Registration Dossier
Registration Dossier
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EC number: 939-579-8 | CAS number: -
Surface tension
Administrative data
Link to relevant study record(s)
Description of key information
The surface tension of a 1000 mg/L aqueous solution of Chimexane HB (lyophilized) was determined according to OECD Guideline 115 and Directive 92/69/EEC Method A.5, under GLP, during the determination of the critical micelle concentration (CMC). The determination was carried out in ten measurements with a tensiometer (ring method) at a temperature of 20.0°C.
The surface tension was to be 30.08 mN/m (standard deviation 0.1 mN/m).
Due to the fact that the surface tension is < 60 mN/m, the test item is classified as surface-active substance.
Key value for chemical safety assessment
- Surface tension:
- 30.08
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The surface tension of a 1 g/L aqueous solution of Chimexane HB (lyophilized) was determined according to OECD Guideline 115 and Directive 92/69/EEC Method A.5 , under GLP, during the determination of the critical micelle concentration (CMC) study. This surface tension was carried out in ten measurements with a tensiometer (ring method) at a temperature of 20.0°C.
The surface tension was to be 30.08 mN/m (standard deviation 0.1 mN/m).
Even if the purity of the lyophilised substance was not reported in the study report, the result of the surface tension was considered in a weight of evidence approach because the concentration to be considered (1g/L of chimexane HB lyophilized) is well above the critical micelle concentration of the substance (CMC = 158.4 mg/L).
The CHIMEXANE HB showing a surface tension lower than 60 mN/m under the conditions of this method, should be regarded as being surface-active material.
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