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EC number: 939-489-9 | CAS number: -
- 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
No experimental data available.
Key value for chemical safety assessment
Additional information
In accordance with Regulation (EC) No 1907/2006, Annex IX, Section 9.2, 9.2.1.3, Column 2, soil simulation testing does not need to be conducted as the chemical safety assessment according to Annex I indicates that there is no need to investigate further the degradation of the substance and its degradation products. The risk characterization ratios (RCRs) of the chemical safety assessment are below 1, indicating that the risks are acceptable.
In addition, the substance does not have a high potential for adsorption to soil. The log Kow is low (log Kow < 3; see IUCLID Ch. 4.7). The estimated adsorption coefficients for the charged and the uncharged molecule is also low (measured and estimated data; see IUCLID Ch. 5.4.1). Therefore, it is not considered necessary to conduct a soil simulation test and no biodegradation studies in soil will be provided.
The degradation products of the two constituents (CAS 13897 -55 -7 and 13897 -56 -8) of the substance (EC 939 -489 -9) were predicted using Catalogic v5.13.1.156 301C v11.15. The model predicted in total 133 metabolites for the two constituents 4-methylcyclohexane-1,3-diamine (CAS 13897-55-7: 86 metabolites) and 2-methylcyclohexane-1,3-diamine (CAS 13897-56-8: 47 metabolites). The majority of the substances is assessed to be readily biodegradable (n = 76) based on biological oxygen demand after 28 days (≥ 60% BOD/ThOD). None of the substances has a log Kow > 3, as the maximum log Kow of the substances is 1.27 (range: -6.1 to 1.27). In total 19 metabolites are to be regarded as relevant based on their estimated quantity (≥ 0.1%, approximately 0.001 mol/mol parent as estimated by the model). An overview on the relevant degradation products is shown in the endpoint summary of IUCLID Ch. 5.2.1. The complete list of metabolites is given in the endpoint study records of the model predictions for the two constituents.
Ten of the relevant degradation products are readily biodegradable. The log Kow of these predicted degradation products is clearly below the critical value of 3 (log Kow -5.0 to 1.3). Two of the metabolites are registered under REACH, but are not PBT/vPvB.
Therefore, it can be concluded that none of these degradation products is potentially PBT/vPvB.
In addition, it is expected that the reaction product of 2,4-Dinitrotoluene and 2,6-Dinitrotoluene and hydrogen is not biodegraded through growth linked processes based on the screening tests on biodegradability (IUCLILD Ch. 5.2.1).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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