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EC number: 220-912-4 | CAS number: 2935-90-2
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2005-03-15 to 2005-04-19
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study conducted according to OECD guideline 104 (Vapour Pressure Curve).
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 005
- Report date:
- 2005
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Principles of method if other than guideline:
- N/A
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- The Swiss GLP Monitoring Authorities
- Type of method:
- dynamic method
Test material
- Reference substance name:
- Methyl 3-mercaptopropionate
- EC Number:
- 220-912-4
- EC Name:
- Methyl 3-mercaptopropionate
- Cas Number:
- 2935-90-2
- Molecular formula:
- C4H8O2S
- IUPAC Name:
- methyl 3-sulfanylpropanoate
- Details on test material:
- - Name of test material (as cited in study report): methyl 3-mercaptopropionate
- Molecular formula (if other than submission substance): N/A
- Molecular weight (if other than submission substance): N/A
- Smiles notation (if other than submission substance): N/A
- InChl (if other than submission substance): N/A
- Structural formula attached as image file (if other than submission substance): N/A
- Substance type: Active
- Physical state: liquid
- Stability under test conditions: N/A
- Storage condition of test material: in the refrigerator at about 4 degrees C
- Other: N/A
Constituent 1
Results and discussion
Vapour pressure
- Temp.:
- 25 °C
- Vapour pressure:
- 2.86 hPa
Any other information on results incl. tables
The boiling temperature and the respective vapour pressure were measured during this study. Based on the experimental results, the vapour pressure curve In Pvp versus 1/T was plotted. The vapour pressure of 3- mercaptopropanoic acid methyl ester (MMP) at 25 degrees C was extrapolated from the determined values for each test. The extrapolated vapour pressure of the first experiment was 2.28 x 10 hPa, which is equal to 2.28 x 10^2 Pa at 25 deg. C. The second test indicates a vapour pressure at 25 degrees C of 3.44 x 10 hPa, which is equal to 3.44 x 10^2 Pa.
The vapour pressure of 3-mercaptopropanoic acid methyl ester (MMP) at 25 degrees C was calculated as the mean from both experiments to be: 2.86 x 10^2 Pa at 25 degrees.
Applicant's summary and conclusion
- Conclusions:
- The vapour pressure of MMP at 25 deg. C was calculated as the mean from both experiments to be 2.86 hPa, which is equal to 286 Pa.
- Executive summary:
N/A
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