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Physical & Chemical properties

Surface tension

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Description of key information

The CMC is determined to 3.5 mg/L at pH 7. The surface tension at 0.2 g/L is determined to 30 mN/m.

Key value for chemical safety assessment

Surface tension:
30
in mN/m at 20°C and concentration in mg/L:
200

Additional information

Read across. Structural similarities within the Primary Fatty Amine Ethoxylated (PFAEO) category (the substances have almost the same carbon chain distribution). Although the hydrogenated substance is more saturated, this will not have a significant effect on the micelle formation in this case. Furthermore, the molecular weights are in the same range and the distribution between primary, secondary and tertiary nitrogen is similar, that is, consist of tertiary nitrogen.