Registration Dossier
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EC number: 274-625-4 | CAS number: 70495-37-3
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:
- 2019-04-17 to 2019-04-17
- 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:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Key result
- Surface tension:
- 52.3 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1.08 g/L
- Conclusions:
- In a study according to OECD guideline 115 and EU Method A.5 a surface tension of 52.3 mN/m at 20 °C was determined for the test item. Thus, the test item is regarded as surface active material.
- Executive summary:
The surface tension of the test item was determined in a study according to OECD guideline 115 and Regulation EC No. 440/2008 Part A Method A.5. In this study a surface tension of 52.3 mN/m at 20°C was determined for the test item. According to EU Method A.5 the test item is regarded as surface active material.
Reference
Table 1: Measured surface tension values
Value No. |
1stMeasurement (4 min after preparing the solution) s [mN/m] |
2ndMeasurement (19 min after preparing the solution) s [mN/m] |
1 |
52.97 |
51.82 |
2 |
52.96 |
51.79 |
3 |
52.93 |
51.76 |
4 |
52.91 |
51.74 |
5 |
52.89 |
51.73 |
6 |
52.86 |
51.73 |
Mean value of the individual values |
52.92 ± 0.04 |
51.76 ± 0.04 |
Total mean value |
52.34 ± 0.6 |
|
The aqueous solution of the test item has a
mean surface tension of 52.3 mN/m. According to regulation EC No.
440/2008 Part A Method A.5 substances showing a surface tension lower
than 60 mN/m under the conditions of method A.5 should be regarded as
being surface active materials.
Thus, the test item is regarded as surface active material.
Description of key information
In a study according to OECD guideline 115 and EU Method A.5 a surface tension of 52.3 mN/m at 20 °C was determined for the test item. Thus, the test item is regarded as surface active material.
Key value for chemical safety assessment
- Surface tension:
- 52.92
- in mN/m at 20°C and concentration in mg/L:
- 1 080
Additional information
The surface tension of the test item was determined in a study according to OECD guideline 115 andRegulation EC No. 440/2008 Part A Method A.5. In this study a surface tension of 52.3 mN/m at 20°C was determined for the test item.According to EU Method A.5 the test item is regarded as surface active material.
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