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EC number: 209-007-5 | CAS number: 552-22-7
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:
- 14 March 2018 to 05 April 2018
- 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:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: isothermal thermogravimetry
- Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0.014 Pa
- Key result
- Test no.:
- #2
- Temp.:
- 25 °C
- Vapour pressure:
- 0.022 Pa
- Conclusions:
- Under the conditions of this study, the vapour pressure of the test material was determined to be 0.014 Pa and 0.022 Pa at 20°C and 25°C, respectively.
- Executive summary:
The vapour pressure of the test material was investigated in a study which was conducted in accordance with the standardised guidelines OECD 104, EU Method A.4 and EPA OPPTS 830.7950, under GLP conditions, by the isothermal thermogravimetric effusion method.
Under the conditions of this study, the vapour pressure of the test material was determined to be 0.014 Pa and 0.022 Pa at 20 °C and 25 °C, respectively.
Reference
The vapour pressure regression curve constructed using the data of Experiment 2 had a coefficient of correlation of < 0.99. The data for this Experiment was not used for the calculation of the vapour pressure in the range 60 °C – 80 °C.
The vapour pressure regression curve of the log PT of the test material as function of the reciprocal temperatures is attached to this study summary.
The equation of the curve was:
log PT = -3732 x 1/T + 10.87 (r = 0.993, n = 6).
Description of key information
Under the conditions of this study, the vapour pressure of the test material was determined to be 0.014 Pa and 0.022 Pa at 20 and 25 °C, respectively.
Key value for chemical safety assessment
- Vapour pressure:
- 0.014 Pa
- at the temperature of:
- 20 °C
Additional information
The vapour pressure of the test material was investigated in a study which was conducted in accordance with the standardised guidelines OECD 104, EU Method A.4 and EPA OPPTS 830.7950, under GLP conditions, by the isothermal thermogravimetric effusion method. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).
Under the conditions of this study, the vapour pressure of the test material was determined to be 0.014 Pa and 0.022 Pa at 20 and 25 °C, respectively.
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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