Registration Dossier
Registration Dossier
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EC number: 204-885-6 | CAS number: 128-42-7
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
Half life period of 4,4'-dinitrostilbene-2,2'-disulphonic acid in water observed 60days.(half-life) while in sediment it is 540 days.(half-life). Based on this half life values of 4,4'-dinitrostilbene-2,2'-disulphonic acid, it is concluded that the chemical is non biodegradable in water and sediment medium.
Key value for chemical safety assessment
- Half-life in freshwater:
- 60 d
- at the temperature of:
- 25 °C
- Half-life in freshwater sediment:
- 540 d
- at the temperature of:
- 25 °C
Additional information
Half life period of 4,4'-dinitrostilbene-2,2'-disulphonic acid in water observed 60days (half-life) while in sediment it is 540 days.(half-life).
The supporting study also indicates the half life of 4,4'-dinitrostilbene-2,2'-disulphonic acid in water and sediment to be 1440 hrs and 13000 hrs respectively.
Based on this half life values of 4,4'-dinitrostilbene-2,2'-disulphonic acid, it is concluded that the chemical is non biodegradable in water and sediment medium.
Media |
Half life (days) |
Percent in Medium |
Water |
60 |
7% |
sediment |
540 |
11% |
Media |
Half life (hrs) |
Percent in medium |
Emission (kg/hr)
|
Soil |
1440 |
7.22%
|
1000 |
Sediment |
13000 |
10.9%
|
0 |
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