Registration Dossier
Registration Dossier
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EC number: 215-662-8 | CAS number: 1338-24-5
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM D 1331
- GLP compliance:
- no
- Type of method:
- ring method
- Surface tension:
- ca. 31.8 mN/m
- Temp.:
- 23 °C
- Remarks on result:
- other: No concentration value is specified
- Conclusions:
- The surface tension of naphthenic acids is about 31.8 mN/m
Reference
| Surface Tension (mN/m) | |||
| Measuerment number | Essay 1 | Essay 2 | Essay 3 |
| 1 | 31.9 | 31.9 | 31.9 |
| 2 | 31.8 | 31.8 | 31.8 |
| 3 | 31.8 | 31.8 | 31.8 |
| 4 | 31.8 | 31.8 | 31.8 |
| 5 | 31.8 | 31.8 | 31.8 |
| 6 | 31.8 | 31.8 | 31.8 |
| 7 | 31.8 | 31.8 | 31.8 |
| 8 | 31.8 | 31.8 | 31.8 |
| 9 | 31.8 | 31.8 | 31.8 |
| 10 | 31.8 | 31.8 | 31.8 |
| Average | 31.8 | 31.8 | 31.8 |
| Average | 31.8 | ||
Description of key information
The surface tension of a batch of naphthenic acids is measured in an experimental study (Dussart, 2012) assigned as key study and considered reliable without restrictions (K1) using the ASTM D 1331 method and has a value of 38.1 mN/m.
Key value for chemical safety assessment
- Surface tension:
- 31.8
Additional information
The temperature at which the test was performed is 23 +/- 2°C.
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