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Diss Factsheets
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EC number: 221-374-3 | CAS number: 3081-01-4
- 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
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Endpoint summary
Administrative data
Description of key information
Additional information
7PPD has a relatively high Koc value of 11480 (calculated). As the hydrolyis occurs fast (half-life 5.15h) also the hydrolysis product(s) are taken into account. For 4 -Hydroxydiphenylamine, the Koc was calculated to be 398.
The distribution of the parent compound and the two hydrolysis products 4 -hydroxydiphenylamin and N-Phenyl-p-benzoquinone monoimine was calculated using the Mackay distribution model:
Compartment | 7PPD | 4-hydroxydiphenylamine |
N-phenyl-p-benzoquinone monoimine |
Air (%) | 0.17 | 0.16 | 0.09 |
Water (%) | 4.06 | 95.87 | 99.2 |
Soil (%) | 47.43 | 2.19 | 0.39 |
Sediment (%) | 47.95 | 1.77 | 0.32 |
Suspended sediment (%) | 0.3 | 0.014 | 0.003 |
Biota (%) | 0.03 | 0.001 | 0.0002 |
Aerosol (%) | 0.06 | 0.001 | 0.0001 |
The model indicates that the parent compound has a high affinity to soil and sediment whereas the primary hydrolysis products are expected to be distributed mainly in water.
It should be mentioned here that the distribution modelling gives only a rough indication about the distribution of a substance in the environment. Paraphenylenediamins are transported to the environment mainly by tyre abrasion. Tyre road wear particles are distributed differently than estimated by the distribution model: About 78% end up in soil and about 22% in water and sediment (Danish EPA 2015). Thus, soil is the most relevant compartment.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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