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EC number: 284-325-5 | CAS number: 84852-15-3
- 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

Endpoint summary
Administrative data
Description of key information
Additional information
From results on a test for ready biodegradability nonylphenol appeared to be inherently biodegradable (Gledhill 1999; OECD 301B). A second experiment (Staples 1999; OECD 301F) confirmed the biodegradability of nonylphenol: in this study nonylphenol met the criteria for ready biodegradability except for the 10-day window. These data indicate that nonylphenol is inherently biodegradable.
Simulation tests for the biodegradation of Nonylphenol are available for the environmental compartments freshwater, freshwater sediment, seawater, marine sediment, and soil.
The results from simulation experiments demonstrate that nonylphenol is unlikely to persist under most oxic conditions in surface waters and sediments. In anoxic conditions, particularly in sediments, nonylphenol is less biodegradable. Adsorption to sediments is also a significant route of removal of nonylphenol from the water column, as demonstrated in abiotic sterile controls of sediment experiments by the loss of the test substance from the liquid phase in closed systems where volatilization losses were possible.
The available data indicate that nonylphenol also undergoes biodegradation in soil systems. The mineralization of nonylphenol is not dependent of the initial concentration except for very high concentrations (e.g. 1000 mg/kg, Trocmé et al, 1988) with inhibits biodegradation of nonylphenol because of toxicity to micro-organisms.
Furthermore, nonylphenol degradation in soils is dependent on soil temperature and soil moisture conditions (Topp et al, 2000) as well as on oxygen conditions. In a study conducted by Topp et al, 2000, nonylphenol degradation was limited due to lack of oxygen related to high BOD as a result of increased concentrations of sewage sludge.
Conclusion:
In view of the stringent conditions employed in screening tests on ready biodegradability, nonylphenol cannot be considered persistent. Biodegradation is an important removal process of nonylphenol in surface water and treatment plants.
In river bed sediments, marine sediments, and surface waters nonylphenol is biodegradable under most oxic conditions but is likely biodegrade more slowly under lower temperature and anoxic conditions.
Nonylphenol is biodegradable in soils and would be rapidly dissipated in well-aerated soils following application of sewage sludge.
According to Annex XIII of Regulation (EC) No 1907/2006 and to the Guidance on information requirements and chemical safety assessment Chapter R.11 (PBT Assessment, ECHA (2008)), a substance does fulfil the criteria “persistent (P)”, if:
- the half-life in marine water is higher than 60 days, or
- the half-life in fresh- or estuarine water is higher than 40 days, or
- the half-life in marine sediment is higher than 180 days, or
- the half-life in fresh- or estuarine water sediment is higher than 120 days, or
- the half-life in soil is higher than 120 days.
From assessment of the results obtained for nonylphenol against the Persistence criteria defined above, it can be concluded that nonylphenol is not Persistent (P) or very Persistent (vP) under the majority of oxic environmental conditions.
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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