Registration Dossier
Registration Dossier
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EC number: 947-318-4 | CAS number: -
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 19 Sep 2017 - 24 Nov 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 2008
- 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:
- Potassium hydrogen 2-octadecenylsuccinate
- EC Number:
- 296-086-4
- EC Name:
- Potassium hydrogen 2-octadecenylsuccinate
- Cas Number:
- 92218-39-8
- Molecular formula:
- C22H40O4.K
- IUPAC Name:
- hydrogen potassium 2-octadec-1-en-1-ylsuccinate
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- 32.7 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
Any other information on results incl. tables
Table: Surface tension measurements
Measurement |
Time passed after transfer test solution to test vessel [minutes] |
|
Surface tension (mN/m) |
|
individual |
mean (1) |
mean (2) |
||
1 |
16 |
34.4 |
33.6 |
32.7 |
2 |
17 |
33.5 |
|
|
3 |
18 |
33.6 |
|
|
4 |
19 |
33.4 |
|
|
5 |
20 |
33.6 |
|
|
6 |
21 |
33.7 |
|
|
(1) Mean calculated from measurements 2 to 6, after equilibrium was reached.
(2) Multiplied by the calibration factor and Harkins-Jordan corrected
Applicant's summary and conclusion
- Conclusions:
- The surface tension of an aqueous substance solution at 1 g/L was determined to be 32.7 mN/m (at 20°C).
- Executive summary:
Using the OECD harmonized ring method in a GLP study according to EC A.5 and OECD 115, the surface tension of an aqueous substance solution at 1 g/L was determined to be 32.7 mN/m (at 20°C). According to the EC A.5 guideline the substance is surface active.
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