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EC number: 204-385-8 | CAS number: 120-32-1
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:
- 29 June 2007 to 24 July 2007
- 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)
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- not specified
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Ministerium für Umwelt und Naturschutz, Landwirtschaft und Verbraucherschutz, Düsseldorf, Nordrhein-Westfalen, Germany
- Type of method:
- ring method
- Key result
- Surface tension:
- 57.3 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.09 g/L
Reference
Individual and Final Results
Surface tension (ST) of test substance (0.09 g/L in demineralized water) at 20 °C:
Value 1 61.07 mN/m
Value 2 61.03 mN/m
Value 3 61.12 mN/m
Value 4 61.11 mN/m
Value 5 61.10 mN/m
Value 6 61.08 mN/m
Value 7 61.07 mN/m
Value 8 61.06 mN/m
Value 9 61.06 mN/m
Value 10 61.07 mN/m
Mean value: 61.08 mN/m
Correction factor 1: 0.954
ST Value (σ) after first correction: 58.27 mN/m
The second correction (Harkins and Jordan) was calculated with the following formula:
Surface tension (final corrected) = 0.00085 σ2+ 0.96115 σ - 1.594
Surface tension (final corrected) = 0.0085 * (58.27 mN/m)2+ 0.96115 * 58.27 mN/m – 1.594 = 57.3 mN/m
The surface tension of the test substance is σ =57.3 mN/m.
Description of key information
Surface tension is 57.3 mN/m at 20 ºC with 0.09 g/L solution (OECD 115, ring method).
Key value for chemical safety assessment
- Surface tension:
- 57.3
- in mN/m at 20°C and concentration in mg/L:
- 90
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