Registration Dossier
Registration Dossier
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EC number: 221-487-8 | CAS number: 3115-68-2
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:
- 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- In accordance with test guidelines EC A.5 and OECD 115.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- (1995)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Qualifier:
- according to guideline
- Guideline:
- other: ISO Standard 304-1985; Surface active agents - Determination of surface tension by drawing up liquid films
- GLP compliance:
- no
- Type of method:
- ring method
- Surface tension:
- 68.7 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- Using the ring method, the surface tension of a 1 g/L aqueous test substance solution at 20°C has been determined as 68.7 mN/m. The substance is not surface active according to the criterium in the EC A.5 guideline.
Reference
Table: Surface tension measurements
| Surface Tension of test solution #1 (mN/m) | Surface Tension of test solution #2 (mN/m) | Equilibrium Time from time of preparation |
| 69.9 | 67.4 | 4 hours |
| 69.9 | 67.4 | 5 hours |
Description of key information
Surface tension at 20°C and 1 g/L: 68.7 mN/m (EC A.5 and OECD 115: ring method)
Key value for chemical safety assessment
- Surface tension:
- 68.7
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The substance is not surface active according to the criterium in the EC A.5 guideline.
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