Registration Dossier
Registration Dossier
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EC number: 230-711-3 | CAS number: 7287-19-6
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:
- 19 Apr 1995
- 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)
- Version / remarks:
- 1981
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 304 ("Surface active agents - Determination of Suface Tension by Drawing up Liquid Films")
- GLP compliance:
- yes
- Type of method:
- plate method
- Remarks:
- The Wilhelmy plate method was preferred because it allows a better assessment of the time dependence of the surface tension, if present.
- Key result
- Surface tension:
- >= 64.1 - <= 64.9 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.1 g/L
- Remarks on result:
- other: results based on two experiments
- Conclusions:
- The surface tension of the duplicate at 0.1 g/L solutions of test substance in water has been determined to range between 64.1 - 64.9 mN/m at 20.0 ± 0.2 °C.
- Executive summary:
The surface tension of the test substance has been determined using the Wilhelmy plate method in accordance with OECD TG 115 and in compliance with GLP. The surface tension of the duplicate at 0.1 g/L solutions of test substance in water has been determined in the range of 64.1 - 64.9 mN/m at 20.0 ± 0.2 °C.
Reference
Results of surface tension determinations of the substance
- At 0.1 g/L: Correction factor Ob = 72.75/ (σ water,exp) = 72.75/ 73.2 = 0.994
- Time dependence of surface tension observed: No
Description of key information
64.5 N/m at 20.0 ± 0.2 °C, OECD 115, Wilhelmy plate method, Ryser 1995.
Key value for chemical safety assessment
- Surface tension:
- 64.5
- in mN/m at 20°C and concentration in mg/L:
- 100
Additional information
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