Registration Dossier
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EC number: 273-100-7 | CAS number: 68937-92-8
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- The study was conducted 15 September 2016 to 23 May 2017.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- UK Department of Health, inspected 13 December 2016 certificate issued 15 March 2017
- Type of method:
- gas saturation method
Test material
- Reference substance name:
- Fatty acids, vegetable-oil, polymd., unreacted fraction
- EC Number:
- 273-100-7
- EC Name:
- Fatty acids, vegetable-oil, polymd., unreacted fraction
- Cas Number:
- 68937-92-8
- Molecular formula:
- Substance is a UVCB - no structural or molecular formula is available.
- IUPAC Name:
- 5-[(5E)-icos-5-enoyloxy]icosanoic acid
Constituent 1
- Specific details on test material used for the study:
- Identity: RM1004951
Appearance: Clear yellow to amber liquid
Storage conditions: Room temperature (15 to 25°C)
Batch number: 1367Q13601
Purity: 100%
Expiry date: 17 September 2017
Date received: 05 October 2015
The Certificate of Analysis provided by the Sponsor
Results and discussion
Vapour pressureopen allclose all
- Key result
- Test no.:
- #2
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. 0 Pa
- Key result
- Test no.:
- #3
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. 0 Pa
Any other information on results incl. tables
The first run was high and variable, which was consistent with the loss of impurities and degassing of the sample and therefore the data was not reported.
The results from runs 2 and 3 are detailed in Tables 1 and 2, with plots of log10Vp versus 1/T in Figure 1.
A summary is shown below:
| Run 2 | Run 3 | |
| Correlation | -0.9941 | -0.9990 |
| Slope | -2855 | -2685 |
| Intercept | 6.58 | 6.04 |
| Log Vp at 25°C: | -3.00 | -2.97 |
| Vp (Pa) at 25°C: | 1.0 x 10(-3) | 1.1 x 10(-3) |
The mean vapour pressure at 25°C was 1.0 x 10-3 Pa.
Applicant's summary and conclusion
- Conclusions:
- The vapour pressure of the substance was found to be 1.0 x 10-3 Pa at 25°C.
- Executive summary:
The vapour pressure of the substance was found to be 1.0 x 10-3 Pa at 25°C.
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