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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 268-329-4 | CAS number: 68052-51-7
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 15 February 2017 to 14 July 2017
- 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:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- OECD harmonised ring method
- Key result
- Surface tension:
- 70.6 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension of an aqueous substance solution at 1 g/L was determined to be 70.6 mN/m (at 20°C).
- Executive summary:
Using the OECD harmonized ring method in a GLP study according to EC A.5 and OECD 115, the surface tension of an aqueous substance solution at 1 g/L was determined to be 70.6 mN/m (at 20°C). According to the EC A.5 guideline the substance is not surface active.
Reference
Table: Surface tension measurements
Measurement |
Time passed after transfer test solution to test vessel |
Surface tension [mN/m] |
||
individual |
mean (1) |
mean (2) |
||
1 |
15 |
67.6 |
|
|
2 |
16 |
68.8 |
70.7 |
70.6 |
3 |
17 |
69.5 |
|
|
4 |
18 |
70.6 |
|
|
5 |
19 |
70.7 |
|
|
6 |
20 |
70.9 |
|
|
7 |
21 |
70.6 |
|
|
8 |
22 |
70.7 |
|
|
(1) Mean calculated from measurements 4 to 8, after equilibrium was reached.
(2) Multiplied by the calibration factor and Harkins-Jordan corrected.
Description of key information
Surface tension at 20°C: 70.6 mN/m (EC A.5, OECD 115: OECD harmonised ring method)
Key value for chemical safety assessment
- Surface tension:
- 70.6
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
Not surface active
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.
