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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Physical & Chemical properties

Partition coefficient

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Description of key information

The partition coefficient of  1H-imidazolium, 1-ethyl-3-methyl-, acetate is as follows:
-2.5 at 23°C, determined via 1-ethyl-3-methylimidazolium
-2.0 at 23°C, determined via acetate
both at pH = 6.4

Key value for chemical safety assessment

Log Kow (Log Pow):
-2
at the temperature of:
23 °C

Additional information

A GLP study was conducted in accordance with the OECD Guideline for the Testing of Chemicals 107, shake flask method .

The partition coefficient was determined via 1-ethyl-3-methylimidazolium and via acetate. The result is as follows:

-2.5 at 23°C, determined via 1-ethyl-3-methylimidazolium

-2.0 at 23°C, determined via acetate both at pH = 6.4 (mean of all pH values of the water phases).

This result is regarded to be reliable for 1H-imidazolium, 1-ethyl-3-methyl-, acetate.