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EC number: 212-344-0 | CAS number: 793-24-8
- 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
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Experimental testing is not applicable as the substance is hydrolytically unstable (half-life is 8 h at 26°C).
However, the calculated low Koc values from 6PPD are useful for the calculation of PNECs using the equilibrium partition method.
Key value for chemical safety assessment
- Koc at 20 °C:
- 2 818
Other adsorption coefficients
- Type:
- other: logKow using MCI method
- Value in L/kg:
- 4.36
Additional information
N-(1,3-dimethylbutyl) -N'-phenylbenzene-1,4-diamine.For assessment, the values LogKoc 3.45 (logKow method) and 4.36 (MCI metode)were taken (Currenta, 2014a). It has to be taken into account, that the substance is hydrolytically unstable (half-life 8 h). The lower of the two values was taken for assessment as it yields the higher PNEC sediment when using the equilibrium partition method (worst case).
4-Hydroxydiphenylamine (CAS 122-37-2)and 1,3-dimethylbutylamine (CAS 108-09-8) were identified as the primary hydrolysis product.
The estimated Log Koc values for 4-hydroxydiphenylamine, using different accepted calculation methods are 3.03 (MCI method), and 2.41 (logKow method) (Currenta, 2014b)
The physico-chemical properties of 4-hydroxydiphenylamine are different especially concerning the Koc value, it should be taken into account that this metabolite has a different behaviour in the environment.
Amine data: The estimated Log Koc values for 1,3-Dimethylbutylamine (CAS 108-09-8), using different accepted calculation methods are 1.83 (logKow method) and 2.02 (MCI method (Currenta, 2014c)
[LogKoc: 3.45]
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