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Rare earth compounds

Ceria

Also known as Ceric oxide, Ceric dioxide, Cerium(IV)dioxide

CAS 1306-38-3Formula CeO2Molar mass 172.11 g/molEC 215-150-4
80 suppliers listed Drug substance
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Ceria chemical structure, CeO2, CAS 1306-38-3
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Powder
Melting point
2,600 °C
Density
7.65 @25 °C
HS code
284610
Category
Rare earth compounds
Illustrative photo, closed white HDPE bottles and amber jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Ceria?

Plain description, key identifiers and synonyms

Ceric oxide is a metal oxide with formula CeO2. It is used for polishing glass, in coatings for infra-red filters to prevent reflection, and as an oxidant and catalyst in organic synthesis. It is a metal oxide and a cerium molecular entity.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dioxocerium
CAS number
1306-38-3 CAS number cross-checkedOther or deprecated CAS: 385781-69-1
EC number
215-150-4
Molecular formula
CeO2
UNII
619G5K328Y
MDL number
MFCD00010927, MFCD00010933
INCI name
CERIUM OXIDE
InChIKey
CETPSERCERDGAM-UHFFFAOYSA-N
InChI
InChI=1S/Ce.2O
SMILES (canonical and isomeric)
O=[Ce]=O

Synonyms

  • Ceric oxide
  • Ceric dioxide
  • Cerium(IV)dioxide
  • Needlal
  • Nidoral
  • Opaline
  • Cerium(4+) oxide
  • Needlal U15
  • Needlal W15
  • Molycomp 5310
  • Cerium Oxydatum
  • Cerium dioxide
  • dioxocerium
  • CeO2
  • Cerium oxide (CeO2)
  • cerium(IV) dioxide
  • Needlal W10-01
  • CERAMICS-AEium(IV) oxide
  • Cerium IV Oxide
  • Cerium (IV) oxide
  • Cerium(IV) oxide, REacton
  • Cerium(IV) oxide nanopowder
  • Cerium(IV) oxide, puriss.
  • Cerium(IV) Oxide, Hydrated
  • CERIC OXIDE, CeO2.XH2O
Show all 37 synonyms
  • Cerium oxide powder (~5 micron)
  • Cerium(IV) oxide, >=99.0%
  • Cerium(IV) oxide, powder, 90%
  • Cerium oxide powder (1~3 micron)
  • Cerium oxide nanopowder (10~30 nm)
  • Cerium oxide nanopowder (100~1000 nm)
  • Cerium Oxide Powder, 99.9% (REO) Nano
  • Cerium oxide, 99.99% metals basis, <5 mum
  • Cerium(IV) oxide, 99.995% (REO), powder
  • Cerium oxide nanopowder doped with Gadolinium (<100 nm)
  • Cerium(IV) oxide, 99.99% (REO), 20-40 nm powder
  • Cerium(IV) oxide, powder, 99.995% trace metals basis

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Physical form
Powderexp.
Melting point
2,600 °Cexp.
Density
7.65 @25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
172.11 g/molcalc.
Exact mass
171.8953 Dacalc.
LogP (octanol/water)
-0.24calc.
Topological polar surface area
34.14 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Ceria suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 80 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

80 suppliers in 15 countries

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Ceria price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Industrial uses: Drier, Pigment, Heat stabilizer, Processing aids, specific to petroleum production, Oxidizing agent, Catalyst, Processing aids not otherwise specified, Abrasives.

Consumer uses: Abrasives, Pigment, Catalyst.

Cosmetic ingredient, INCI name CERIUM OXIDE(opacifying)

Functional uses

  • UV stabilizer

Cosmetic functions

  • Opacifying

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • Active ingredient in FDA approved drug labels

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Ceria is traded under.

HS 2846.10Indicative HS code

Cerium compounds

World exports in 2024
$149M
−0.6% vs 2023, imports $155M
2019 to 2024
Top exporters
  1. Japan48.5%
  2. France * partner reported29.2%
  3. China10.6%
Top importers
  1. Japan30.4%
  2. South Korea16.2%
  3. United States12.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Ceria is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Ceria, based on the data on this page

What is Ceria?

Ceric oxide is a metal oxide with formula CeO2. It is used for polishing glass, in coatings for infra-red filters to prevent reflection, and as an oxidant and catalyst in organic synthesis. It is a metal oxide and a cerium molecular entity.

What is the CAS number of Ceria?

The CAS registry number of Ceria is 1306-38-3. Other or deprecated CAS numbers: 385781-69-1.

What is the molecular formula and weight of Ceria?

The molecular formula of Ceria is CeO2 and its molar mass is 172.11 g/mol.

What is Ceria used for?

Industrial uses: Drier, Pigment, Heat stabilizer, Processing aids, specific to petroleum production, Oxidizing agent, Catalyst, Processing aids not otherwise specified, Abrasives. Consumer uses: Abrasives, Pigment, Catalyst.

Is Ceria hazardous?

No GHS hazard classification for Ceria is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Ceria?

Ceria is usually classified under HS code 284610 (Cerium compounds). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Ceria?

CompoundList lists 80 suppliers of Ceria in United States, China, India, Germany and 11 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Ceria in India?

8 suppliers in India list Ceria on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Ceria?

Suppliers quote Ceria on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Ceria

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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