Registration Dossier
Registration Dossier
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EC number: 273-870-4 | CAS number: 69103-20-4
Surface tension
Administrative data
Link to relevant study record(s)
Description of key information
Surface Tension: > 60 mN/m at 20.0 ± 0.5 °C in 90% saturated solution; 59.4 mN/m in the presence of surface active by-products, EU Method A.5, Wil Research B.V. 2014
Key value for chemical safety assessment
Additional information
The surface tension was determined using the ring method of EU Method A.5 and OECD 115. Substances showing a surface tension lower than 60 mN/m under the conditions of this method, should be regarded as being surface active. The surface tension of a test solution at 90% of the test substance saturation solubility in water has been determined to be 59.4 mN/m at 20.0 ± 0.5 °C. However, it is concluded that under the conditions of this study, since the surface tension is determined in 90% saturated solution the substance (at 615 mg/l) should not be considered to be surface active. This is due to the presence of an epoxy group. This group may undergo hydrolysis in 90% saturated aqueous solution; forming trace quantities of corresponding surface active by-product(s) leading to false-positive surface tension measurement during the course of the study (surface tension: < 60 mN/m).
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