Registration Dossier
Registration Dossier
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EC number: 683-287-0 | CAS number: 877670-90-1
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
Test material
- Reference substance name:
- 2-(2-{1-[(2-methoxyphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl)benzoic acid
- EC Number:
- 683-287-0
- Cas Number:
- 877670-90-1
- Molecular formula:
- C18H17N3O5
- IUPAC Name:
- 2-(2-{1-[(2-methoxyphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl)benzoic acid
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- ca. 71.8 mN/m
- Temp.:
- 20 °C
- Conc.:
- 19.2 mg/L
Applicant's summary and conclusion
- Conclusions:
- The determination of the surface tension was carried out on the test item as supplied by the sponsor, with the use of a Krüss K6 Tensiometer by ring method. The measured value was found to be 71.8 mN/m.
As the surface tension value was higher than 60 mN/m, Anthranilic Acid-AAOA is not classified as surface active. - Executive summary:
In order to describe the time dependence of the surface tension after transferring the solution to the measurement vessel, repeated measurements were carried out with increasing the equilibrium time. A constant surface tension was reached after about 90 sec. The surface tension of Anthranilic Acid-AAOA aqueous solution read on the instrument was 71.6 mN/m at 20 °C using the ring method representing the mean of five separate measurements. The equilibrium time for these five measurements was in a range of 96 - 103 sec. The measured surface tension was multiplied by a and than corrected according to Harkins and Jordan by 0.01 mN/m, resulting in a corrected surface tension of 71.8 mN/m.
As the surface tension value was higher than 60 mN/m, Anthranilic Acid-AAOA is not classified as surface active.
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