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EC number: 953-079-7 | CAS number: -
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- October 15 to October 28 2020
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- Not conducted under GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 2006
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- internal study
- Type of method:
- gas saturation method
Test material
- Reference substance name:
- 2-methyl-2-(((1RS,2RS)-2,6,6-trimethylcycloheptyl)oxy)propan-1-ol
- Molecular formula:
- C14H28O2
- IUPAC Name:
- 2-methyl-2-(((1RS,2RS)-2,6,6-trimethylcycloheptyl)oxy)propan-1-ol
- Reference substance name:
- 2-((RS)-1-((SR)-3,3-dimethylcyclohexyl)ethoxy)-2-methylpropan-1-ol
- Molecular formula:
- C14H28O2
- IUPAC Name:
- 2-((RS)-1-((SR)-3,3-dimethylcyclohexyl)ethoxy)-2-methylpropan-1-ol
- Reference substance name:
- 2-((RS)-1-((RS)-3,3-dimethylcyclohexyl)ethoxy)-2-methylpropan-1-ol
- Molecular formula:
- C14H28O2
- IUPAC Name:
- 2-((RS)-1-((RS)-3,3-dimethylcyclohexyl)ethoxy)-2-methylpropan-1-ol
- Test material form:
- liquid
Constituent 1
Constituent 2
Constituent 3
- Specific details on test material used for the study:
- Purity: 79% sum of isomers (GC-MS)
Results and discussion
Vapour pressure
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.29 Pa
Any other information on results incl. tables
Test temperature: Min 19.65°C and Max 19.96°C
Headspace vapour concentrations of Helvetol as found after an equilibration time of 20h, 25h, 30h are exposed in the table below:
| Equilibration time (h) | Headspace concentration (micrograms/L) | Headspace concentration (g/m3) |
| 6 | 24.84 | 0.0248 |
| 24 | 28.48 | 0.0285 |
| 30 | 28.85 | 0.0289 |
Applicant's summary and conclusion
- Conclusions:
- The vapour pressure at 20°C was calculated from the average headspace concentration using equation 1 (see paragraph 3.4).
The result was 0.29 Pa.
Therefore:
Vapour pressure of Helvetol: 0.29 Pa at 20°C - Executive summary:
The vapour pressure of the test material Helvetol has been determined to be 0.29 Pa at 20°C using the Gas saturation method.
Therefore:
Vapour pressure of Helvetol: 0.29 Pa at 20°C;
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