Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Relative Density (hexamethyldisiloxane): 0.7638 at 20°C

Key value for chemical safety assessment

Relative density at 20C:

Additional information

A relative density value of 0.7638 at 20°C was reported in a handbook or collection of reliable data which has been subject to peer-review and in which the original data sources are traceable. The result is considered to be reliable and is selected as key study. In another reliable study, a density value of 0.76 g/cm3 at 25°C was reported for the substance.

In other secondary sources to which no reliability could be assigned, density values of 0.7579 g/cm3 at 25°C, 0.765 g/cm3 at 20°C and approximately 0.8 g/cm3 at 20°C were reported for the substance.