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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Identification

Chemical structure
Display Name:
Cerium gadolinium oxide
EC Number:
953-470-2
Molecular formula:
Gd2CeO5
IUPAC Name:
Cerium gadolinium oxide

Type of Substance

Composition:
UVCB
Origin:
inorganic

Substance Identifiers

Compositions

Boundary Composition(s) open all close all

State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Cerium dioxide
EC Number:
215-150-4
EC Name:
Cerium dioxide
CAS Number:
1306-38-3
Molecular formula:
CeO2
IUPAC Name:
cerium dioxide
Constituent 2
Chemical structure
Reference substance name:
Digadolinium trioxide
EC Number:
235-060-9
EC Name:
Digadolinium trioxide
CAS Number:
12064-62-9
Molecular formula:
Gd2O3
IUPAC Name:
gadolinium(3+);oxygen(2-)

Characterisation of nanoforms

Type of information reported:
single nanoform
Name of nanoform:
Spheroidal crystalline cerium gadolinium oxide

Shape

Shape description
Shape category:
spheroidal
Shape:
other: See Remarks below
Pure shape:
yes
Typical composition:
ca. 100 %
Range:
ca. 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
ca. 25 nm
Range:
>= 15 - <= 50 nm
Percentile:
D50
Typical value:
ca. 39 nm
Range:
>= 23 - <= 90 nm
Percentile:
D90
Typical value:
ca. 58 nm
Range:
>= 34 - <= 120 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 99 - <= 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
Fluorite
Pure structure:
yes
Typical composition:
ca. 100 %
Crystal system:
cubic

Specific surface area

Typical specific surface area:
ca. 25.2 m²/g
Range of specific surface area:
>= 5 - <= 30 m²/g
Typical volume specific surface area:
> 183 m²/cm³
Range of volume specific surface area:
>= 36 - <= 220 m²/cm³
Skeletal density:
ca. 7.25 g/cm³

Surface functionalisation / treatment

Surface treatment applied:
no

Legal Entity Composition(s) open all close all

State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Cerium dioxide
EC Number:
215-150-4
EC Name:
Cerium dioxide
CAS Number:
1306-38-3
Molecular formula:
CeO2
IUPAC Name:
cerium dioxide
Constituent 2
Chemical structure
Reference substance name:
Digadolinium trioxide
EC Number:
235-060-9
EC Name:
Digadolinium trioxide
CAS Number:
12064-62-9
Molecular formula:
Gd2O3
IUPAC Name:
gadolinium(3+);oxygen(2-)

Characterisation of nanoforms

Type of information reported:
single nanoform
Name of nanoform:
Spheroidal crystalline cerium gadolinium oxide

Shape

Shape description
Shape category:
spheroidal
Shape:
other: See Remarks below
Pure shape:
yes
Typical composition:
ca. 100 %
Range:
ca. 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
ca. 25 nm
Range:
>= 15 - <= 50 nm
Percentile:
D50
Typical value:
ca. 39 nm
Range:
>= 23 - <= 90 nm
Percentile:
D90
Typical value:
ca. 58 nm
Range:
>= 34 - <= 120 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 99 - <= 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
Fluorite
Pure structure:
yes
Typical composition:
ca. 100 %
Crystal system:
cubic

Specific surface area

Typical specific surface area:
ca. 25.2 m²/g
Range of specific surface area:
>= 5 - <= 30 m²/g
Typical volume specific surface area:
> 183 m²/cm³
Range of volume specific surface area:
>= 36 - <= 220 m²/cm³
Skeletal density:
ca. 7.25 g/cm³

Surface functionalisation / treatment

Surface treatment applied:
no

Composition(s) generated upon use

Other types of composition(s)