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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:
1982
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
other: EEC Directive 79/831, 3.5
Deviations:
yes
Remarks:
- the rings are heated on a Bunsen burner with city gas instead of a methanol flame
GLP compliance:
yes
Type of method:
ring method
Surface tension:
60 mN/m
Temp.:
20 °C
Conc.:
10 g/L
Remarks on result:
other: Mean values of 5 measurements

The test substance is only very slightly soluble in water.The solution measured in this experiment is thus the filtrate of a 1g/100mL slurry of test substance.

Conclusions:
The surface tension of test substance was determined to be 60.0 mN/m at 20°C, filtrates of a 1g/100mL slurry

Description of key information

The study provided was conducted to recognised testing guidelines and with GLP certification.

Key value for chemical safety assessment

Surface tension:
60
in mN/m at 20°C and concentration in mg/L:
10 000

Additional information

Based on the criteria as outlined in the OECD Guideline it is concluded that the test substance should not be regarded as being surface-active material.