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Physical & Chemical properties

Surface tension

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surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
23 August to 29 October 2013
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.5 (Surface Tension)
according to guideline
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
GLP compliance:
yes (incl. QA statement)
Type of method:
ring method
Specific details on test material used for the study:
Test Item Code: 2012-004738
Batch / Lot number: SZB9174XV
Active ingredient: Captan
Content of a.i. (analysed): 99.6 % (w/w)
Appearance / Colour: White powder
Certificate of Analysis: 21 March 2011
Expiry date: 23 June 2016
Storage conditions: Ambient temp., dark, dry
Key result
Surface tension:
63 mN/m
20 °C
90 vol%
In the described surface tension test under the experimental conditions the results showed a surface tension > 60 mN/m. Therefore the test item has to
be regarded to be not surface active.
Executive summary:

The surface tension of Captan was determined according to EC method A.5 and OECD 115.
The mean surface tension of a 90 % saturated aqueous solution of Captan was determined as 63 mN/m at 20 °C.
The results showed a surface tension > 60 mN/m. Therefore the test item has to be regarded to be not surface active.

Description of key information

The endpoint for surface tension is reported to be 63 mN/m at 20°C.

Key value for chemical safety assessment

Surface tension:
in mN/m at 20°C and concentration in mg/L:
1 050

Additional information