Registration Dossier
Registration Dossier
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EC number: 605-546-9 | CAS number: 169280-10-8
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 10 June to 13 August 2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study according to international guidelines
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 002
- Report date:
- 2002
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
Test material
- Reference substance name:
- 4-(Cyclopropylcarbonyl)-α,α-dimethyl-ethyl ester benzeneacetic acid
- EC Number:
- 605-546-9
- Cas Number:
- 169280-10-8
- Molecular formula:
- C16 H20 O3
- IUPAC Name:
- 4-(Cyclopropylcarbonyl)-α,α-dimethyl-ethyl ester benzeneacetic acid
- Details on test material:
- Batch: W0147
Constituent 1
Results and discussion
Surface tensionopen allclose all
- Surface tension:
- >= 58.1 - <= 59.4 mN/m
- Temp.:
- 20.3 °C
- Conc.:
- 31 mg/L
- Remarks on result:
- other: Determination was performed at 90% of saturation (= the maximum water solubility). Values are means of six measurements in two separate series.
- Surface tension:
- >= 59.1 - <= 60.6 mN/m
- Temp.:
- 20.3 °C
- Conc.:
- 31 mg/L
- Remarks on result:
- other: Values after correction according to Harkins and Jordan.
Any other information on results incl. tables
The value for surface tension of purified water was 70.23 mN/m.
Applicant's summary and conclusion
- Conclusions:
- Considering a rounded average value of 60 mN/m, this value corresponds to the limiting value for regarding a substance as surface active. Therefore, p-cyclopropylketoester is not to be considered as surface active, although a > 90-% saturation may affect significantly the surface tension of the solution.
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