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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 482-280-8 | 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:
- 13 April 2018 - 24 May 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Key result
- Surface tension:
- 50 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 other: % saturation
- Conclusions:
- The surface tension of the test item at nominally 90% saturation in water was determined to be 50.0 ±0.5 mN/m at 20 °C. The test item was considered to be surface active.
- Executive summary:
The surface tension of the test item was determined using the ring method designed to be compatible with EC Method A.5 and OECD Method 115. The surface tension of the test item at nominally 90% saturation in water was determined to be 50.0 ±0.5 mN/m at 20 °C. The test item was considered to be surface active.
Reference
Table 1: Sample 1
Age of Solution (min) |
Reading (mN/m) |
Temperature (°C) |
135 |
49.0 |
20.0 |
145 |
50.0 |
20.0 |
155 |
50.0 |
20.0 |
166 |
50.5 |
20.0 |
177 |
50.5 |
20.0 |
188 |
50.5 |
20.0 |
Table 2: Sample 2
Age of Solution (min) |
Reading (mN/m) |
Temperature (°C) |
203 |
49.5 |
20.0 |
213 |
49.5 |
20.0 |
223 |
50.0 |
20.0 |
233 |
50.0 |
20.0 |
243 |
50.0 |
20.0 |
The mean results were based on the last five readings that had reached a plateau.
Mean Sample 1 result: 50.3 mN/m
Mean Sample 2 result: 49.8 mN/m
pH of Sample 1: 5.9
pH of Sample 2: 5.6
Overall result: 50.0 ±0.5 mN/m
Overall temperature: 20.0 ±0.5 °C
According to criteria stated in EC Method A.5, substances showing a surface tension lower than 60 mN/m under the conditions of this method should be regarded as being surface active. The test item was therefore considered to be surface active.
Description of key information
The surface tension of the test item at nominally 90% saturation in water was determined to be 50.0 ±0.5 mN/m at 20 °C.
Key value for chemical safety assessment
- Surface tension:
- 50
Additional information
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.
