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Physical & Chemical properties

Boiling point

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Description of key information

The boiling point of the xylene isomers and ethylbenzene range from 136.2-144.5˚C at 1013 hPa. The boiling point of m-xylene is reported as 139.1˚C, for o-xylene as 144.5˚C, for p-xylene it is 138.4˚C and for ethylbenzene it is 136.2 °C. The mean boiling point is 139.6˚C and this value will be used for the risk assessment.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
139.6 °C

Additional information

Data were taken from the CRC Handbook (Lide, 2008), which is a peer reviewed handbook and so can be considered reliable and suitable for use for this endpoint. The data are supported by results from the Merck Handbook (O'Neil 2006), with m-xylene, o-xylene, p-xylene and ethylbenzene having boiling points of 139.3°C, 144°C, 137 - 138°C and 136.25°C respectively.