Registration Dossier

Environmental fate & pathways

Hydrolysis

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

B-TEGME hydrolyses spontaneously after addition of water, at buffers 1.4, 4, 7 and 9.

Key value for chemical safety assessment

Half-life for hydrolysis:
1 d

Additional information

BASF 1999 investigated the hydrolysis of B-TEGME as a function of the pH and confirms the instability of B-TEGME in the environment: B-TEGME was added to 4 buffer solutions of pH 1.4, 4, 7 and 9. The IR spectrum of the solution, taken immediately after addition of water, showed a dramatic change, when compared with the IR spectrum of the original substance. This indicates spontaneous hydrolysis of B-TEGME.

It should be mentioned that in accordance with EC 1907/2006, Annex VIII, point 9.2.2.1, column 2, hydrolysis as a function of the pH is not required since B-TEGME is readily biodegradable, as shown in section 4.1.2.1.2.