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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Viscosity

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
viscosity
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance is a solid
Justification for type of information:
ZnO does not melt. Testing of viscosity on the melted liquid form is thus not possible.

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

Study does not need to be conducted because the substance is a solid.


ZnO does not melt. Testing of viscosity on the melted liquid form is thus not possible.

Key value for chemical safety assessment

Additional information

Study does not need to be conducted because the substance is a solid.


ZnO does not melt. Testing of viscosity on the melted liquid form is thus not possible.