Registration Dossier
Registration Dossier
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EC number: 263-038-9 | CAS number: 61789-18-2
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:
- From 24 April, 2008 to 25 April, 2008
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Key result
- Surface tension:
- 24.04 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other: Standard deviation: 0.05%
- Executive summary:
A study was conducted to determine the surface tension and critical micelle concentration of the test substance, TMAC C (99.6% active), according to OECD 115 and EU A.5 Guidelines, in compliance with GLP. 1 g/L (total volume 200 mL), prepared in HPLC water, was used to determine the surface tension in 10 measurements with a tensiometer. Different concentrations of the test substance in the range of 0.05 to 10 g/L (total volume 200 mL), prepared in HPLC water, were applied for the determination of critical micelle concentration at a temperature of 20°C. Under the study conditions, the surface tension and the CMC of the test substance were determined to be 24.04 +/- 0.05 mN/m and 1 g/L respectively (Bodsch, 2008).
Reference
Surface tension of the test substance at different concentrations:
Concentration (g/L) |
Surface tension (mN/m) |
Mean temperature (⁰C) |
0.05 |
45.52 |
19.9 |
0.20 |
31.81 |
20 |
0.35 |
30.29 |
19.9 |
0.50 |
24.60 |
20 |
0.75 |
24.13 |
20 |
1 |
24.04 |
20 |
5 |
31.88 |
19.7 |
10 |
33.98 |
19.9 |
Description of key information
Under the study conditions, the surface tension and the CMC of the test substance were determined to be 24.04 +/- 0.05 mN/m and 1 g/L respectively.
Key value for chemical safety assessment
- Surface tension:
- 24.04
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The surface tension was determined according to OECD Guideline 115 and EU Method A.5 (Bodsch, 2008).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
