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EC number: 426-650-9 | CAS number: 191743-75-6
- 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
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
The test substance does not significantly accumulate in organisms.
Key value for chemical safety assessment
Additional information
In Article 13 of Regulation (EC) No 1907/2006, it is laid down that information on intrinsic properties of substances may be generated by means other than tests, provided that the conditions set out in Annex XI (of the same Regulation) are met. Furthermore according to Article 25 of the same Regulation testing on vertebrate animals shall be undertaken only as a last resort.
According to Annex XI of Regulation (EC) No 1907/2006 (Q)SAR results can be used if (1) the scientific validity of the (Q)SAR model has been established, (2) the substance falls within the applicability domain of the (Q)SAR model, (3) the results are adequate for the purpose of classification and labeling and/or risk assessment and (4) adequate and reliable documentation of the applied method is provided.
For the assessment of the test substance (Q)SAR results were used for bioaccumulation. The criteria listed in Annex XI of Regulation (EC) No 1907/2006 are considered to be adequately fulfilled and therefore the endpoint(s) sufficiently covered and suitable for risk assessment.
Therefore, and for reasons of animal welfare further experimental studies on bioaccumulation are not provided.
The bioaccumulation potential of the substance was tested in a guideline study following OECD 305 (Institute of Ecotoxicology 2002). Japanese carp (Cyprinus carpio) were exposed to the test substance for 28 days. The determined bioconcentration factor was <33 and the test item does not significantly accumulate in fish. Despite the use of an emulsifier the test is regarded as valid in a weight of evidence since the low exposure level (0.1 mg/L) was at the water solubility of the test item (0.1 mg/L).
However, the results are supported by the calculated logPow of 12.91 and the molecular weight of the test item (at least 756). According to the guidance on information requirements and chemical safety assessment Chapter R.11 - PBT Assessment - the aquatic BCF of a substance is probably lower than 2000 L/kg if the calculated logKow is higher than 10. A molecular weight higher than 1100 g/mol is an indicator that the aquatic BCF of the respective substance is lower than 2000 L/kg. If the substance has a molecular weight higher than 700 g/mol this is an indicator that the BCF is below 5000 L/kg.
Furthermore, the maximum diameter of the main components was calculated using CATALOGIC v5.11.5. It resulted in an average maximum diameter (Dmaxaver) of 2.14 nm. According to the guidance R. 11 another parameter that directly reflects the molecular size of a substance is the average maximum diameter (Dmaxaver). Very bulky molecules will less easily pass the cell membranes. This results in a reduced BCF of the substance. From a diverse set of chemicals it appeared that for compounds with a Dmaxaver larger than 1.7 nm the BCF value was less than 5000 L/kg. It can be assumed combining the maximum diameter of above 1.7 nm and the high molecular size of the test item that the test item will not easily pass the cell membranes, the uptake is reduced and bioaccumulation will not occur.
Additionally, four different calculations were conducted to support these results. US EPA EPISuite v4.10 (BCF BAF v3.01) revealed a BCF of 3.16 L/kg wet-wt (the test substance was within the applicability domain, except for the calculated logKow). VEGA version 1.0.8 resulted in a BCF of 2 L/kg. However, the test substance was out of the model applicability domain. Nevertheless, the value fits in the overall weight of evidence and can be used as an indication for the assessment of the bioaccumulation potential. CATALOGIC v5.11.5 (BCF base-line model v2.05) resulted in a BCF of 7.44 with all mitigating factors applied. Even though the structural domain was correct with only 73.47 % (26.53 % unknown) the results support the overall conclusion in the weight of evidence. US EPA T.E.S.T v4.0.1 was also calculated, however, the consensus prediction for this chemical is considered unreliable since only one prediction can only be made and no BCF could be determined.
In overall conclusion, regarding all available information the test item does not significantly accumulate in organisms and the BCF is below 100.
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.