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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Classification & Labelling & PBT assessment

PBT assessment

Administrative data

PBT assessment: overall result

Reference
Name:
Set of similar nanoforms, Silicic acid, aluminum sodium salt (CAS 1344-00-9, NAS); amorphous (boundary composition)
Type of composition:
boundary composition of the substance
State / form:
solid: nanoform
Reference substance:
Set of similar nanoforms, Silicic acid, aluminum sodium salt (CAS 1344-00-9, NAS); amorphous (boundary composition)
Reference substance:
Set of similar nanoforms, Silicic acid, aluminum sodium salt (CAS 1344-00-9, NAS); amorphous (boundary composition)
Reference substance:
Set of similar nanoforms, Silicic acid, aluminum sodium salt (CAS 1344-00-9, NAS); amorphous (boundary composition)
Reference substance:
Set of similar nanoforms, Silicic acid, aluminum sodium salt (CAS 1344-00-9, NAS); amorphous (boundary composition)
Type of information reported:
set of nanoforms
Name of set of nanoforms:
Nanostructured Silicic acid, aluminium sodium salt (NAS, EC 215-684-8, CAS 1344-00-9)
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Shape category:
spheroidal
Percentile:
D10
Range:
> 2.5 - <= 15 nm
Percentile:
D50
Range:
>= 5 - <= 100 nm
Percentile:
D90
Range:
>= 10 - <= 500 nm
Additional information:
Constituent particles are present in aggregates and agglomerates.
Fraction of constituent particles in the size range 1-100 nm:
> 50 - <= 100 %
Structure:
amorphous
Name:
Amorphous
Pure structure:
yes
Range:
>= 99.7 - <= 100 %
Description:
amorphous
Range of specific surface area:
>= 25 - <= 500 m²/g
Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
PBT status:
PBT assessment does not apply
Justification:

According to the Guidance on information requirements and chemical safety assessment, Chapter R.11 (November 2012): PBT assessment,


"the PBT and vPvB criteria of Annex XIII to the regulation do not apply to inorganic substances”.


Therefore, Silicic acid, aluminum sodium salt, is not considered to require any further assessment of PBT properties.