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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Phototransformation in water

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Administrative data

Link to relevant study record(s)

Description of key information

In the key study 2,4 -TDA exhibits an environmental direct photolysis half-life equal or higher than 1 year.

Key value for chemical safety assessment

Additional information

Available data on phototransformation in water

Four experimental results are reported for this endpoint. Among them, three experimental results were quoted by a reliability (3).

Phototransformation of 2,4-TDA in water

One study was quoted by a reliability (2) and selected as key study.

Under the experimental conditions of the photodegradtaion study performed on 2,4 -TDA, a quantum yield (phi) of 0.0027

and an environmental direct photolysis half-life equal or higher than 1 year were determined.