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EC number: 931-228-7 | CAS number: -
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:
- Study initiation date: 24 June 2009 Study completion date: 28. October 2009
- 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:
- Adopted: 27 July 1995
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- yes
- Type of method:
- plate method
- Key result
- Surface tension:
- 53.4 mN/m
- Temp.:
- 20 °C
- Conc.:
- 12.7 mg/L
- Conclusions:
- Surface tension (OECD 115, plate method): 53.4 mN/m at 20 °C.
- Executive summary:
The surface tension of aqueous solutions of the test item was determined according to OECD guideline no. 115 [adopted on 27 July 1995] and EU test method A.5 [Directive 92/69/EEC, Official Journal L 383 A 1992] with the plate method.
Surface tension (at 20°C): 53.4 mN/m. The test item is considered to be surface active.
Reference
Details on measurements:
| First run | Second run | |
| Number of measurements | 10 | 10 |
| Total measuring time [min:s] | 25:35 | 45:35 |
| Measuring time of the last 10 measurements [min:s] | 10:29 | 10:29 |
| Measurement 1 | 53.42 | 53.16 |
| Measurement 2 | 53.45 | 53.28 |
| Measurement 3 | 53.50 | 53.40 |
| Measurement 4 | 53.52 | 53.35 |
| Measurement 5 | 53.57 | 53.38 |
| Measurement 6 | 53.60 | 53.33 |
| Measurement 7 | 53.57 | 53.23 |
| Measurement 8 | 53.60 | 53.11 |
| Measurement 9 | 53.69 | 53.23 |
| Measurement 10 | 53.72 | 53.18 |
| Mean value [mN/m] 1) | 53.56 | 53.26 |
| Surface tension [mN/m] 2) | 53.56 | 53.26 |
| Mean value [mN/m] | 53.4 | |
1) Mean value of the last ten measurements
2) Corrected mean value (measured value x apparatus factor = corrected value)
Description of key information
Surface tension (OECD 115, plate method): 53.4 mN/m at 20 °C.
Key value for chemical safety assessment
- Surface tension:
- 53.4
- in mN/m at 20°C and concentration in mg/L:
- 12.7
Additional information
The surface tension of aqueous solutions of the test item was determined according to OECD guideline no. 115 [adopted on 27 July 1995] and EU test method A.5 [Directive 92/69/EEC, Official Journal L 383 A 1992] with the plate method.
Surface tension (at 20°C): 53.4 mN/m. The test item is considered to be surface active.
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