Registration Dossier

Administrative data

Endpoint:
surface tension
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion

Conclusions:
The substance has, based on QSAR, an extremely low water solubility well below 0.1mg/l, which is consistent with expectation based upon chemical structure. The substance therefore meets the criteria for data waiving and the study is considered not scientifically justified. The hydrophobic nature of the substance and the presence of the mineral oil is, however, likely to lead to micelle formation at the surface of water. It is hypothesised that the ionic sulphonate head will be attracted to water while the hydrophilic tail will tend to the oil, which may have the effect of forming an emulsion which may, in turn, lower the surface tension of the water phase.