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Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

When release in water compartment:

N,N'-dithiodimorpholine is hydrolytically unstable. Its half-life is less than one day within a pH range of 4 to 9.

Ultimate biodegradation C02 evolution measurements on the DTDM showed a significant C02 evolutions (>25%) that corresponds to 76% biodegradation after 49 days. For DTDM an unusually long induction or acclimation period of 21 days was found before significant C02 evolution occurred.

As a consequence, DTDM can be considered as both inherently biodegradable and quickly hydrolysable and will not persist in the aquatic environment.

When release in soil and sediment compartments:

The partition coefficient of DTDM was assessed in a study (Gancet, 2010) performed in accordance with OECD testing guideline 117 and GLP requirements. The partition coefficient of DTDM was of 2.67 at 22°C and pH = 7.7.This value indicates that DTDM is characterized by a low potential of adsorption. As a consequence, DTDM would not persist in the soil and sediment compartments because it is not expected to adsorb on soils and sediments.

Bioaccumation potential

The partition coefficient of DTDM was assessed in a study (Gancet, 2010) performed in accordance with OECD testing guideline 117 and GLP requirements. The partition coefficient of DTDM was of 2.67 at 22°C and pH = 7.7.This value indicates that DTDM bioaccumulation is not expected.