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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 partition coefficient (n-octanol/water) (log Pow) of the substance at 25 °C was determined to be <-3.48 by using the shake flask method in accordance with EC A.8 and OECD 107 guidelines. 

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
25 °C

Additional information

Key value for CSA: log Pow < -3.48 at 25 °C. pH of the aqueous layer: 5.21 - 5.78. The same value will be used for the guanidine part of the salt in the preparation of the CSA for guanidinium phosphate.