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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 (decamethyltetrasiloxane): 62 - 63°C (Closed cup)

Key value for chemical safety assessment

Additional information

Two reliable flash point data are available for the substance. Flash point of 62°C and 63°C were determined for the substance using relevant closed-cup test methods. The results are considered to be reliable and used as weight of evidence. In a secondary source to which no reliability could be assigned, flash point value of 63°C was reported for the substance.


Since the flash point is close to the flammability classification cut-off of ≤60˚C (measured flash point of 62 - 63°C), the substance is therefore classified conservatively as flammable liquid according to the criteria of EC Regulation 1272/2008.