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Diss Factsheets
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EC number: 201-279-3 | CAS number: 80-43-3
- 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 water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
In a manometric respirometry test average mineralisation rates of 20 % (at 100 mg test substance/L) and 44 % (at 20 mg test substance/L) were determined, however with high variability between replicates. Furthermore, in a prolonged closed-bottle test dicumyl peroxide was degraded by 18 % after 28 days and by 60 % after 57 days. Therefore, ultimate degradation of dicumyl peroxide has been demonstrated, but the criteria for being regarded as readily biodegradable are not fulfilled.
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable, not fulfilling specific criteria
Additional information
In a previous study according to OECD guideline 301 D (closed bottle test) dicumyl peroxide was not biodegradable after 28 days, but biodegradation was observed in a prolonged test for up to 57 days. This study is considered to be of limited reliability since employing an unsuitably high nominal test concentration (1000 mg/L) and lacking a toxicity control. Nevertheless, also this somewhat deficient study confirms the potential of dicumyl peroxide for biological degradability.
In conclusion, the available screening test results strongly suggest that dicumyl peroxide is prone to biological degradation, but cannot be identified as readily biodegradable. Although no tests on inherent biodegradability are available, the currently existing information supports classification of dicumyl peroxide as “inherently biodegradable”, however without fulfilling specific criteria (since this cannot be evaluated due to lack of a true inherent test).
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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