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EC number: 824-341-7 | CAS number: 357338-13-7
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 07 Jan 2019 - 14 Feb 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- OECD harmonised ring method
Test material
- Reference substance name:
- (S)-2-(5-Oxo-3-propyl-1,2-dihydropyrrol-1-yl) butyramide
- Cas Number:
- 357338-13-7
- Molecular formula:
- C11H18N2O2
- IUPAC Name:
- (S)-2-(5-Oxo-3-propyl-1,2-dihydropyrrol-1-yl) butyramide
- Test material form:
- solid: particulate/powder
- Details on test material:
- - Appearance: Off-white powder
- Storage condition of test material: In refrigerator protected from light
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- 60.31 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
Any other information on results incl. tables
Table: Surface tension measurements:
Measurement |
Time passed after measurement start |
Surface tension |
|
individual (Harkins-Jordan corrected value) |
mean* |
||
1 |
40.95 |
60.72 |
60.31 |
2 |
67.54 |
60.56 |
|
3 |
92.85 |
60.50 |
|
4 |
114.71 |
59.68 |
|
5 |
144.54 |
60.39 |
|
6 |
170.12 |
60.36 |
|
7 |
196.18 |
60.30 |
|
8 |
222.51 |
60.28 |
|
9 |
249.02 |
60.23 |
|
*Mean is calculated from measurements 5 to 9, after equilibrium was reached.
Applicant's summary and conclusion
- Conclusions:
- The surface tension of an aqueous substance solution at 1 g/L was determined to be 60.31 mN/m (at 20°C).
- Executive summary:
The OECD harmonized ring method was used in a GLP study based on EC A.5 and OECD 115. The surface tension of an aqueous substance solution at 1 g/L was determined to be 60.31 mN/m (at 20°C). According to EC A.5 the substance is not surface active.
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