Registration Dossier

Diss Factsheets

Identification

Chemical structure
Display Name:
Reaction mass of cerium dioxide and zirconium dioxide
EC Number:
909-709-8
Molecular formula:
(Ce, Zr)O2
IUPAC Name:
Reaction mass of cerium dioxide and zirconium dioxide

Type of Substance

Composition:
multi-constituent substance
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:
Zirconium dioxide
EC Number:
215-227-2
EC Name:
Zirconium dioxide
CAS Number:
1314-23-4
Molecular formula:
O2Zr
IUPAC Name:
dioxozirconium

Characterisation of nanoforms

Type of information reported:
set of nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: see Remarks
Range:
>= 90 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 1 - <= 20 nm
Percentile:
D50
Range:
>= 2 - <= 50 nm
Percentile:
D90
Range:
>= 4 - <= 100 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 50 - <= 100 %

Crystallinity

Structures
Structure:
crystalline
Range:
>= 90 - <= 100 %
Crystal system:
other: Cubic
Bravais lattice:
face - centred cubic
Description:
The information reported reflects the state of the collected information from most of the co-registrants. However, all the data for structure are not yet identified.

Specific surface area

Range of specific surface area:
>= 10 - <= 400 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
State Form:
solid: bulk


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:
Zirconium dioxide
EC Number:
215-227-2
EC Name:
Zirconium dioxide
CAS Number:
1314-23-4
Molecular formula:
O2Zr
IUPAC Name:
dioxozirconium

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:
Zirconium dioxide
EC Number:
215-227-2
EC Name:
Zirconium dioxide
CAS Number:
1314-23-4
Molecular formula:
O2Zr
IUPAC Name:
dioxozirconium

Characterisation of nanoforms

Type of information reported:
set of nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: Pseudo-spherical
Pure shape:
yes
Typical composition:
ca. 100 %
Range:
>= 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 1 - <= 15 nm
Percentile:
D50
Range:
>= 2 - <= 30 nm
Percentile:
D90
Range:
>= 4 - <= 60 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 99 - <= 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
CeO2 Fluorite
Pure structure:
yes
Typical composition:
ca. 100 %
Range:
>= 99 - <= 100 %
Crystal system:
other: Cubic
Bravais lattice:
face - centred cubic

Specific surface area

Range of specific surface area:
>= 24 - <= 340 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Zirconium dioxide
EC Number:
215-227-2
EC Name:
Zirconium dioxide
CAS Number:
1314-23-4
Molecular formula:
O2Zr
IUPAC Name:
dioxozirconium
Constituent 2
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

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Name of set of nanoforms:
Spheroidal, non-surface treated nanoforms of the reaction mass of cerium dioxide and zirconium dioxide
Cross-reference
Reason / purpose:
other: Analytical information supporting legal entity composition

Shape

Shape description
Shape category:
spheroidal
Shape:
other: Pseudospherical
Pure shape:
yes
Typical composition:
ca. 100 %
Range:
>= 90 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
3 nm
Range:
>= 3 - <= 3 nm
Percentile:
D50
Typical value:
13 nm
Range:
>= 13 - <= 13 nm
Percentile:
D90
Typical value:
72.67 nm
Range:
>= 69 - <= 76 nm
Percentile:
D10
Typical value:
16.67 nm
Range:
>= 16 - <= 17 nm
Percentile:
D50
Typical value:
28 nm
Range:
>= 25 - <= 30 nm
Percentile:
D90
Typical value:
192.67 nm
Range:
>= 174 - <= 209 nm
Additional information:
The pseudospherical particles agglomerate to form larger particulates resembling curved sheets with jagged edges.
Fraction of constituent particles in the size range 1-100 nm:
>= 50 - <= 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
cubic
Pure structure:
yes
Range:
>= 90 - <= 100 %
Crystal system:
cubic
Bravais lattice:
face - centred cubic
Description:
Single phased

Specific surface area

Typical specific surface area:
106.75 m²/g
Range of specific surface area:
>= 96 - <= 114 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Zirconium dioxide
EC Number:
215-227-2
EC Name:
Zirconium dioxide
CAS Number:
1314-23-4
Molecular formula:
O2Zr
IUPAC Name:
dioxozirconium
Constituent 2
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

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Name of set of nanoforms:
Spheroidal, non-surface treated nano-forms of the reaction mass of cerium dioxide and zirconium dioxide

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Typical composition:
90 %
Range:
>= 90 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
7.6 nm
Range:
>= 1 - <= 20 nm
Percentile:
D50
Typical value:
11 nm
Range:
>= 2 - <= 50 nm
Percentile:
D90
Typical value:
15.3 nm
Range:
>= 4 - <= 100 nm
Typical aspect ratio (:1):
1.13 :1
Range of aspect ratio (:1):
>= 1.01 - <= 1.25
Fraction of constituent particles in the size range 1-100 nm:
>= 50 - <= 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
Cubic
Pure structure:
yes
Range:
>= 90 - <= 100 %
Crystal system:
other: cubic
Bravais lattice:
face - centred cubic
Description:
Considering crystallinity, the nanoforms of the registrant are all considered to be predominantly cubic. This is in line with the nano boundary composition in the joint dossier (i.e. 90-100 % cubic).

Specific surface area

Typical specific surface area:
53.66 m²/g
Range of specific surface area:
>= 10 - <= 400 m²/g
Typical volume specific surface area:
323.138 m²/cm³
Skeletal density:
6.022 g/cm³

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Zirconium dioxide
EC Number:
215-227-2
EC Name:
Zirconium dioxide
CAS Number:
1314-23-4
Molecular formula:
O2Zr
IUPAC Name:
dioxozirconium
Constituent 2
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

Composition(s) generated upon use

Other types of composition(s)