested quantity and destination requirements.

Document requirements should be confirmed from the current specification, SDS, COA, or other product-specific files.

Regulated-use suitability must be confirmed separately with current product-specific documentation.

The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.

For an RFQ, state the intended use, required specification, quantity, packaging, destination, and document needs.

FAQ - Technical & Supply Chain

Q:
What is Zirconium Dioxide?

A: Zirconium dioxide, also called zirconia or zirconium(IV) oxide, has CAS 1314-23-4, molecular formula ZrO₂ and molecular weight 123.22. It is normally a white, high-melting crystalline oxide with high refractive index and low thermal expansion.
Q:
What is it mainly used for?

A: It is used in advanced and piezoelectric ceramics, refractories, ceramic opacifiers, thermal barrier coatings, and as a source material for stabilized zirconia and cubic zirconia. It is also used in abrasives and specialty glass.
Q:
What specifications should be confirmed before ordering?

A: Confirm ZrO₂ content, particle size or surface area, phase type, and impurity levels such as silica, titania and hafnia. If the application requires stabilized or yttria-doped zirconia, confirm whether this material is undoped or already modified.
Q:
How should Zirconium Dioxide be stored and handled?

A: Store in tightly closed containers in a dry area. Avoid breathing dust and use suitable dust controls and PPE. Follow the safety information for spill, disposal and first-aid procedures.
Q:
What is the difference between pure and stabilized zirconia?

A: Pure zirconia undergoes monoclinic-to-tetragonal phase changes during thermal cycling, while stabilized grades contain yttria, calcia or magnesia to retain a useful phase at room temperature. Stabilized zirconia is preferred for structural ceramics and thermal barrier coatings requiring toughness and dimensional stability.

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