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Physical & Chemical properties

Auto flammability

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Description of key information

The autoflammability of the butenes ranges between 324-465°C. This range is based on data from the members of the butene category; But-1-ene (CAS no 106 -98 -9), 2-Butene (CAS no 107 -01 -7) and 2 -methylpropene (115 -11 -7). 

Key value for chemical safety assessment

Additional information

The data reported is derived from the members of the butenes category and was obtained from the CRC Handbook (2008). This handbook is peer-reviewed and is considered reliable and suitable for use as a key study for this endpoint.The autoflammability of the butenes category therefore ranges from 324 - 465°C.

The autoflammability of 2-methylpropene is 465˚C (CRC, 2008). The autoflammability of 2-butene ranges from 324-325°C (CRC, 2008). The autoflammability of but-1-ene is 385˚C (CRC, 2008).