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Diss Factsheets
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EC number: 213-147-2 | CAS number: 927-07-1
- 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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Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to soil microorganisms
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because direct and indirect exposure of the soil compartment is unlikely
- Justification for type of information:
- The performance of a test for toxicity to soil micro-organisms, macro-organisms, arthropods and terrestrial plants was considered not scientifically justified. REACH Regulation No. 1907/2006, Annex IX as well as Annex X, Sect. 9.4, Col. 2, states the following:
“9.4: These studies need not to be conducted if direct and indirect exposure of the soil compartment is unlikely.”
Direct and indirect exposure of the peroxyesters to soil is highly unlikely. Based on exposure assessment, release rates to the soil and air compartment are considered to be 0%. Application of STP sludge to agricultural soil is not supported. All peroxyesters of this group are used at industrial settings only. There are no widespread or wide-dispersive uses foreseen for these substances.
Due to the unstable nature of organic peroxides, it can be assumed that upon contact with water and organic matter, the substances undergo hydrolytic degradation resulting in the formation of respective alcohols and acids. Thus, toxicity testing on soil organisms was considered not scientifically justified. This is confirmed by the following argumentation:
1. Application of sewage sludge in agriculture.
Organic peroxides, when released into the sewage of a production plant or a downstream user’s plant, are treated with other substances in dedicated sewage treatment plants. The activated sludge stemmed from these sewage treatment plants are then extracted and treated as chemical waste. From the production plant, the release of organic peroxide into the sewage is very limited, not to say completely negligible. The waste water from production plant can be treated on site (at least a physical/chemical treatment, which will neutralize potential residual organic peroxide), which is usually followed by a biological treatment. Therefore, it is expected that organic peroxides are not present in sludge. Furthermore, application of sludge to soil is excluded for industrial uses.
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 organic peroxides are totally consumed during the process (>99%, which is confirmed by the release factor to sewage for curing agents from ESD n°3), the soil is not exposed to organic peroxides via use of sludge.
As a consequence, soil is not exposed to organic peroxyesters.
2. Direct application of chemicals. Based on the uses inventoried for organic peroxides there is no direct application of these substances on the soil compartment. Indeed, all uses are within industrial settings.
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 handled in (semi-)closed systems and their transport, production and use are strictly controlled. This is also in line with the release factor to atmosphere for curing agents from ESD n°3. Thus, deposition on soil from the atmosphere is not expected.
Based on these arguments no tests are proposed for the soil compartment with peroxyesters.
Reference
Description of key information
The performance of a test for toxicity to soil micro-organisms, macro-organisms, arthropods and terrestrial plants was considered not scientifically justified, according to REACH Regulation No. 1907/2006, Annex IX as well as Annex X, Sect. 9.4, Col. 2.
Key value for chemical safety assessment
Additional information
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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