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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in water and sediment: simulation tests

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Description of key information

Key value for chemical safety assessment

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The simulation test on ultimate degradation in surface water and sediment simulation test study required in REACH guidance, Annex IX (Sections and do not need to be conducted as the substance is readily biodegradable. The chemical safety assessment also indicates that identification of degradation products (required in section 9.2.3) is not necessary. However, the simulation test of the substance could be determined based on available data for citric acid, since the substance will dissociate in aqueous solution to form the metal ion (K+) and citrate anion (H7C6O7-), exposure will be to the citrate and the metal ions separately.

A simulation in water and sediment test value of 93 ± 5 % has been determined for Citric acid in a test conducted according to OECD 303 A. The observed removal could be due to adsorption and/or degradation.