Registration Dossier
Registration Dossier
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EC number: 201-612-2 | CAS number: 85-52-9
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 17 Dec 2018 to 07 Mar 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- March 04, 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- July 27, 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
- Specific details on test material used for the study:
- Appearance: Off-white powder
Purity/Composition: 98.8%
Test item storage: At room temperature - Key result
- Surface tension:
- 66.8 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 other: test item saturation solubility
- Conclusions:
- The OECD harmonized ring method was applied for the determination of the surface tension of 2-Benzoylbenzoic acid.
The surface tension of a test solution at 90% of the test item saturation solubility in water and at 20°C was 66.80 mN/m. According to this, the test item is considered not to be surface active. - Executive summary:
In this guideline (OECD 115) study conducted with GLP certification, the test material (EC 201-612-2) was determined to have a surface tension of 66.80 mN/m @ 20 °C at 90% of the test item saturation solubility in water. The test item is considered not to be surface active.
Reference
The results of the test on the determination of the surface tension of the test solution are given in Table 4. The individual measurements were obtained with a coefficient of variation of < 0.2 mN/m.
Table 4
Surface Tension of the Test Item
| Measurement | Time passed after measurement start [seconds] | Surface tension (mN/m) | |
| individual σ multiplied by Harkins-Jordan corrected value | mean σ multiplied by Harkins-Jordan corrected value | ||
| 1 | 40.26 | 66.81 | 66.80 |
| 2 | 66.95 | 66.8 | |
| 3 | 93.72 | 66.79 | |
| 4 | 120.29 | 66.79 | |
| 6 | 146.91 | 66.80 | |
Description of key information
Study conducted to recognised testing guidelines with GLP certification.
Key value for chemical safety assessment
Additional information
The surface tension of a test solution at 90% of the test item saturation solubility in water and at 20°C was 66.80 mN/m. According to this, the test item is considered not to be surface active.
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