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Physical & Chemical properties

Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
23 Mar 2017 (experimental starting date) - 07 Sep 2017 (experimental completiong date)
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Qualifier:
equivalent or similar to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
30 May 2008
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
27 July 1995
GLP compliance:
yes (incl. certificate)
Type of method:
ring method
Surface tension:
69.4 mN/m
Temp.:
21 °C
Conc.:
90 vol%
Sample 1         Sample 2
 Time (min) Reading (mN/m)    Temperature (°C)  Time (min)  Reading (mN/m) Temperature (°C) 
 1320  68.0  21.0  1460  69.0  21.0
 1329  69.5  21.0  1469  69.0  21.0
 1339  69.5  21.0  1478  69.5  21.0
 1348  69.0  21.0  1488  69.5  21.0
 1357  69.5  21.0  1498  69.5  21.0
 1367  69.5  21.0  -  -  -
Conclusions:
According to criteria mentioned 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 mean surface tension of duplicate 90 % saturation concentration solutions of test item in water has been determined to be 69.4 mN/m at 21.0 ± 0.5 °C. The test item was considered not to be surface-active.
Executive summary:

The mean surface tension of duplicate 90 % saturation concentration solutions of test item in water has been determined to be 69.4 mN/m at 21.0 ± 0.5 °C. The test item was considered not to be surface-active.

Description of key information

The mean surface tension of duplicate 90 % saturation concentration solutions of test item in water has been determined to be 69.4 mN/m at 21.0 ± 0.5 °C. The test item was considered not to be surface-active.

Key value for chemical safety assessment

Additional information