Registration Dossier
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EC number: 947-360-3 | CAS number: -
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From February 26, 2015 to March 06, 2015
- 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
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- not specified
- Type of method:
- dynamic method
- Specific details on test material used for the study:
- Batch no.: SEALS 211-104-06-01
Appearance: white, waxy solid - Key result
- Temp.:
- 20 °C
- Vapour pressure:
- <= 9.6 Pa
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- <= 150 Pa
- Conclusions:
- Under the study conditions, the vapour pressure of the test substance was determined to be ≤9.6 Pa at 20°C and ≤150 Pa at 50°C.
- Executive summary:
A study was conducted to determine the vapour pressure of the test substance according to OECD Guideline 104 (Grain-Watson estimation) similar to the EU method A.4 (dynamic method). The practical test performance was based on the in-house test procedure VTA(S) 31X07001.01: ‘determination of the vapour pressure curve of solid and liquid substances by means of DSC’. Under the study conditions, the vapour pressure of the test substance was determined to be ≤9.6 Pa at 20°C and ≤150 Pa at 50°C (Kintrup, 2015).
Reference
- The experimentally determined vapour pressure of the test substance at 20°C was not in the recommended range of 1 to 1000 mbar for DSC-measurements. Therefore, an estimation procedure in accordance with the test method OECD Guideline 104 was used. This method is applied for vapour pressures between 103 and 10-7mbar.
- The vapour pressure P for solids can be calculated using the an adapted equation for liquids.
Description of key information
The vapour pressure was determined according to OECD Guideline 104 (Grain-Watson estimation) and similar to EU Method A.4 (dynamic method) (Kintrup, 2015)
Key value for chemical safety assessment
- Vapour pressure:
- 9.6 Pa
- at the temperature of:
- 20 °C
Additional information
and ≤150 Pa at 50°C
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