Registration Dossier
Registration Dossier
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EC number: 614-970-3 | CAS number: 69444-47-9
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:
- 2006-06-22 to 2006-09-13
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same 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)
- Remarks:
- signed 2005-06-09
- Type of method:
- OECD harmonised ring method
- Surface tension:
- 72 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension of a 1 g/l aqueous solution of DIGIRENA SA TEMABF4 anhydrous was found to be 72.0 mN/m. As the result is greater than 60 mN/m, the test substance is not considered to be surface active.
Reference
Test temperature: 20 °C
Solution concentration: 1 g/L
Solution age: Prepared immediately before measurement
Initial values for the surface tension were obtained as soon as possible after transfer of the aqueous solution to the measurement vessel.
Time (minutes) |
Surface tension (mN/m) |
|||
Measured |
Calibration corrected |
|||
A |
B |
A |
B |
|
0 |
72.5 |
72.5 |
72.5 |
72.5 |
5 |
72.5 |
72.5 |
72.5 |
72.5 |
10 |
72.0 |
72.5 |
72.0 |
72.5 |
15 |
72.5 |
73.0 |
72.5 |
73.0 |
20 |
72.5 |
72.5 |
72.5 |
72.5 |
| 25 | 72.5 | 72.5 | 72.5 | 72.5 |
| 30 | 72.5 | 72.5 | 72.5 | 72.5 |
From the results there was no apparent time dependence of surface tension after transfer to the measuring vessel.
Overall mean calibration corrected surface tension = 72.5 mN/m
Harkins-Jordan* corrected value = 72.0 mN/m [*HARKINS, W.D. and JORDAN, H.F., J. Amer. Chem. Soc. 52, 1751 (1930).
Description of key information
The surface tension of a 1 g/L aqueous solution of DIGIRENA SA TEMABF4 anhydrous was found to be 72.0 mN/m. As the result is greater than 60 mN/m, the test substance is not considered to be surface active.
Key value for chemical safety assessment
- Surface tension:
- 72
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
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