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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)
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
GLP compliance:
yes (incl. certificate)
Type of method:
ring method
Key result
Surface tension:
63.5 mN/m
Temp.:
19.8 °C
Remarks on result:
other: Surface tension of aqueous solution of WS400402 after correction by Harkins-Jordan
Conclusions:
The surface tension of the aqueous solution of WS400402 is 63.5 mN/m.
As the surface tension value was higher than 60 mN/m, WS400402 is not classified as surface active substance.

Description of key information

Commission Regulation (EC) No. 440/2008 (2008) Method A.5; OECD guideline No. 115

Method: ring method

Result: The surface tension of the aqueous solution of WS400402 is 63.5 mN/m.

Key value for chemical safety assessment

Surface tension:
63.5
in mN/m at 20°C and concentration in mg/L:
1 000.4

Additional information

As the surface tension value was higher than 60 mN/m, WS400402 is not classified as surface active substance.