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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Surface tension

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Description of key information

The corrected surface tension of an aqueous solution at 90% of IOA saturation (20.0 °C) is 73.1 mN/m (OECD 115).  IOA is not considered a surface active material.

Key value for chemical safety assessment

Additional information

The surface tension test of an aqueous solution of IOA was determined according to OECD TG 115 (harmonized ring method) and EEC Directive 92/69 EEC, A.5. Two overnight stirred, saturated solutions were diluted to 90% of saturation, and transferred to measurement vessels. Five measurements were made at 17-21 minutes to show equilibration. The arithmetic mean of the equilibrated values was calibrated against a water standard and corrected using Harkins-Jordan values. This study was conducted in accordance with OECD TG 115 and is compliant with GLP standards. Therefore this study is classified as reliable without restrictions.