Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Key value for chemical safety assessment

Log Kow (Log Pow):
-0.16

Additional information

The partition coefficient (log Pow) data available are both for hydrazine, a read-across substance. The key study, reports a log Pow of -0.16. This value was derived using OECD Guideline 107. The other supporting study entered into the dossier reports a log Pow value for hydrazine of -2.07, however, there are less data about its derivation. As a result the log Pow of 0.16 has been used in the risk characterisation exercise.