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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Water solubility

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Administrative data

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Description of key information

Since the substance forms micelles in water, the water solubility is expressed as the critical micelle concentration (CMC), in this case 3.5 mg/L (pH 7, 23°C).

Key value for chemical safety assessment

Water solubility:
3.5 mg/L
at the temperature of:
23 °C

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.

According to "Guidance on information requirements and chemical safety assessment Chapter R.7a: Endpoint specific guidance", the critical micelle concentration (CMC) can be view as the solubility limit.