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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Description of key information

28.9 mN/m at 20±0.5°C and 3.1 g/L (OECD tG 115; RL1; GLP)

Key value for chemical safety assessment

Surface tension:
28.9
in mN/m at 20°C and concentration in mg/L:
3 100

Additional information

The surface tension of Undecylenamidopropyl Betaine was measured according to OECD Guideline 115 (1995) and EU method A.5 (2008) using the ring method.

The surface tension was determined to be 28.9 mN/m at 20±0.5°C and 3.1 g/L. The substance is regarded as surface active.