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EC number: 811-188-6 | CAS number: 16184-79-5
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:
- 2016-05-10 to 2016-05-27
- 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:
- 43.8 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension of the test item aqueous solution (1 g/L) was found to be 43.8 mN/m at 20 °C using the ring method. The density of the test solution was determined to be 0.998 g/mL.
- Executive summary:
The purpose of this study was to determine the Surface Tension of test item according to EU Method A.5 and OECD 115. In the course of this study aqueous solutions were prepared containing 1 g/L test item in water. Surface tension of these solutions was determined applying the ring method. The test was performed with the help of Krüss Easy Dyne type tensiometer. The surface tension of the test item aqueous solution (1 g/L) was found to be 43.8 mN/m at 20 °C using the ring method.
Reference
Surface tension of the separate solutions was determined with three replicate measuring from each.
Table 1 Data corrected automatically by Harkins-Jordan correction factor
Mass of test item in 500 mL water |
Temperature (°C) |
Surface Tension, mN/m |
|
0.5025 |
19.8 |
44.1 |
44.0 |
19.9 |
44.0 |
||
19.8 |
43.8 |
||
0.5012 |
19.8 |
43.7 |
43.6 |
19.8 |
43.5 |
||
19.7 |
43.5 |
||
Mean |
43.8 |
|
|
Conf. Int. (95%) |
0.26 |
|
|
Description of key information
The surface tension of the test item aqueous solution (1 g/L) was found to be 43.8 mN/m at 20 °C using the ring method. The density of the test solution was determined to be 0.998 g/mL.
Key value for chemical safety assessment
- Surface tension:
- 43.8
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The purpose of this study was to determine the Surface Tension of test item according to EU Method A.5 and OECD 115. In the course of this study aqueous solutions were prepared containing 1 g/L test item in water. Surface tension of these solutions was determined applying the ring method. The test was performed with the help of Krüss Easy Dyne type tensiometer. The surface tension of the test item aqueous solution (1 g/L) was found to be 43.8 mN/m at 20 °C using the ring method.
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