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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Relative density (dodecamethylpentasiloxane): 0.8755 at 20°C

Key value for chemical safety assessment

Relative density at 20C:

Additional information

There are two reliable density data for the substance. Relative density value of 0.8755 at 20°C was reported for the substance in two handbooks of reliable data which has been subject to peer review and in which the original sources are traceable. The results are considered to be reliable and used as weight of evidence. In another secondary source to which no reliability could be assigned, the substance was reported to have a density value of 0.867 g/cm3 at 20°C.