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Physical & Chemical properties

Water solubility

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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)