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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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In accordance with Annex IX, 9.2.1.2, column 2, simulation testing on ultimate degradation in surface water does not need to be conducted if the substance is highly insoluble in water. The water solubility of 1,2-Benzenedicarboxylic acid, di-C16-18-alkyl esters (CAS 90193-76-3) is < 0.05 mg/L and therefore, further testing in the water phase is not deemed necessary. No studies investigating the biodegradation of the substance in sediment are available. The results from the ready biodegradability test (51.5% after 28 days) show that a certain degree of biodegradation of this substance in the environment can be expected.