Registration Dossier
Registration Dossier
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EC number: 271-533-6 | CAS number: 68584-26-9 This substance is identified by SDA Substance Name: C10-C16 alkyl benzene sulfonic acid magnesium salt and SDA Reporting Number: 15-081-07.
Surface tension
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.
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