Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 278-169-7 | CAS number: 75277-39-3
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:
- 2015-11-03
- 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
- Type of method:
- OECD harmonised ring method
- Key result
- Surface tension:
- ca. 63.3 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1.001 g/L
- Conclusions:
- The mean surface tension was determined to be 63.3 mN/m.
- Executive summary:
The surface tension of the registered substance was determined in an experimental study under GLP conditions according to OECD Test Guideline 115 using the harmonised OECD ring method. The experiment was performed at 20 °C with a concentration of 1.001 g/L of the test item. The surface tension was determined at five time points (4:15 to 5:15 after stirring (4 h) and filtering (0.20 µm) at intervals of 15 seconds). The mean surface tension was 63.3 mN/m (standard deviation 0.092). The test substance is considered as not surface active, as its surface tension is > 60 mN/m.
Reference
C was calculated as 1.028 (from the four water tensiometer readings (mN/m): 70.7, 70.7, 70.8, 70.8).
The surface tension was determined at the five time points, with a mean of 63.3 mN/m and a standard deviation of 0.092.
time point | tensiometer reading (mN/m) | experimental value EV (mN/m) | surface tension (mN/m) |
4:15 | 62.0 | 63.8 | 63.1 |
4:30 | 62.1 | 63.9 | 63.2 |
4:45 | 62.2 | 64.0 | 63.4 |
5:00 | 62.1 | 63.9 | 63.2 |
5:15 | 62.2 | 64.0 | 63.4 |
Description of key information
The mean surface tension was determined to be 63.3 mN/m (reference 4.10-1).
Key value for chemical safety assessment
- Surface tension:
- 63.3
- in mN/m at 20°C and concentration in mg/L:
- 1 001
Additional information
The surface tension of the registered substance was determined in an experimental study under GLP conditions according to OECD Test Guideline 115 using the harmonised OECD ring method. The experiment was performed at 20 °C with a concentration of 1.001 g/L of the test item. The surface tension was determined at five time points (4:15 to 5:15 after stirring (4 h) and filtering (0.20 µm) at intervals of 15 seconds). The mean surface tension was 63.3 mN/m (standard deviation 0.092). The test substance is considered as not surface active, as its surface tension is > 60 mN/m.
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.
