Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

The biodegradation of DPS in water was determined in a 28 day-ready-biodegradability test with carbon dioxide evolution (OECD 301 B). The substance was biodegraded for 0-5%, hence the substance is not ready biodegradable under the standard test conditions.

The biodegradation of DPS was also determined in a standard simulation test in natural water (OECD 309) with [14C]-Diphenyl Sulphone. The degradation rate and degradation products were measured. Two different concentrations (10 μg/L and 95 μg/L) were applied.

The mineralisation rate was negligible. The DT50 values for [14C]-Diphenyl Sulphone were determined to be 800 days (10 μg/L) and 1210 days (95 μg/L) in the water phases. Therefore, [14C]-Diphenyl Sulphone is very persistent.  Only  very low amounts  were trapped as [14C]-CO2. (0.1% for 10µg/L, <LOQ for 95 µg/L).No degradation products were  measured.

A soil degradation study is not considered necessary because exposure of the soil is unlikely. Furthermore, the substance has a low adsorption potential, the biodegradation in water is low and no transformation products were found in the water simulation test. 


Additional information