Registration Dossier
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EC number: 947-340-4 | 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:
- 2011-12-07 - 2013-02-14
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The GLP study was conducted according to an internationally accepted guideline. All study parameters are given in detail.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: by loss of weight or by trapping vaporisate
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Transition / decomposition:
- no
- Conclusions:
- For the test item Ukanol FR 70, the following vapour pressures at 20 °C and at 25 °C were calculated from the regression equation:
Vapour pressure at 20 °C: 6.26 * 10-06 Pa
Vapour pressure at 25 °C: 8.95 * 10-06 Pa - Executive summary:
The vapour pressure of Ukanol FR 70 was determined following EU A.4 by the effusion method (weight loss).
Vapour pressure at nine different temperatures was examined. Experiments 1 - 4 (temperatures 30, 45, 60 and 75 °C) showed no significant weight loss and experiment 7 (temperature 120 °C) was considered as outlier. Therefore, these experiments were not included in the evaluation. Four temperatures were evaluated, but they showed medium to poor reproducibility, giving relative standard deviations of more than 30% (except for experiment 9 at 150 °C which showed a RSD of only 4.6 %). This is considered to be due to the test items purity (90 %). Vapour pressure of mixtures cannot be reasonably determined using a dynamic method (where test item composition changes in the course of the determination); but the static method is not suitable for test items with very low vapour pressures. Therefore, the effusion method was evaluated and the linear regression gave a correlation coefficient r of -0.9971.
Reference
Description of key information
The vapour pressure of Ukanol FR 70 was determined following EU A.4 by the effusion method (weight loss).
For the test item Ukanol FR 70, the following vapour pressures at 20 °C and at 25 °C were calculated from the regression equation:
Vapour pressure at 20 °C: 6.26 * 10-06 Pa
Vapour pressure at 25 °C: 8.95 * 10-06 Pa
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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