Registration Dossier
Registration Dossier
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EC number: 601-419-7 | CAS number: 1162-60-3
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 28 December 2017 - 11 January 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
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:
- 19-norpregn-4-en-20-yn-3-one, 17-hydroxy-7-methyl, (7alpha, 17alpha-)
- EC Number:
- 601-419-7
- Cas Number:
- 1162-60-3
- Molecular formula:
- C21H28O2
- IUPAC Name:
- 19-norpregn-4-en-20-yn-3-one, 17-hydroxy-7-methyl, (7alpha, 17alpha-)
- Test material form:
- solid: particulate/powder
- Details on test material:
- - Physical appearance: off-white to beige powder
- Test item storage: at room temperature
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- 69.33 mN/m
- Temp.:
- 20 °C
- Remarks on result:
- other: Conc. is 90% of test item saturation solubility in water
Any other information on results incl. tables
Table: Surface tension measurements
Measurement |
Time passed after measurement start |
Surface tension |
|
individual σ multiplied by Harkins-Jordan corrected value |
mean σ multiplied by Harkins-Jordan corrected value |
||
1 |
42.18 |
69.55 |
69.33 |
2 |
69.08 |
69.32 |
|
3 |
97.26 |
69.27 |
|
4 |
123.84 |
69.26 |
|
5 |
150.01 |
69.24 |
|
Applicant's summary and conclusion
- Conclusions:
- The surface tension of an aqueous solution of the substance at 90% of its saturation solubility in water was determined to be 69.33 mN/m (at 20°C).
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