Registration Dossier
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EC number: 947-589-9 | 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 November 04, 2015 to November 17, 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.: RE 10-7
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 15 Pa
- Conclusions:
- Under the study conditions, the vapour pressure of the substance was determined to be 15 Pa at 20°C.
- Executive summary:
A study was conducted to determine the vapour pressure of the substance according to OECD Guideline 104. The vapour pressure of the test substance was determined by the dynamic method (differential scanning calorimetry). The experimentally determined vapour pressure of the test substance at 20°C was not suitable to measure the vp of test substances containing more than 1% moisture. Therefore an estimation procedure (Grain-Watson method) was used which gives reliable data for poorly volatile substances with up to 10% moisture. This method is applied for vapour pressures between 103 to 10-7mbar. The vapour pressure of the test substance at 20°C and 50°C were determined using equations. Under the study conditions, the vapour pressure of the substance was estimated to be 15 Pa at 20°C (Kintrup, 2015 and Dobbelstein, 2017).
Reference
The test substance has a vapour pressure of <= 1.5E-04 atm (<=1.5E01 Pa; <=1.5E-01 mbar) at 20°c and of 1.3E-03 atm (<=1.3E02 Pa; <=1.3 mbar) at 50°C. 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.
Description of key information
The vapour pressure was determined according to OECD Guideline 104 (Grain-Watson method) (Kintrup, 2015; Dobbelstein, 2016).Key value for chemical safety assessment
- Vapour pressure:
- 15 Pa
- at the temperature of:
- 20 °C
Additional information
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