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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

Description of key information

Significant accumulation in organisms is not to be expected.

Key value for chemical safety assessment

Additional information

In contact with water, the tetrahydrofuran - boron trifluoride complex rapidly decomposes to tetrahydrofuran and boron trifluoride. Based on the log Kow of tetrahydrofuran (0.45), bioaccumulation is not expected, and according to annex IX of Regulation (EC) No. 1907/2006 a study need not be conducted. Boron trifluoride dihydrate further hydrolyses, forming an acidic reactive mixture of boric acid, hydroxyfluoroboric acids, hydrofluoric acid, tetrafluoroboric acid and, depending on the pH value, the corresponding anions are produced. The hydrolysis products are all ionic species characterized by a low potential for bioaccumulation.