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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The log Kow is 3.3

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
25 °C

Additional information

The log Kow of the substance (BTDA) was estimated by EPIWIN 4.0 Suite as 3.2987, and calculated by ACD Labs software to be 1.72.

The log Kow of of the hydrolysis product of BTDA (benzophenone tetracarboxylic acid, or BTA) was also predicted by EPIWIN 4.0; the log Kow was estimated to be 1.30.