Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The lower and upper flammability limits of buta-1,2-diene is 1.6-18% by volume in air.

Key value for chemical safety assessment

extremely flammable

Additional information

The Chemsafe (2009) database is supported by BAM (The Federal Institute for Materials Research and Testing. B

AM operates as a national institute for metrology in chemistry in agreement with the Federal Institute of Physics and Metrology (Physikalisch-Technische Bundesanstalt, PTB). On this basis this data is considered reliable and suitable for use as a key study.

Justification for classification or non-classification

On the basis of these upper and lower flammability limits buta-1,2-diene is classified as a Category 1 flammable gas under GHS as it is flammable when in a mixture of 1.6 -18% of less by volume in air, with the hazard statement 'extremely flammable gas'.