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EC number: 239-743-2 | CAS number: 15667-63-7
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:
- 2008-08-15
- 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)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Key result
- Surface tension:
- 67.1 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension of the aqueous solution at 20 °C is 67.1 mN/m.
Reference
An aqueous solution of the test item in de-ionized water with a concentration of 1.0 g/l was prepared and treated for 30 minutes at 25 ± 0.5 °C by ultrasound. After solving and tempering at 20 ± 0.5 °C for 2 hours, the measurement of the surface tension with the test item was carried out at 20 ± 0.5 °C.
| Measurement | 1 | 2 | 3 | 4 | 5 | 6 |
| Time (s) | 31 | 91 | 152 | 212 | 273 | 333 |
| (mN/m) | 67.08 | 67.03 | 67.06 | 67.10 | 67.14 | 67.06 |
(mN/m)
Mean value: = 67.08 mN/m
Du to the fact that the surface tension is higher than 60 mN/m, the test item has no surface-active properties.
Description of key information
67.1 mN/m at 20 °C
Key value for chemical safety assessment
- Surface tension:
- 67.1
- in mN/m at 20°C and concentration in mg/L:
- 67.1
Additional information
GLP study according to OECD Guideline 115 and EU Method A.5 using the ring method.
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