Registration Dossier
Registration Dossier
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: 292-222-1 | CAS number: 90583-23-6
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:
- 27 Jan 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- no
- Type of method:
- ring method
- Surface tension:
- 31.5 mN/m
- Temp.:
- 20.5 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other: mean temperature of two measurements
Reference
Details:
Water calibration:
Water calibration: Temp. = 20 °C, density = 0.998 g/cm³
Surface tension of purified water [mN/m] |
|
Value 1 |
71.9 |
Value 2 |
72.0 |
Value 3 |
72.0 |
Value 4 |
72.1 |
Value 5 |
72.0 |
Arithmetic mean |
72.0 |
Standard deviation |
0.1 |
Arithmetic mean 72.0 mN/m, standard deviation 0.01 mN/m (theoretical value: 72.4 mN/m →correction factor 1.0056)
First test solution
(c = 0.957 g/L, Temp. = 21 °C, density = 0.998 g/cm³, age of solution = 42 min)
Surface tension of the solution [mN/m] |
|
Value 1 |
30.9 |
Value 2 |
30.9 |
Value 3 |
30.9 |
Value 4 |
30.9 |
Value 5 |
30.9 |
Arithmetic mean |
30.9 |
Standard deviation |
0.0 |
Arithmetic mean 30.9 mN/m, standard deviation 0.0 mN/m
Second test solution
(c = 1.03 g/L, Temp. = 20 °C, density = 0.998 g/cm³, age of solution = 60 min)
Surface tension of the solution [mN/m] |
|
Value 1 |
31.8 |
Value 2 |
31.8 |
Value 3 |
31.8 |
Value 4 |
31.8 |
Value 5 |
31.8 |
Arithmetic mean |
31.8 |
Standard deviation |
0.0 |
Arithmetic mean 31.8 mN/m, standard deviation 0.0 mN/m
By adjusting the temperature setting of the tensiometer, differences in the density of the liquid can be compensated automatically.
Arithmetic mean of two test solutions: 31.4 mN/m (+ 0.6 mN/m)
Arithmetic mean corrected by calibration factor
determined via water calibration: 31.5 mN/m
Description of key information
31.5 mN/m at 20.5 °C, concentration 1 g/L
Key value for chemical safety assessment
- Surface tension:
- 31.5
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The surface tension was determined by the ring method according to EU test method A.5. The substance is 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.
