Registration Dossier
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EC number: 604-721-7 | CAS number: 150114-71-9
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:
- 3 December 2002 to 12 December 2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Specific details on test material used for the study:
- Purity: 94.5%
- Key result
- Surface tension:
- 71 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 other: % saturated
- Conclusions:
- The surface tension of the test material was determined to be 71.0 mN/m. As the result is greater than 60 mN/m, the test material is not considered to be surface active.
- Executive summary:
The surface tension of the test material was determined under GLP conditions and in accordance with the standardised guidelines OECD 115 and EU Method A.5, following the ring method.
The surface tension of the test material was determined to be 71.0 mN/m. As the result is greater than 60 mN/m, the test material is not considered to be surface active.
Reference
Table 1: Results
Time (mins) |
Surface tension (mN/m) |
|||
Measured |
Calibration corrected |
|||
A |
B |
A |
B |
|
0 |
72.5 |
72.0 |
72.5 |
72.0 |
5 |
72.5 |
72.0 |
72.5 |
72.0 |
10 |
72.0 |
72.0 |
72.0 |
72.0 |
15 |
72.0 |
72.0 |
72.0 |
72.0 |
20 |
72.0 |
72.0 |
72.0 |
72.0 |
25 |
72.0 |
71.5 |
72.0 |
71.5 |
30 |
72.0 |
72.0 |
72.0 |
72.0 |
Overall mean surface tension |
72.0 |
|||
Overall mean calibration corrected surface tension |
72.0 |
|||
Mean surface tension corrected for weight of test material |
71.0 |
|||
From the results there was no apparent time dependence of surface tension after transfer to the measuring vessel.
Description of key information
Surface tension = 71.0 mN/m at 20 °C (90 % saturated solution), OECD 115, EU Method A.5, Comb (2003)
Key value for chemical safety assessment
- Surface tension:
- 71
- in mN/m at 20°C and concentration in mg/L:
- 2.2
Additional information
The surface tension of the test material was determined under GLP conditions and in accordance with the standardised guidelines OECD 115 and EU Method A.5, following the ring method. The study was assigned a reliability score of 1 in line with the criteria of Klimisch et al. (1997).
The surface tension of the test material was determined to be 71.0 mN/m. As the result is greater than 60 mN/m, the test material is not considered to be surface active.
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