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Physical & Chemical properties

Surface tension

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Description of key information

Surface tension was determined to be 66.5 ± 2.0 mN/m for the 0.11 g/L loading rate and 56.2 ± 1.0 mN/m for the 1.1 g/L loading rate at 22.0 ± 0.5°C. The test item was considered to be surface active but this was dependent on loading rate (OECD 115 and EU Method A.5).

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GUIDELINE

Surface tension was investigated using a ring method designed to be compatible with Method A.5 Surface Tension of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 115 of the oECD Guidelines for Testing of Chemicals, 27 July 1995.

METHOD

The surface tension of nominally 90 % saturated solutions was determined using two loading rates (0.11 and 1.1 g/L) at 22.0 ± 0.5°C.

RESULTS

Surface tension was determined to be 66.5 ± 2.0 mN/m for the 0.11 g/L loading rate and 56.2 ± 1.0 mN/m for the 1.1 g/L loading rate at 22.0 ± 0.5°C.

CONCLUSION

The test item was considered to be surface active but this was dependent on loading rate.