Registration Dossier
Registration Dossier
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EC number: 204-853-1 | CAS number: 127-63-9
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
Diphenyl sulphone does not biodegrade in a simulation test with natural surface water, according to test guideline OECD 309.
Key value for chemical safety assessment
- Half-life in freshwater:
- 800 d
- at the temperature of:
- 12 °C
- Half-life in freshwater sediment:
- 140 d
Additional information
The objective of this study was to determine the degradation rate and degradation products of [14C]-
Diphenyl sulphone in a natural aerobic surface water in the dark, according to the OECD
309 testing guideline. Two different concentrations (10 μg/L and 95 μg/L) were applied per system.
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.
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