Registration Dossier
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EC number: 252-046-8 | CAS number: 34455-29-3
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Remarks:
- The study was conducted according to the test guidelines in effect at the time of study conduct.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Remarks:
- The study was conducted according to the test guidelines in effect at the time of study conduct.
- GLP compliance:
- yes
- Type of method:
- effusion method: vapour pressure balance
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.017 Pa
- Conclusions:
- This study and the conclusions which are drawn from it fulfil the quality criteria (validity, reliability, repeatability).
The test substance was found to have a vapour pressure of 0.017 Pa at 25°C. - Executive summary:
The vapour pressure was measured in accordance with OECD guideline 104. A quantity of test substance (0.9 g) was added to a furnace and the apparatus assembled and evacuated. After stabilisation the furnace temperature was then raised in steps of approximately 3ºC and measurements taken. Two runs were conducted between temperatures of 20 and 39°C. Mass differences and the sample temperature were monitored on a chart recorder on every occasion that the shutter was opened. Vapour pressure was calculated from the data.
The test substance was found to have a vapour pressure of 0.017 Pa at 25°C.
Reference
Description of key information
0.017 Pa at 25°C
Key value for chemical safety assessment
- Vapour pressure:
- 0.017 Pa
- at the temperature of:
- 25 °C
Additional information
OECD Guideline 104
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