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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

A calculation based on the measured solubilities in water and octanol could not be performed in absence of conclusive data on water solubility (Laus 2014).

Key value for chemical safety assessment

Log Kow (Log Pow):
6.4

Additional information

As it was not possible to use the HPLC or the stirring method to assess the logPow of the test substance, a calculation based on solubilities in octanol and water was chosen as alternative. As it was not possible to assess the water solubility, no value for logPow could be derived. Therefore the logPow of NaDNNSA is calculated from its solubility in octanol (528.3 g/L) and the water solubility estimate based on the experimental value from DNNSA, leading to a logPow of 6.4.