Registration Dossier
Registration Dossier
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EC number: 936-023-6 | CAS number: 950782-86-2
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP-Guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
- Surface tension:
- 60.9 mN/m
- Temp.:
- 20 °C
- Remarks on result:
- other: According to the EEC guideline a saturated solution has been prepared and then diluted to 90 % of the saturation concentration.
- Conclusions:
- not surface active
Reference
|
Experiment 1 |
Experiment 2 |
||
|
Time / seconds |
W / mN/m |
Time / seconds |
W / mN/m |
1. measurement |
64.2 |
59.79 |
70.6 |
60.92 |
2. measurement |
108.4 |
59.63 |
103.8 |
60.83 |
3. measurement |
141.9 |
59.57 |
141.7 |
60.80 |
4. measurement |
180.4 |
59.58 |
189.6 |
60.69 |
5. measurement |
224.3 |
.59.58 |
228.1 |
60.73 |
6. measurement |
261.9 |
59.53 |
261.9 |
60.65 |
7. measurement |
300.0 |
59.54 |
302.7 |
60.69 |
8. measurement |
331.8 |
59.48 |
347.8 |
60.65 |
9. measurement |
375.3 |
59.51 |
387.6 |
60.65 |
10. measurement |
413.3 |
59.44 |
428.6 |
60.61 |
Mean Surface Tension mN/m |
59.56 |
|
60.72 |
|
Mean (experiments 1 to 2): σmean = 60.14 mN/m
Standard deviation: 0.82 mN/m
Relative standard deviation: 1.36 %
The mean value, multiplied by the calibration factor (F= 1.0132) yields to:
σ = σmean F = 60.94 mN/m
Description of key information
60.9 mN/m at 20 °C
concentration: 90 % of the saturation concentration
Key value for chemical safety assessment
Additional information
OECD 115, harmonized ring method
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