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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 701-396-4 | CAS number: -
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:
- 08 Apr 2016
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- GLP guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- adopted in 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- adopted in 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- National Institute of Pharmacy and Nutrition, Budapest, Hungary
- Type of method:
- OECD harmonised ring method
- Key result
- Surface tension:
- ca. 42.4 mN/m
- Temp.:
- 20 °C
- Remarks on result:
- other: concentration was not accurately determined: 90% of the saturation solubility at 20 °C
Reference
Results
For the calculation of the surface tension of the test item, the mean of the measured surface tension values (see Table 1.) was corrected by the calibration factor and by the Harkins-Jordan correction (see Table 2.).
Table 1: Measured surface tension values and test conditions
|
Equilibrium time* [sec] |
Surface tension [mN/m] |
For the determination of equilibrium time Do not consider for the calculation of the surface tension |
300 |
42.4 |
320 |
42.9 |
|
340 |
43.9 |
|
360 |
44.2 |
|
420 |
44.1 |
|
480 |
44.1 |
|
|
420 |
44.1 |
|
420 |
44.1 |
|
420 |
44.0 |
|
420 |
44.0 |
|
420 |
44.0 |
Mean |
|
44.0 |
* time after transferring the solution to the vessel until measuring the surface tension of the solution
Table 2: Calculation of the surface tension of LZ 53478
Calibration factor (φa) |
1.0006 |
Surface tension values of LZ 53487 (σg) |
44.0 mN/m |
φa×σg |
44.1 mN/m |
Surface tension of aqueous solution of LZ 53478 after correction by Harkins-Jordan(interpolated value based on the guide REACH A.5) |
42.4 mN/m |
Conclusion
The surface tension of the aqueous solution of LZ 53478 is 42.4 mN/m.
As the surface tension value was below 60 mN/m, the test item is classified as surface active substance.
Description of key information
42.4 mN/m at 20.0 °C (OECD Guideline 115 (Surface Tension of Aqueous Solutions), EU Method A.5 (Surface Tension), OECD harmonised ring method)
As the surface tension value is below 60 mN/m, the test item is classified as surface active substance.
Key value for chemical safety assessment
- Surface tension:
- 42.4
Additional information
Concentration was not accurately determined: 90% of the saturation solubility at 20 °C.
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.
