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Rare earth compounds

Cerium

Also known as CE, cerio, Cerium atom

CAS 7440-45-1Formula CeMolar mass 140.12 g/molEC 231-154-9
GHS signal word: Danger. Pictograms: Flammable 68 suppliers listed
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Element with atomic number and standard atomic weight

Key facts

What buyers check first

All properties
Physical form
Solid
Melting point
799 °C
Boiling point
3,433 °C
Density
6.9 @25 °C
HS code
280530
Category
Rare earth compounds
UN number
UN 1333
Illustrative photo, 25 kg white woven sacks of powder on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Cerium?

Plain description, key identifiers and synonyms

Cerium is a lanthanoid atom and a f-block element atom.

Cerium is a chemical element with symbol Ce and atomic number 58.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
cerium
CAS number
7440-45-1 CAS number cross-checkedOther or deprecated CAS: 109882-76-0, 13550-45-3, 13864-02-3
EC numbers
231-154-9, 629-690-7
Molecular formula
Ce
UNII
30K4522N6T
MDL number
MFCD00010924
InChIKey
GWXLDORMOJMVQZ-UHFFFAOYSA-N
InChI
InChI=1S/Ce
SMILES (canonical and isomeric)
[Ce]

Synonyms

  • CE
  • cerio
  • Cerium atom
  • Nitric acid, cerium(3+) salt, hydrate
  • 58Ce
  • Cerium metal
  • Cerium Standard: Ce @ 1000 microg/mL in 5% HNO3
  • Cerium Standard: Ce @ 10000 microg/mL in 5% HNO3
  • Cerium element
  • Cerium ingot
  • Element Cerium
  • Element:Cerium
  • Atomic Cerium
  • Element-Ce
  • Element:Ce
  • Cerium, chips
  • Cerium (atomic)
  • Cerium (element)
  • Ce (element)
  • Zer
  • Ce Standard Solution
  • MOME
  • Cerium, elemental
  • Cerium chips, 3N (REO)
  • Cerium Nanoparticle Dispersion
Show all 36 synonyms
  • Cerium, 90%
  • Cerium, turnings or gritty powder
  • 7440-45-1(oil)
  • Cerium rod, 12.7mm (0.5in) dia
  • Cerium rod, 6.35mm (0.25in) dia
  • Cerium foil, 1.0mm (0.04in) thick
  • Cerium foil, 0.1mm (0.004in) thick
  • Cerium foil, 0.25mm (0.01in) thick
  • Cerium foil, 3N, packed in mineral oil
  • Cerium foil, 0.62mm (0.024in) thick
  • Cerium - Ce @ 1000 microg/mL in 5% HNO3

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
Solidexp.
Melting point
799 °Cexp.
Boiling point
3,433 °Cexp.
Density
6.9 @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
140.12 g/molcalc.
Exact mass
139.9054 Dacalc.
LogP (octanol/water)
0calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
1calc.
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

GHS signal word
Danger
GHS02: Flammable
Flammable

Hazard statements

  • H228Flammable solid.
Precautionary statements (5)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
UN number
UN 1333
Transport hazard class
4.1
Packing group
II

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

Full safety data and first aid

Cerium suppliers

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

All 68 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

68 suppliers in 17 countries

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Cerium 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: Intermediate, Alloys.

Consumer uses: Intermediate, Alloys.

Regulatory status

Inventories, regulations and trade controls that list this substance

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 Cerium is traded under.

HS 2805.30Indicative HS code

Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed

World exports in 2024
$385M
+7.4% vs 2023, imports $503M
2019 to 2024
Top exporters
  1. Vietnam * partner reported50.6%
  2. China24.9%
  3. Thailand17.1%
Top importers
  1. Japan49.0%
  2. Malaysia25.5%
  3. Vietnam * partner reported8.2%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Cerium?

Cerium is a lanthanoid atom and a f-block element atom.

What is the CAS number of Cerium?

The CAS registry number of Cerium is 7440-45-1. Other or deprecated CAS numbers: 109882-76-0, 13550-45-3, 13864-02-3.

What is the molecular formula and weight of Cerium?

The molecular formula of Cerium is Ce and its molar mass is 140.12 g/mol.

What is Cerium used for?

Industrial uses: Intermediate, Alloys. Consumer uses: Intermediate, Alloys.

Is Cerium hazardous?

Cerium carries the GHS signal word "Danger". Main hazards: flammable solid. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Cerium?

Cerium is usually classified under HS code 280530 (Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Cerium?

CompoundList lists 68 suppliers of Cerium in United States, China, Germany, Spain and 13 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Cerium in India?

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

What is the price of Cerium?

Suppliers quote Cerium 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 Cerium

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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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