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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: According to international guideline(s), GLP-compliant, performed in recognized contract research organization, no restrictions, fully adequate for assessment.
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
OECD harmonised ring method
Key result
Surface tension:
45.7 mN/m
Temp.:
20 °C
Conc.:
90 other: % saturated aqueous solution

Equilibrium time* (sec)

Surface tension (mN/m)

260

47.0

270

47.2

260

47.2

260

47.2

260

47.2

Mean

47.2

Harkins-Jordan* corrected value

45.7

* time after transferring the solution to the vessel until measuring the surface tension of the solution

Conclusions:
The test substance is considered to be surface active (surface tension <60 mN/m).

Description of key information

45.7 mN/m (90% satuarated aqueous solution at 20°C) (OECD 115, EC A.5)

Key value for chemical safety assessment

Surface tension:
45.7

Additional information

Value determined in 90% saturated aqueous solution.