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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Display Name:
Amorphous hydrothermal synthesis product of water, calcium oxide and quartz
Molecular formula:
Not applicable for UVCB substance
IUPAC Name:
Amorphous hydrothermal synthesis product of water, calcium oxide and quartz

Type of Substance

Composition:
UVCB
Origin:
inorganic

Substance Identifiers

Compositions

Boundary Composition(s) open all close all

State Form:
solid: nanoform


Constituent 1
Reference substance name:
X-ray amorphous phase
Molecular formula:
Not applicable (unknown amorphous phase)
IUPAC Name:
X-ray amorphous phase
Constituent 2
Chemical structure
Reference substance name:
Calcium carbonate
EC Number:
207-439-9
EC Name:
Calcium carbonate
CAS Number:
471-34-1
Molecular formula:
CH2O3.Ca
IUPAC Name:
calcium carbonate
Constituent 3
Chemical structure
Reference substance name:
Quartz (SiO2)
EC Number:
238-878-4
EC Name:
Quartz (SiO2)
CAS Number:
14808-60-7
Molecular formula:
O2Si
IUPAC Name:
silicon dioxide
Constituent 4
Chemical structure
Reference substance name:
Calcium dihydroxide
EC Number:
215-137-3
EC Name:
Calcium dihydroxide
CAS Number:
1305-62-0
Molecular formula:
CaH2O2
IUPAC Name:
calcium dihydroxide

Characterisation of nanoforms

Type of information reported:
single nanoform
Name of nanoform:
BC_CSH_nano

Shape

Shape description
Shape category:
elongated
Shape:
rod
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
elongated
Percentileopen allclose all
Percentile:
D10
Range:
> 1 - < 40 nm
Percentile:
D50
Range:
> 10 - < 60 nm
Percentile:
D90
Range:
> 50 - < 160 nm
Range of length:
> 50 - < 500 nm
Range of aspect ratio (:1):
>= 3 - <= 20
Fraction of constituent particles in the size range 1-100 nm:
>= 94 - < 100 %

Crystallinity

Structuresopen allclose all
Structure:
amorphous
Name:
X-ray amorphous phase
Pure structure:
no
Range:
>= 68.7 - <= 88.7 %
Structure:
crystalline
Name:
calcium carbonate (calcite)
Pure structure:
no
Range:
>= 2 - <= 8 %
Structure:
crystalline
Name:
calcium hydroxide (portlandite)
Pure structure:
no
Range:
>= 5 - <= 15 %
Structure:
crystalline
Name:
silicon dioxide (quartz)
Pure structure:
no
Range:
>= 4 - <= 7 %
Structure:
crystalline
Name:
xonotlite (mineral of the calcium silicate hydrate group)
Pure structure:
no
Range:
>= 0 - <= 1 %

Specific surface area

Range of specific surface area:
> 40 - <= 150 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no

Legal Entity Composition(s) open all close all

State Form:
solid: nanoform


Constituent 1
Reference substance name:
X-ray amorphous phase
Molecular formula:
Not applicable (unknown amorphous phase)
IUPAC Name:
X-ray amorphous phase
Constituent 2
Chemical structure
Reference substance name:
Calcium carbonate
EC Number:
207-439-9
EC Name:
Calcium carbonate
CAS Number:
471-34-1
Molecular formula:
CH2O3.Ca
IUPAC Name:
calcium carbonate
Constituent 3
Chemical structure
Reference substance name:
Quartz (SiO2)
EC Number:
238-878-4
EC Name:
Quartz (SiO2)
CAS Number:
14808-60-7
Molecular formula:
O2Si
IUPAC Name:
silicon dioxide
Constituent 4
Chemical structure
Reference substance name:
Calcium dihydroxide
EC Number:
215-137-3
EC Name:
Calcium dihydroxide
CAS Number:
1305-62-0
Molecular formula:
CaH2O2
IUPAC Name:
calcium dihydroxide

Characterisation of nanoforms

Type of information reported:
single nanoform
Name of nanoform:
LE_CSH_nano

Shape

Shape description
Shape category:
elongated
Shape:
rod
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
elongated
Percentileopen allclose all
Percentile:
D10
Typical value:
10 nm
Range:
> 1 - < 40 nm
Percentile:
D50
Typical value:
24.1 nm
Range:
> 10 - < 60 nm
Percentile:
D90
Typical value:
65.7 nm
Range:
> 50 - < 160 nm
Typical length:
175.4 nm
Range of length:
> 50 - < 500 nm
Typical aspect ratio (:1):
7.4
Range of aspect ratio (:1):
>= 3 - <= 20
Additional information:
Values obtained from analysis of TEM images.
Fraction of constituent particles in the size range 1-100 nm:
>= 94 - < 100 %

Crystallinity

Structuresopen allclose all
Structure:
amorphous
Name:
X-ray amorphous phase
Pure structure:
no
Range:
>= 68.7 - <= 88.7 %
Structure:
crystalline
Name:
calcium carbonate (calcite)
Pure structure:
no
Range:
>= 2 - <= 8 %
Structure:
crystalline
Name:
calcium hydroxide (portlandite)
Pure structure:
no
Range:
>= 5 - <= 15 %
Structure:
crystalline
Name:
silicon dioxide (quartz)
Pure structure:
no
Range:
>= 4 - <= 7 %
Structure:
crystalline
Name:
xonotlite (mineral of the calcium silicate hydrate group)
Pure structure:
no
Range:
>= 0 - <= 1 %

Specific surface area

Typical specific surface area:
102 m²/g
Range of specific surface area:
> 40 - <= 150 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no

Composition(s) generated upon use

Other types of composition(s)