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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Water solubility

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Administrative data

Link to relevant study record(s)

Description of key information

The  measured solubility of Zn in ZnO is 2.9 mg/l. (OECD 105 guideline)
The measured solubility of ZnO nano is < 50mg/l (under conditions as described)

Key value for chemical safety assessment

Water solubility:
2.9 mg/L
at the temperature of:
20 °C

Additional information

For the solubility test on nano forms, results were the same for coated and uncoated forms (undisclosed data from Prospect study)