Registration Dossier
Registration Dossier
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EC number: 701-212-2 | CAS number: -
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Jan 19 - 27 March 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- not specified
- Type of method:
- plate method
Test material
- Reference substance name:
- Fatty acids, C16-18 (even numbered) and C18 (unsaturated) (9Z)-octadec-9-enyl esters.
- EC Number:
- 701-212-2
- Cas Number:
- 869110-10-1
- Molecular formula:
- R1, R2, R3: C15-, C17- saturated, C17- unsaturated alkyl chains
- IUPAC Name:
- Fatty acids, C16-18 (even numbered) and C18 (unsaturated) (9Z)-octadec-9-enyl esters.
1
- Specific details on test material used for the study:
- Batch number: XP3687
Results and discussion
Surface tension
- Key result
- Surface tension:
- > 55.9 - < 68.4 mN/m
- Temp.:
- 25 °C
- Conc.:
- 193 mg/L
- Remarks on result:
- other: conc. <193 mg/L
- Remarks:
- Mean value: 58.5 mN/m
Any other information on results incl. tables
Significantly variability was observed between the four values obtained indicating possible homogenity issues with the test item. The variability observed is not typical of this procedure, suggesting the possibility that, although clear solutions were visually observed, undissolved test item may still be present that are affecting the accuracy of the measurements. The results obtained suggest that the test item may be surface active, howeer this is not expected given consideration of the structure of the test item and similar substances have not behaved in the same manner, indicating that the results obtained may be affected by the physical nature of the test item and therefore, it is not clear from the results obtained as to whether significant surface activity is a property of the test item.
Applicant's summary and conclusion
- Conclusions:
- Surface tension of the registered substance at 25 oC is 58.5 mM/m (mean value of tests). at 90% saturation. it is not clear from the results obtained as to whether significant surface activity is a property of the test item.
- Executive summary:
Surface tension of the registered substance at 25 oC is 58.5 mM/m (mean value of tests). at 90% saturation.
it is not clear from the results obtained as to whether significant surface activity is a property of the test item.
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