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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:
- 18 September 2019 to 30 September 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 23 March 2006
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- 30 May 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
- Test no.:
- #1
- Temp.:
- 25 °C
- Vapour pressure:
- 0.296 Pa
- Remarks on result:
- other: 298 K
- Test no.:
- #2
- Temp.:
- 65 °C
- Vapour pressure:
- 1.68 Pa
- Remarks on result:
- other: 338 K
- Test no.:
- #3
- Temp.:
- 85 °C
- Vapour pressure:
- 2.35 Pa
- Remarks on result:
- other: 358 K
- Conclusions:
- The vapour pressure of the test item was determined to be 0.296 Pa at 25 °C (298 K), 1.68 Pa at 65 °C (338 K) and 2.35 Pa at 85 °C (358 K).
- Executive summary:
GUIDELINE
The determination was carried out using a procedure designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.
RESULTS
The vapour pressure of the test item was determined to be 0.296 Pa at 25 °C (298 K), 1.68 Pa at 65 °C (338 K) and 2.35 Pa at 85 °C (358 K).
Reference
PRELIMINARY RUN
- The recorded temperatures and mass differences for the preliminary run are shown in Table 1 (attached) together with the calculated vapour pressure values. These results are shown plotted as log10 Vp against the reciprocal of the temperature in Figure 2 (attached).
DEFINITIVE RUN
- The direct values of the vapour pressure at 25 °C are shown in Table 2 and Figure 3 (attached).
- The direct values of the vapour pressure at 65 °C are shown in Table 3 and Figure 4 (attached).
- The direct values of the vapour pressure at 85 °C are shown in Table 4 and Figure 5 (attached).
Description of key information
The vapour pressure of the test item was determined to be 0.296 Pa at 25 °C (298 K), 1.68 Pa at 65 °C (338 K) and 2.35 Pa at 85 °C (358 K) (OECD 104 and EU Method A.4).
Key value for chemical safety assessment
- Vapour pressure:
- 0.296 Pa
- at the temperature of:
- 25 °C
Additional information
GUIDELINE
The determination was carried out using a procedure designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.
RESULTS
The vapour pressure of the test item was determined to be 0.296 Pa at 25 °C (298 K), 1.68 Pa at 65 °C (338 K) and 2.35 Pa at 85 °C (358 K).
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