Registration Dossier
Registration Dossier
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EC number: 209-968-0 | CAS number: 599-64-4
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
Vapour pressure of p-Cumylphenol was determined to be 1.69E-4 Pa at 25 °C by extrapolation from vapour pressure data in the temperature range of 137 to 285 °C.
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
Two estimates for p-Cumylphenol vapour pressures were available. An unpublished report determined the vapour pressure of p-Cumylphenol to be 1.69E-4 Pa at 25 °C by extrapolation from vapour pressure data in the temperature range of 137 to 285 °C.
An HPV Challenge Program submission reported the vapour pressure of p-Cumylphenol to be 2.28E-5 mm Hg (3.0E-3 Pa) at 25 °C, estimated by calculation using the Syracuse Chemical Properties Prediction Program, MPBWIN v 1.30 which is based on the modified Grain method.
According to the ECHA Guidance on information requirements and chemical safety assessment Chapter R.7a: Endpoint specific guidance, for single organic substances experimentally derived vapour pressures, or values which have been evaluated in reviews and assigned recommended values, are preferred over predicted values. Additionally, experimental vapour pressures usually do not cover the full pressure-temperature range and vapour pressure may, for some substances, change considerably according to temperature even within a temperature range of only 10 °C. In such cases an estimated vapour pressure at the relevant temperature should be obtained either from interpolation from vapour pressures at 10 and 30 °C or by use of extrapolation methods. For this reason the vapour pressure determined from extrapolation of actual measured values was selected over that of the calculated value as the key value.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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