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EC number: 204-885-6 | CAS number: 128-42-7
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data

Endpoint summary
Administrative data
Description of key information
Additional information
Stability :
Phototransformation in air :
The atmospheric oxidation half-life of 4,4'-dinitrostilbene-2,2'-disulphonic acid was estimated using the level III multimedia model. It was estimated that the substance is not persistent in air medium as the half life period of 4,4'-dinitrostilbene-2,2'-disulphonic acid in air is only 0.071 days. This indicates that 4,4'-dinitrostilbene-2,2'-disulphonic acid is easily phototransformed in air.
Media |
Half life (days) |
Percent in Medium |
Air |
0.071 |
0% |
Hydrolysis :
The Hydrolysis rate constant of 4,4'-dinitrostilbene-2,2'-disulphonic acid is estimated to be 0.00000000000000025199999 (25.199999 E-17) cm3/molecule-sec. at half life of the 1.091 Hrs.The estimated half life of the substance indicates that the substance is rapidly hydrolysable.
sable.
Biodegradation
Biodegradation in Water : Screening test :
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 (60 days) 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 |
Bioaccumulation :
Bioaccumulation in Water and Sediment :
Bioaccumulation is the process by which the chemical concentration in an aquatic organism achieves a level that exceeds that in the water, as a result of chemical uptake through all possible routes of exposure. The relationship between bioaccumulation and bio-concentration is that, chemicals that have the potential to bioconcentrate also have the potential to bioaccumulate. Bioaccumulation is closely related to the Bioconcentration factor (BCF).
The estimated BCF of 4,4'-dinitrostilbene-2,2'-disulphonic acid in the key study was obtained to be 3.2. Supporting study also indicate the BCF to be 3.162. This low value of BCF of 4,4'-dinitrostilbene-2,2'-disulphonic acid indicates its non bioaccumulative nature as the BCF factor is less than the bio-concentration threshold of 1000.
Transport and distribution
Adsorption / desorption :
Soil Adsorption Coefficient i.e Koc value of 4,4'-dinitrostilbene-2,2'-disulphonic acid was estimated as 19770 L/kg (LogKoc= 4.2960) by means of MCI method. This indicates that 4,4'-dinitrostilbene-2,2'-disulphonic acid will strongly adsorb to the organic carbon fraction of the soil and will not have the tendency to move with the water content in the soil medium.The Koc value of the key study at 20 degC is equivalent to a value of 15816 (LogKoc= 4.1990).
Henry's Law constant :
Henry's Law states that at a constant temperature, the amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid. Henrys Law Constant of 4,4'-dinitrostilbene-2,2'-disulphonic acid at 25 deg C is 4.26E-017 (0.0000000000000000426) Pa m³/mol.
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