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Physical & Chemical properties

Melting point / freezing point

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Description of key information

The melting point of butenes range from -105.52 to -185.34 °C. This range was derived from the members of the butenes category; But-1-ene (CAS no 106 -98 -9), 2 -Butene (CAS no 107 -01 -7) and 2 -methylpropene (CAS no 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 melting point of butene category therefore ranges from -105.52 to -185.34 °C.

The melting point of 2-methylpropene is -140.7˚C (CRC, 2008). The melting point of 2-butene ranges from -138.88 (cis) to -105.52 (trans) ˚C (CRC, 2008). The melting point of but-1-ene is -185˚C (CRC, 2008).