Registration Dossier
Registration Dossier
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EC number: 444-960-2 | CAS number: 39148-16-8
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:
- 22 Mar 2001
- 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)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hessisches Ministerium für Umwelt, Energie, Jugend, Familie und Gesundheit, Wiesbaden
- Type of method:
- ring method
- Surface tension:
- 68.5 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
Reference
An aqueous solution at ambient temperature of the test substance with a concentration of 1.0 g/L was prepared. Six measurements at a temperature of 20 °C, every 5 min, were carried out:
Measurement |
1 |
2 |
3 |
4 |
5 |
6 |
Time, min |
0 |
5 |
10 |
15 |
20 |
25 |
W, mN/m |
68.7 |
68.4 |
68.5 |
68.5 |
68.3 |
68.4 |
The mean value, multiplied by the calibration factor F, yields WF = 68.71 mN/m.
The final value of 68.5 mN/m is obtained with respect to the Harkins-Jordan correction.
Description of key information
68.5 mN/m at 20 °C, c = 1 g/L
Key value for chemical safety assessment
- Surface tension:
- 68.5
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The surface tension of the substance was determined according to OECD Guideline 115 and EU Method A.5 (ring method). The substance is not surface-active.
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