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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 log partition coefficient of ethanethiol is 1.5.

Key value for chemical safety assessment

Log Kow (Log Pow):
1.5
at the temperature of:
20 °C

Additional information

The key result, with a reported log Kow of 1.5, is taken from the WHO IPCS International Chemical Safety Card (ICSC 0470, 2004). No information on the primary source of these data or the methods used is available. However, this information is taken from an internationally peer-reviewed chemical safety card and can be considered reliable and suitable for use as the key study for this endpoint. The key study is supported by a predicted log Kow value of 1.27 (QSAR).