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EC number: 848-535-6 | CAS number: 2267262-12-2
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2020-04-27
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Key result
- Surface tension:
- 67.4 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1.061 g/L
- Conclusions:
- The mean surface tension of the test item is 67.4 mN/m at 20 °C.
- Executive summary:
A study was conducted according to EU-Method A.5 and OECD Guideline 115 to determine the surface tension of an aqueous solution of the test item using the ring method. Due to the high water solubility a solution with a concentration of 1.061 g/L was prepared and measured twice. The mean surface tension of the test item was determined to be 67.4 mN/m at 20 °C.
Reference
Value No. |
1stMeasurement (5 min after preparing the solution) σ [mN/m] |
2ndMeasurement (27 min after preparing the solution) σ [mN/m] |
1 |
67.03 |
67.69 |
2 |
67.01 |
67.69 |
3 |
67.00 |
67.69 |
4 |
66.99 |
67.69 |
5 |
66.99 |
67.69 |
6 |
66.98 |
67.70 |
Mean value of the individual values |
67.00 ± 0.02 |
67.69 ± < 0.01 |
Total mean value |
67.35 ± 0.35 |
|
The aqueous solution of the test item has a mean surface tension of 67.4 mN/m. According to Regulation (EC) No. 440/2008 Part A. Method A.5 substances showing a surface tension lower than 60 mN/m under the conditions of method A.5 should be regarded as being surface active materials.Thus, the test item is not regarded as surface active material.
Description of key information
The mean surface tension of the test item is 67.4 mN/m at 20 °C.
Key value for chemical safety assessment
- Surface tension:
- 67.4
- in mN/m at 20°C and concentration in mg/L:
- 1 061
Additional information
A study was conducted according to EU-Method A.5 and OECD Guideline 115 to determine the surface tension of an aqueous solution of the test item using the ring method. Due to the high water solubility a solution with a concentration of 1.061 g/L was prepared and measured twice. The mean surface tension of the test item was determined to be 67.4 mN/m at 20 °C.
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