Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Key value for chemical safety assessment

Flash point at 101 325 Pa:
31 °C

Additional information

Styrene has harmonized classification at EU level in accordance with the CLP and DSD/DPD criteria and it is classified as being Flammable Liquid 3 (H226: Flammable liquid and vapour) and R10 flammable liquid substance.


The value for flashpoint of styrene of 31°C (closed cup) are reported in handbooks and referred in the International Chemical Safety Card (ICSC 0073) developed by the International Programme on Chemical Safety (IPCS) and in the EU Risk Assessment Report for Styrene.