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Surface tension

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Description of key information

The surface tension of an aqueous solution of the test item PPDA was determined to be 72.24 ± 0.12 mN/m at 20.0 °C according to OECD Guideline 115. 

Key value for chemical safety assessment

Surface tension:
72.24
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information

The surface tension of an aqueous solution of the test item PPDA was determined to be 72.24 ± 0.12 mN/m at 20.0 °C according to OECD Guideline 115. One measurement was performed for verification purposes (after 61 minutes). No relevant changes and thus no dependency of surface tension on time were observed.

As all measured values were higher than 60 mN/m, PPDA was classified asnot surface active.