Registration Dossier

Physical & Chemical properties

Water solubility

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Water solubility [octamethylcyclotetrasiloxane]: 0.056 mg/l at 23°C

Key value for chemical safety assessment

Water solubility:
0.056 mg/L
at the temperature of:
23 °C

Additional information

Two measured reliable studies for the solubility of the substance in freshwater are available. A water solubility value of 0.056 mg/l at 23°C was determined for the substance using equilibration by slow-stirring method. The result is considered to be reliable and selected as key study. This value is supported by a measure water solubility of 0.07 mg/l at 25°C using a relevant test method. The key study was selected as the most recent study and in line with the UK RAR. In a secondary source to which reliability could not be assigned, water solubility of 0.02 mg/l at 25°C was reported for the substance.

In synthetic seawater, the substance has a measured solubility of 0.033 mg/l at 25°C.