Registration Dossier
Registration Dossier
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EC number: 469-300-0 | CAS number: 63675-73-0
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Jun 2006 to Feb 2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
- Report date:
- 2007
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- GLP compliance:
- yes
- Type of method:
- ring method
Test material
- Reference substance name:
- -
- EC Number:
- 469-300-0
- EC Name:
- -
- Cas Number:
- 63675-73-0
- Molecular formula:
- Hill Empirical Formula: C16H16O3S CAS Empirical Formula: C16H16O3S
- IUPAC Name:
- 1-(4-methoxyphenyl)-2-[(3-methoxyphenyl)sulfanyl]ethan-1-one
- Test material form:
- solid: particulate/powder
- Details on test material:
- Sponsor batch no: 151105Purity: 99.9%
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 72.75 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 vol%
Any other information on results incl. tables
The measured surface tension of pure water at a nominal temperature of 20C was determined to be 73.5mN/m. The literature value at this temperature is 72.75mN/m, and therefore the calibration factor was determined to be 0.9898.
The results for the test substance solution, which was 90% saturated are presented in the table below. The mean measured temperature during the test was 20.1C.
After application of the calibration factor, the mean results was 72.75mN/m.
Surface tension readings at 20C
| Time after filling vessel (min) | Surface tension (mN/m) |
| 8 | 73.5 |
| 10 | 73.5 |
| 13 | 73.5 |
| 15 | 73.5 |
| 60 | 73.5 |
| Mean | 73.5 |
Applicant's summary and conclusion
- Conclusions:
- The surface tension at 20°C of a 90% saturated solution of Beta Ketosulfide was determined to be 72.75 mN/m, and is therefore not considered to be surface active.
- Executive summary:
The experimental procedure followed is described in EC Directive 92/69/EEC Method A5 and OECD Guideline 115. The surface tension at 20C of a 90% saturated solution of Beta Ketosulfide was determined to be 72.75mN/m.
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