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EC number: 268-453-9 | CAS number: 68092-29-5
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 18 Sep 2017 to 07 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:
- Tall oil, compd. with triethanolamine
- EC Number:
- 268-453-9
- EC Name:
- Tall oil, compd. with triethanolamine
- Cas Number:
- 68092-29-5
- Molecular formula:
- Various
- IUPAC Name:
- Tall oil, compd. with triethanolamine
- Test material form:
- liquid
- Details on test material:
- Appearance: Amber liquid
Storage conditions: At room temperature
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- 35 mN/m
- Temp.:
- 20 °C
- Remarks on result:
- other: Conc.= 90% of test item saturation solubility
Any other information on results incl. tables
Table: Surface tension measurements
Measurement |
Time passed after transfer test solution to test vessel |
Surface tension [mN/m] |
||
individual |
mean |
mean (1) |
||
1 |
15 |
36.2 |
36.2 |
35.0 |
2 |
16 |
36.2 |
|
|
3 |
17 |
36.0 |
|
|
4 |
18 |
36.5 |
|
|
5 |
19 |
36.0 |
|
|
(1) Mean multiplied by the calibration factor and Harkins-Jordan corrected.
Applicant's summary and conclusion
- Conclusions:
- The surface tension of an aqueous substance solution at 90% of its saturation solubility was determined to be 35.0 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 90% of its saturation solubility was determined to be 35.0 mN/m (at 20°C). According to the EC A.5 guideline the substance is surface active.
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