Registration Dossier
Registration Dossier
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EC number: 201-143-3 | CAS number: 78-79-5
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
The reported vapour pressure of isoprene at 21.1°C is 63.397kPa and at 26.6°C is 77.973kPa
Key value for chemical safety assessment
- Vapour pressure:
- 63.397 kPa
- at the temperature of:
- 21.1 °C
Additional information
Zwolinski and Wilhoit (1971) is a peer reviewed handbook and so can be considered reliable and suitable for use as the key study for this endpoint. This handbook was also used as the key reference in the OECD SIDS for isoprene (2005).
The supporting study (WHO ICSC, 1997) is also a peer reviewed source and reports a value of 53.2 kPa at 20 °C and supports the value reported in the key study.
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