Registration Dossier
Registration Dossier
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EC number: 204-885-6 | CAS number: 128-42-7
Endpoint summary
Administrative data
Description of key information
Additional information
Biodegradation in water :
The half life period of 4,4'-dinitrostilbene-2,2'-disulphonic acid in water is 60 days and based on this value it can be concluded that the chemical is persistent in water medium and will not easily bio-degrade. Also the diffusion percentage of 4,4'-dinitrostilbene-2,2'-disulphonic acid in water medium was observed to be 7%.
Media |
Half life (days) |
Percent in Medium |
Water |
60 |
7% |
Biodegradation in water and sediment :
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 |
Biodegradation in soil :
The PBT Profiler & EPI Suite has estimated that 4,4'-dinitrostilbene-2,2'-disulphonic acid is expected to be found predominantly in soil and its persistence estimate is based on its transformation in this medium. Its half-life in soil, 120 days., exceeds the threshold of being persistent in soil.Therefore, 4,4'-dinitrostilbene-2,2'-disulphonic acid is estimated to be persistent in the soil environment. The substance 4,4'-dinitrostilbene-2,2'-disulphonic acid diffuse to the extent of 82% in the soil medium.
PBT Profiler
Media |
Half life (days) |
Percent in Medium |
Soil |
120 |
82% |
Fugacity Model by EPI Suite estimation database
|
Mass Amount (percent) |
Half-Life (hr) |
Emissions (kg/hr) |
Soil |
81.9 |
2.88e+003 |
1000 |
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