Cerium dioxide
Properties, data and information sources.
Contents
Names and Identifiers
Formula
CeO2
Molar mass
172.114 (g/mol)
CAS registry number
1306-38-3
EC number EINECS
215-150-4
InChI Key
CETPSERCERDGAM-UHFFFAOYSA-N
Systematic name
Dioxocerium
Other names, synonyms
Ceric oxide; Ceria; Ceric dioxide; Cerium(IV) dioxide; Cerium(IV) oxide
INCI name
CERIUM OXIDE
Latin name
Cerium oxydatum
Chemical formulas
Molecular formula and structural formula of Cerium dioxide:
CeO2
Mr = 172.114 g/mol
Dioxocerium
SMILES: O=[Ce]=O
Data and Properties
In its pure state, cerium(IV) oxide is a white to light yellow, slightly hygroscopic solid.
solubility:- Unsoluble in
water.
melting point
2400 °C
boiling point
3500 °C
density
7.215 g cm-3 at 20 °C
magnetic susceptibility χ
+26.0 × 10-6 cm3 mol-1
crystal structure:
Cubic crystal system (fluorite structure) cF12, space group Fm3m, No. 225 with the lattice parameters a = b = c = 541 pm, α = β = γ = 90°.
Spectroscopic data:
SpectraBase (NMR, IR, FTIR, Raman, UV-Vis, MS ... spectra)JjihjkrTfuP
Percentage and isotopic composition:
Mass-related elemental composition and isotope proportions of the compound Cerium dioxide - CeO2 - calculated based on molecular mass.
Symbol
Element ENumber x
of atoms ExData of the element
and isotopes *Percentages
of isotopesPercentage of
Ex in formula massCe
Cerium1ΣAr = 140.116 u
142Ce: 141.90925 u [11,114 %]
140Ce: 139.90544 u [88,449 %]
138Ce: 137.90599 u [0,251 %]
136Ce: 135.90713 u [0,186 %]
142Ce: 9.04778 %
140Ce: 72.0053 %
138Ce: 0.20434 %
136Ce: 0.15142 %
81.4088 %O
Oxygen2 Ar = 15.999 u
ΣAr = 31.998 u
16O: 15.99491 u [99,757 %]
17O: 16.99913 u [0,03835 %]
18O: 17.99916 u [0,205 %]
16O: 18.54599 %
17O: 0.00713 %
18O: 0.03811 %
18.5912 % *) The third column lists the atomic masses or isotope masses of the elements involved and - in square brackets - the natural isotope composition.
More calculated data
The molar mass is M = 172.114 grams per mole.
The amount of substance in one kilogram of the substance is n = 5.81 mol.
The amount of substance in one gram of the substance is n = 0.006 mol.
Monoisotopic mass: 171.895269238 Da - related to 140Ce16O2.
Use in Cosmetics
INCI Name: CERIUM OXIDE
Ingredient in cosmetic products functioning as a opacifying agent.
Source: CosIng (Cosmetic Ingredient Database) number: 55330.
External Sources
PubChem:ID 73963ChemSpider:ID 66592UNII of the FDA (USA):Unique Ingredient Identifier 619G5K328YEPA CompTox Chemicals Dashboard:DTXSID4040214Other CAS RN:1028607-87-5; 1033016-71-5; 1255709-68-2; 1310572-48-5; 1645286-14-1; 1715945-36-0; 1800209-57-7; 1909261-36-4; 1962164-22-2; 2257424-51-2; 385781-69-1; 956013-06-2 (also used, outdated or deleted registration numbers)
Manufacturers and Sources of Supply
The table below lists producers and suppliers of Cerium dioxide as a commercial chemical for laboratories, research, industry and production with the corresponding contact details.
Last update: 2025-10-30
Perma link: https://www.chemlin.org/chemical-compound/Cerium dioxide.php
© 1996 - 2025 ChemLin
