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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:
from 2011-04-04 to 2011-05-30
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
31 May 2008
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
27 July 1995
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
plate method
Specific details on test material used for the study:
- Batch no.: 10191-AKm
- Purity. 100.5 % (aldimine titration)
- Expiry date: 2013-06-16
Key result
Surface tension:
60.14 mN/m
Temp.:
20 °C
Conc.:
1 g/L
Surface tension:
60.95 mN/m
Temp.:
20 °C
Conc.:
1 g/L
Conclusions:
The surface tension of an aqueous solution of SIKA Hardener MH was determined in two measurements. Both measurements revealed values higher than 60 mN/m. Therefore, SIKA Hardener MH was classified as not surface active.
Executive summary:

The determination of the surface tension of an aqueous solution of Sika Hardener MH was performed according to OECD Guideline 115 resp. EU Method A.5. The surface tension of an aqueous solution of the test item Sika Hardener MH was determined as 60.14 ± 0.57 mN/m at 20 ± 0.3 °C. One measurement was performed for verification (after 69 minutes), resulting in a value of 60.95 ± 0.13 mN/m. No significant changes and thus no significant dependence on time were observed. As both values were higher than 60 mN/m, Sika Hardener MH was classified as not surface active. The surface tension of the negative control lay within the accepted range.

 

Description of key information

The surface tension of an aqueous solution of SIKA Hardener MH was determined in two measurements. Both measurements revealed values higher than 60 mN/m. Therefore, SIKA Hardener MH was classified as not surface active.

Key value for chemical safety assessment

Surface tension:
60.14
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information

The determination of the surface tension of an aqueous solution of Sika Hardener MH was performed according to OECD Guideline 115 resp. EU Method A.5. The surface tension of an aqueous solution of the test item Sika Hardener MH was determined as 60.14 ± 0.57 mN/m at 20 ± 0.3 °C. One measurement was performed for verification (after 69 minutes), resulting in a value of 60.95 ± 0.13 mN/m. No significant changes and thus no significant dependence on time were observed. As both values were higher than 60 mN/m, Sika Hardener MH was classified as not surface active. The surface tension of the negative control lay within the accepted range.