Registration Dossier
Registration Dossier
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EC number: 202-090-9 | CAS number: 91-68-9
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
Half life period of 3-diethylaminophenol in water was observed to be 38 days while in sediment it is 340 days.Based on these half life values it is concluded that 3-diethylaminophenol is readily biodegradable in water where as it is non biodegradable in sediment. The supporting study also shows half life of 3-diethylaminophenol in water and Sediment to be 900 hrs (37.5 days) and 8100 hrs (337.5 days) respectively
Key value for chemical safety assessment
- Half-life in freshwater:
- 38 d
- at the temperature of:
- 25 °C
- Half-life in freshwater sediment:
- 340 d
- at the temperature of:
- 25 °C
Additional information
Based on level III fugacity model the half life period of 3-diethylaminophenol was estimated. Half life period of 3-diethylaminophenol in water was observed to be 38 days while in sediment it is 340 days.Based on these half life values it is concluded that 3-diethylaminophenol is readily biodegradable in water where as it is non biodegradable in sediment. However, since there is no diffusion of the substance in the sediment as evident from the reported data (0% in sediment) and hence persistence in the sediment compartment is not likely to be critical. The supporting study also shows half life of 3-diethylaminophenol in water and Sediment to be 900 hrs (37.5 days) and 8100 hrs (337.5 days) respectively
Media |
Half-Life (days) |
Percent in |
Water |
38 |
17% |
Sediment |
340 |
0% |
Media |
Half life (hrs) |
Percent in medium |
Emission (kg/hr)
|
Water |
900 |
17.7%
|
1000 |
Sediment |
8100 |
0.363%
|
0 |
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