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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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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.