Registration Dossier
Registration Dossier
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EC number: 221-220-5 | CAS number: 3033-62-3
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
The Vapour pressure of the test substance is determined to be 0.49 hPa at 20°C.
Key value for chemical safety assessment
- Vapour pressure:
- 49 Pa
- at the temperature of:
- 20 °C
Additional information
A vapour pressure of 0.49 hPa at 20°C is reported. Extrapolation of experimental data measured at temperatures ranging from 29 to 190°C was used to determine this vapour pressure. The robust study summary is based upon a company study report. The study report provides the Antoine vapour pressure-temperature correlation. However, the methods used to generate the Antoine coefficients from the data are not provided. Consequently, the reliability of the data or the calculated vapour pressure is with restrictions. This study has been selected because the report contained the Antoine pressure-temperature correlation which has been derived from the measured data.
A vapour pressure value of 0.37 hPa at 20°C is sourced from a toxicological report but no further details are available. Therefore the reliability of the result is not assignable. A vapour pressure of 0.99 hPa at 20°C was also obtained using an appropriate QSAR method. The results are considered to be reliable and support the result of the key study.
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