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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Log Kow (Kowwin estimate) : 3.30 
Estimated Koc: 307.2 L/kg

Key value for chemical safety assessment

Additional information

In the Key Study performed in 2012 at IPW-CM, using the 2012 EPISuite model (Report no. 2012 -0428 -DKB), the BTDA Koc was estimated at 307.2 L/Kg and the Log Kow was estimated at 3.30.

In the Supporting Study (Report no. 2012 -0426 -DKB): The substance BTDA will not dissociate in water. Therefore, estimation of log Koc in dependence of the pH is not possible. 

In the IPW-CM estimation calculation, the Koc is calculated using the following equation: 

logKoc= 0.554 x log P + 1.377 where the log P value was determined to be 1.72 (for the neutral form).

Log(Koc) for neutral form: 2.31 ± 1.00