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Diss Factsheets
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EC number: 211-687-3 | CAS number: 686-31-7
- 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
The most sensitive endpoint for the most sensitive species currently available for the terrestrial compartment is a NOEC of 1.37 mg/kg DW for sugar beet species. No other terrestrial endpoints are available at present. The ready biodgradable profile of the substance and the log KOC of 3.24 would suggest that the substance will likely not reach, therefore accumulate in or strongly adsorb to the soil.
Additional information
Based on the physical chemical profile of the substance it is not considered as highly adsorptive due to having a Log KOC of 3.24. In addition the substance is readily biodegradable and is used soley for industrial purposes and will therefore always pass water treatment before release to the environment. Soil (and sediment) are therefore not expected to be compartments of concern for this substance.
However, it should be noted chemicals could reach the soil via several routes:
1. Application of sewage sludge in agriculture.
Although not common practice, application of sewage sludge in agriculture cannot be completely excluded. Due to the readily biodegradable properties of the test material exposure to soil via this route is not expected.
Regarding the rest of the lifecycle, organic peroxides are mainly used as cross-linking agent/polymerization initiator for the production of resins/rubbers/polymers. Based upon the fact that these processes take place at high temperatures far in excess of the SADT, organic peroxides are totally consumed during this process (>99%). Processes are in addition water-free (so no production of sewage sludge), it is assumed that the soil is not exposed to organic peroxides in the rest of the lifecycle.
2. Direct application of chemicals.
Based on the uses inventoried for organic peroxides we can consider that there is no direct application of these substances on the soil compartment. Hereunder, the relevant Environmental Release Categories (ERC), as described in guidance R12 (version 2.0, dated 7/11/2010)
3. Deposition from the atmosphere.
Deposition from the atmospheric compartment involves volatilization, vaporization or direct release of a considered substance into the atmosphere. Due to their dangerous intrinsic physico-chemical properties, organic peroxides are carefully handle in closed systems and their transport and production are ruled by several regulations. Based on organic peroxides uses too, we may assume thatdeposition on soil from the atmosphere is unexpected.
Based on the above justifications there is likely no exposure to soil. However, as complete absence of exposure to soil is at this stage not possible to conclude, one soil test has therefore been conducted to make PNEC calculation possible. Based on ECHA guidance R 7c, the substance is a soil hazard category 2 (Log Kow <5, Readily biodegradable but toxic). A short term test on the most sensitive species from the aquatic assessment is then suggested in the guidance. Based on aquatic testing, algae is the most sensitive species. The registrant has conducted an OECD 208 using 6 different species.
The PNEC derived from this study is similar to the one derived with the Equilibrium Partitioning Method and does not show risk for any of the uses (PEC/PNEC < 1), therefore no further testing is proposed.
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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