Registration Dossier
Registration Dossier
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EC number: 412-540-8 | CAS number: 22471-55-2 ET 344 SP
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- yes
- Remarks:
- The surface tension result was not corrected using the correction table. This deviation has been considered not to have affected the integrity of the study.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Key result
- Surface tension:
- 69.6 mN/m
- Temp.:
- 25 °C
- Conc.:
- 16.1 mg/L
- Conclusions:
- The surface tension of a 1.61 x 10^-2 g/ l solution of ET-344 SP has been determined to be 69.6 mN/m at 25.0 +/- 0.5°C.
- Executive summary:
Guideline: EU A.5 (ring method)
The surface tension of a 1.61 x 10^-2 g/ l solution of ET-344 SP has been determined to be 69.6 mN/m at 25.0 +/- 0.5°C.
Reference
The peak areas relating to the standard and sample solutions are detailed below:
Solution |
Peak Area (units) |
Standard 100 mg/L |
4.083 x 105 |
Standard 101 mg/L |
4.139 x 105 |
Sample A |
2.630 x 105 |
Sample solution concentration = 1.61 x 10-2 g/l.
Calibration: Mean calibration factor = 1.001
Sample solution:
Time (mins) |
Reading (mN/m) |
Temperature (degrees C) |
67 |
69.2 |
25.0 |
83 |
69.3 |
25.0 |
93 |
69.5 |
25.0 |
102 |
69.6 |
25.0 |
111 |
69.6 |
25.0 |
121 |
69.6 |
25.0 |
129 |
69.7 |
25.0 |
138 |
69.7 |
25.0 |
Mean reading = 69.5 mN/m.
Surface tension = reading x calibration factor
= 69.5 x 1.001
= 69.6 mN/m.
Description of key information
Guideline: EU A.5 (ring method)
The surface tension of a 1.61 x 10^-2 g/ l solution of ET-344 SP has been determined to be 69.6 mN/m at 25.0 +/- 0.5°C.
Key value for chemical safety assessment
- Surface tension:
- 69.6
- in mN/m at 20°C and concentration in mg/L:
- 16.1
Additional information
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