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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Auto flammability

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Administrative data

Link to relevant study record(s)

Description of key information

According to the Guidance on Information Requirements and Chemical Safety Assessment, Chapter R.7a: Endpoint specific guidance, only gases classified as flammable according to the CLP Regulation have to be considered. Ozone is not classified as flammable gas.

Key value for chemical safety assessment

Additional information

Additionally, the study for auto-ignition is scientifically not necessary because ozone (O3) is not capable to undergo further reaction with oxygen (O2) which is a prerequisite for combustion.