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EC number: 671-177-5 | CAS number: 143314-16-3
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental Starting Date: 2015-06-18; Experimental Completion Date: 2015-07-16
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- resp. EU Method A.4 (Vapour Pressure)
- Deviations:
- yes
- Remarks:
- The test item was stored from the date of receipt to last usage at 15.6 - 25.8 °C. This is considered as uncritical for the outcome of the study as it can be considered htat the storage for only 8 hours was above 25 °C has no impact on the test item.
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Landesamt für Umwelt, Wasserwirtschaft und Gewerbeaufsicht; Kaiser-Friedrich-Straße 7; D-55116 Mainz
- Type of method:
- effusion method: vapour pressure balance
Test material
- Reference substance name:
- 17PI120_1
- IUPAC Name:
- 17PI120_1
- Test material form:
- other: viscous liquid
- Details on test material:
- Stabilized EMIM BF4:
Appearance: lightly yellow clear viscous liquid
Purity: 93.36% (EMIM+, HPLC); 86.68% (BF4-, titration); 4.89%(Stabilizer, HPLC)
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: calculated from regression euqation: y = -507.,7x + 11,657; r = -0.9936
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: calculated from regression euqation: y = -507.,7x + 11,657; r = -0.9936
Transition / decomposition
- Transition / decomposition:
- yes
- Transition temp.:
- 418.6 °C
Applicant's summary and conclusion
- Executive summary:
The vapour pressure of stabilized EMIM BF4 was determined following EU A.4 using the effusion method (weight loss).
Vaour pressure was examinde at 7 different temperatures. 4 temperatures could be evaluated as thes showed relevant and reproducible weight loss. For these temperatures, 1/T was plotted against log (P)
Experiment T Mean P Stand.Dev.P RSD P No. K Pa Pa % 4 348.2 1.16E-03 4.61E-04 39.9 5 363.2 5.77E-03 7.59E-04 13.1 6 378.2 1.35E-02 1.71E-03 12.7 7 393.2 6.22E-02 3.08E-04 0.5 The graph 1/T vs. log (P) shows a straight line with a correlation of -0.9936
For the test item stabilized EMIM BF4 the following vapour pressures at 20 °C and at 25 °C were calculated from the regression equation:
Vapour pressure at 20 °C: 2.20E-06
Vapour pressure at 25 °C: 4.30E-06
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