Registration Dossier
Registration Dossier
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EC number: 800-036-4 | CAS number: 1422423-64-0
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:
- March 16th, 2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1981
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- yes
- Remarks:
- temporary certificate
- Type of method:
- ring method
- Surface tension:
- 62.5 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Surface tension:
- 68.2 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.5 g/L
- Surface tension:
- 71.4 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.1 g/L
- Conclusions:
- Weak surface-active material.
- Executive summary:
The test was conducted according to the OECD Guideline 115 by menas of the ring method. According to the interpretation of the results suggested in the used method A.5 official method, the test item should be regarded as a weak surface-active material.
Reference
Surface tension values at 20 °C
| Measurements | Solution at 1 g/l (mN/m) |
Solution at 0.5 g/l (mN/m) |
Solution at 0.1 g/l (mN/m) |
| 1st | 58.4 | 63.6 | 67.3 |
| 2nd | 58.8 | 63.3 | 66.4 |
| 3rd | 58.9 | 63.1 | 65.2 |
| 4th | 58.0 | 62.8 | 65.8 |
| 5th | 57.6 | 63.2 | 64.2 |
| 6th | 58.2 | 63.4 | 66.3 |
| Average values (a) | 58.3 | 63.2 | 65.9 |
| S.D. | 0.4537 | 0.2461 | 0.9992 |
| C.V. % | 0. 78 % | 0.39 % | 1.52 % |
Surface tension at 20 °C; correction with water calibration factor
| Measurements | Average values (a) (mN/m) | f (water) calibration factor | Corrected walues (b) (mN/m) |
| Solution at 1 g/l (mN/m) | 58.3 | 1.0826 | 63.1 |
| Solution at 0.5 g/l (mN/m) |
63.2 | 1.0826 | 68.4 |
| Solution at 0.1 g/l (mN/m) |
65.9 | 1.0826 | 71.3 |
Description of key information
weak surface-active material
Key value for chemical safety assessment
- Surface tension:
- 62.5
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
EU method A.5.
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