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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


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Administrative data

Link to relevant study record(s)

Description of key information

Density [dodecamethylcyclohexasiloxane]: 0.98 g/cm³ at 20°C 

Key value for chemical safety assessment

Relative density at 20C:

Additional information

A relative density value of 0.98 at 20°C was reported for the substance in a handbook which has been subject to peer-review and in which the original data sources are traceable. A density value of 0.96g/cm³ at 25°C was determined for the substance using the interpolation from a temperature-density correlation by the American Institute of Chemical Engineers (AlChE). Both results are considered to be reliable and these two sources of data are used as weight of evidence for this endpoint.

In a secondary source to which reliability could not be assigned, a density value of 0.97 g/cm³ at 20°C was reported for the substance