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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Vapour pressure

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Description of key information

The vapour pressure of  1H-imidazolium, 1-ethyl-3-methyl-, acetate is < 0.000001 hPa at 20°C

Key value for chemical safety assessment

Additional information

Two GLP studies were conducted. BASF GLP study no. 10L00259 in accordance with the OECD Guideline for the Testing of Chemicals 104: "Vapour pressure" by effusion method, weight loss and BASF study no. 2007.203 equivalent or similar to

the OECD Guideline for the Testing of Chemicals 104: "Vapour pressure" by effusion method.

BASF GLP study no. 10L00259 determined the vapour pressure to be < 0.000001 hPa at 20 °C and BASF study no. 2007.203 determined the vapour pressure also to be < 0.000001 at 20 °C. Both values are in the same range and regarded to be reliable for 1H-imidazolium, 1-ethyl-3-methyl-, acetate.

The value of the recent study (10L00259) was chosen as key value.