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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Flash point

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Administrative data

Link to relevant study record(s)

Description of key information

Flash point [dodecamethylcyclohexasiloxane]: 91°C at 776 mmHg (ASTM D93)

Key value for chemical safety assessment

Flash point at 101 325 Pa:
91 °C

Additional information

A flash point value of 91°C at 776 mmHg was determined for the substance using a closed-cup method according to ASTM D93 Test Method. The result is considered to be reliable and is selected as key study. In the same report, a flash point value of 109°C at 755 -759 mmHg was reported for the substance using an open-cup method according to ASTM D92.

A measured flash point of 91°C at 1013 hPa and a boiling point of 245°C at 1013 hPa indicate that the substance should not be classified for flammability in accordance with the criteria of Regulation (EC) No.1272/2008.