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Diss Factsheets
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EC number: 476-900-6 | CAS number: -
- 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
Sediment toxicity
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
Under environmental conditions the substance dissociates completely in water. Distribution modelling (Mackay) yields 100% of the substance in the aqueous phase and not exposed to sediment. Bivalent metal cations like Ca2+ are present in the aqueous environment in high concentrations compared to the substance and form clusters with the anionic substance. These clusters exhibit different partitioning behaviour. Specific interactions and ion-exchange interactions between the substance and suspended solids may contribute strongly to the observed partitioning (Poiger 1994). Precipitation as the calcium or magnesium salts is a pathway that can be significant (Baughman 1994). There is sufficient weight of evidence leading to the assumption that the substance itself is not exposed and is not harmful to sediment organisms.
It can be shown by exposure estimation with the EUSES Modelling program version 2.1 that under the use conditions of the test item the sediment concentrations are low. As measured sorption/desorption data are available from an OECD 106 study (see IUCLID Section 5.4.1) it is justified to apply the Equilibrium partitioning method to derive a reasonably PNEC sediment (PNEC sediment (freshwater): 346 µg/L sediment dw). Based on the estimated PEC local sediment and the PNEC sediment it can be demonstrated that sediment toxicity testing is not warranted. The statement given above fulfills the requirement for waiving as given in 1907/2006/EC Annex X, Column 2, 9.5.1.
Poiger, T., Behavior and Fate of Detergent-derived Fluorescent Whitening Agents in Sewage Treatment, Dissertation ETH Zürich No. 10832, EWAG 1994, p. 37 – 44.
Baughman, G.L., Fate of dyes in aquatic systems. Part 3. The role of suspended sediments in adsorption and reaction of acid and direct dyes. Dyes Pigm., 1995. 27(3), p. 197-210.
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.