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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Partition coefficient

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Administrative data

Link to relevant study record(s)

Description of key information

The Pow was calculation as the ratio between the test substance solubility in octanol (499.9 g/L) (section 4.9) and the Critical Micelle Concentration (22.1 mg/L) /section 4.10): Pow=499,900 mg/L/22.2 mg/L = 22600 =>logPow=4.35       

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
20 °C

Additional information

Due to its composition and because it is surface active, the partition coefficient n-octanol/water (Pow) of the test item can only be estimated from the single solubilities in n-octanol and in water. However, as the substance forms micelles in water, the Critical Micelle Concentration (CMC) was used for a measure for the true water solubility.