Registration Dossier
Registration Dossier
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EC number: 291-759-9 | CAS number: 90480-27-6
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
The vapour pressure was found to be 1.0E-03 Pa at 25 ºC, 4.8E-03 Pa at 65 ºC and 9.6E-03 Pa at 100 ºC
Key value for chemical safety assessment
- Vapour pressure:
- 0.001 Pa
- at the temperature of:
- 25 °C
Additional information
The vapour pressure of the test item was determined in a GLP-compliant study using the effusion method (vapour pressure balance) according to the EU A.4 and OECD 104 protocol. The experiment is deemed valid, conclusive and thus suitable for assessment without restrictions.
A preliminary run was undertaken over the temperature range 20 °C to 110 °C to provide information for a suitable temperature range for the determination.
25 °C Determination
A sequence of runs was started after a sample of test item had been under vacuum for approximately 140.5 hours. Temperature and pressure readings were taken between 20°C and 30°C with a one hour dwell at 20°C between runs.
65 °C Determination
A further sequence of runs was started after a sample of test item had been under vacuum for approximately 165.5 hours. Temperature and pressure readings were taken between 60°C and 70°C with a one hour dwell at 60°C between runs.
100 °C Determination
A further sequence of runs was started after a sample of test item had been under vacuum for approximately 212 hours. Temperature and pressure readings were taken between 95°C and 105°C with a one hour dwell at 95°C between runs.
No decomposition was observed.
In conclusion the vapour pressure was found to be 1.0E-03 Pa at 25 ºC, 4.8E-03 Pa at 65 ºC and 9.6E-03 Pa at 100 ºC
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