Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
partition coefficient
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance is inorganic
Justification for type of information:
The study does not need to be conducted because the substance is inorganic.
The surface treatment applied does not modify the properties of the substance.
This justification applies to both sets of nanos: the "Zinc oxide nano with and without hydrophilic surface treatment" set and the "Zinc oxide nano - hydrophobic surface treatment" set.

Description of key information

Not applicable to metal compounds; The study does not need to be conducted if the substance is inorganic (column 2 of Annex VII of the REACH regulation).


The dispersion stability of the nanoforms was investigated and is reported in section 5.7.1. Dispersion stability of nanoforms.

Key value for chemical safety assessment

Additional information

Not applicable to metal compounds; The study does not need to be conducted if the substance is inorganic (column 2 of Annex VII of the REACH regulation).


The dispersion stability of the nanoforms was investigated and is reported in section 5.7.1. Dispersion stability of nanoforms.