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Physical & Chemical properties

Surface tension

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Endpoint:
surface tension
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because water solubility is below 1 mg/L at 20°C
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1993-07-09 to 1994-10-13
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
EEC 92/69
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
1981
Deviations:
no
GLP compliance:
yes
Type of method:
ring method
Specific details on test material used for the study:
Analytical purity: >= 99.65 %
Lot/batch No.: 93.166
Key result
Temp.:
20 °C
Conc.:
0.005 mg/L
Remarks on result:
not determinable because of methodological limitations

Water solubility of the test article was determined as lower than 0.24 mg/L (test A 6). Therefore, in agreement with EEC Directive 92/69, surface tension of aqueous solution of the test article was not determined as substances with a water solubility lower than 1 mg/L need not to be tested.

Conclusions:
Water solubility of the test article was determined as lower than 0.24 mg/L (test A 6). Therefore, in agreement with EEC Directive 92/69, surface tension of aqueous solution of the test article was not determined as substances with a water solubility lower than 1 mg/L need not to be tested.
Executive summary:

The surface tension is defined as the free enthalpy of the surface per unit area of surface. The surface tension is measured at the surface of a solution of the test article in water. The knowledge of the water solubility of the test article is a prerequisite to the performance of this test.

Water solubility of the test article was determined as lower than 0.24 mg/L (EU-Method A 6). Therefore, in agreement with EEC Directive 92/69, surface tension of aqueous solution of the test article was not determined as substances with a water solubility lower than 1 mg/L need not to be tested.

Description of key information

Water solubility of the test article was determined as lower than 0.24 mg/L (EU-Method A.6, Water solubility). Therefore, in agreement with EEC Directive 92/69, surface tension of aqueous solutions of the test article was not determined, as substances with a water solubility below 1 mg/L do not need to be tested.

Key value for chemical safety assessment

Additional information