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Registration Dossier
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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
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EC number: 221-242-5 | CAS number: 3039-83-6
- 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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Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
Due to exposure considerations, further simulation testing for biodegradation in water and sediment is not required.
The substance is solely used as an intermediate to manufacture other substances, mainly polymers, performed in closed industrial processes. During these intermediate uses the substance is fully consumed. These intermediate uses are under full supervision of environmental legislation at industrial sites and releases of the substance to the environment are negligible. No professional uses or consumer uses do exist, nor are there any service life scenarios to be considered, as the substance is an intermediate. Hence, there is no significant exposure to the environment.
All RCRs derived for the intermediate uses (fresh water, marine water, sediment, sewage treatment plant and agricultural soil) are below 0.01 and thus, far from any risk to any of the environmental compartments, even without consideration of a biological treatment of this inherently degradable substance (see exposure scenarios). It should be noted that the substance was found being inherently biodegradable when exposed to sewage sludge from a municipal sewage treatment plant but degradation of 90% was achieved, when exposing effluent water to an adapted sewage sludge, as common in industrial settings (see supporting study, Hoechst AG). Thus, in an industrial setting, associated with on-site sewage treatment plant, the substance is considered being readily biodegradable (see REACH Annex IX waiving argument for this study in column 2). Basis for the RCRs documented in the exposure scenarios for the environment are the PNECs derived from currently available acute ecotox study data, but also data from substance concentrations in effluent data derived from an industrial site (higher tier data). So, the current assessment as outlined in the exposure scenarios for the environment are based on absolute worst-case assessments.
Furthermore, it should be recognized that the substance is ionic, having a negative log Pow (-1.01) and thus, no adsorptive capacity to bind to sediment or soil. Additionally, the substance, as well as industrial sewage sludge (e.g. from industrial sewage treatment plants) that could potentially contain the substance are not applied (e.g. as fertilizer) to soil. Also, due to the negligible vapour pressure (6.4 10E-7 Pa), volatilization and deposition to soil via air can be excluded.
By ECHA decision number CCH-D-2114554616-43-01/F long-term ecotox studies were requested, currently being performed and it is expected that the outcome of these studies will allow to reduce the safety factors, resulting in even higher PNECs for the environmental compartments and thus, even lower RCRs (PNEC for agricultural soil are derived by the equilibrium partitioning method).
Based on all reasons provided above, including worst-case exposure considerations, no simulation testing for biodegradation in soil is required.
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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