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EC number: 200-539-3 | CAS number: 62-53-3
- 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
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
"Süß et al. (1978) examined in a laboratory experiment with four soil types the mineralisation of 14C-labelled aniline in a concentration of 1 mg/kg over 10 weeks. In the different soils between 16.2 and 26 .3% of the aniline was mineralised to 14CO2 after 10 weeks. The degradation maximum was already reached after 1 week. After 2 weeks 50% of the totally formed 14CO2 was found. Then the weekly degradation rates remained constant at ca. 1% until the end of the test. After extraction with water between 57.3 and 67.4% of the 14C activity could be detected in the four soils. Biodegradation in soil is impeded by the irreversible bonding of aniline to humic acids. Once those complexes are formed aniline is not accessible to degradation.
The study by Süß et al. (1978) can be used to derive a biodegradation half-life for the reaction product of aniline with humic acids. In this study it was shown that at beginning of the test aniline is degraded relatively rapidly. At this time free aniline is available in the soil. During the test aniline becomes covalently bound to humic acids and the degradation rate decreases significantly.
From the degradation rate of about 1% per week found after 2 weeks a half-life of 350 days can be extrapolated approximately. For the risk assessment it has to be considered that a certain degree of aniline in soil is accessible to biodegradation before irreversible binding occurs. It is therefore assumed that 20% of the aniline in soil is rapidly mineralised and the other 80% are covalently bound to the organic fraction. For this bound aniline the above derived half-life of 350 days is used."
Reference:
ECB (2004). European Union Risk Assessment Report, Aniline, CAS No: 62 -53 - 3, EINECS No: 200 -539 -3, 1st Priority List, Volume 50.
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