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EC number: 603-303-1 | CAS number: 128819-84-1
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 07 Mar - 04 May 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- adopted in 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- adopted in 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz,Wiesbaden, Germany
- Type of method:
- ring method
Test material
- Reference substance name:
- Reaction products of trimethylolpropane triglycidyl ether and acrylic acid
- EC Number:
- 603-303-1
- Cas Number:
- 128819-84-1
- Molecular formula:
- C18 H30 O9, C21 H35 Cl O10, C24 H38 O12 and C27 H43 Cl O13 (mainly)
- IUPAC Name:
- Reaction products of trimethylolpropane triglycidyl ether and acrylic acid
Constituent 1
- Specific details on test material used for the study:
- Storage conditions: ambient temperature [< 40 °C], keep container tightly closed, protected from sunlight
Results and discussion
Surface tension
- Surface tension:
- ca. 46.9 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.9 g/L
Any other information on results incl. tables
Measurement results are shown in Table 1 below.
Table 1 – Measured surface tension values
Value no. |
1st measurement (15 min after test solution preparation)σ[mN/m] |
2nd measurement (37 min after test solution preparation)σ[mN/m] |
1 |
47.30 |
46.53 |
2 |
47.26 |
46.50 |
3 |
47.24 |
46.48 |
4 |
47.22 |
46.46 |
5 |
47.20 |
46.45 |
6 |
47.19 |
46.43 |
Mean value of individual values |
47.23 ± 0.03 |
46.48 ± 0.03 |
Total mean value |
46.86 ± 0.38 |
|
Discussion
Substances with a surface tension < 60 mN/m under the conditions of the EC Method A.5 should be regarded as being surface active.
Conclusion
The surface tension of an aqueous solution of test item at a concentration of 90% of the saturation solubility and at 20 °C was found to be equal to 46.9 mN/m. Therefore, the test item is considered as surface-active.
Applicant's summary and conclusion
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