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Diss Factsheets
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EC number: 603-923-2 | CAS number: 135590-91-9
- 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
The substance is not expected to pose a risk to sediment organisms. The substance has a low adsorption potential (Koc range 486 – 823) and thus adsorption to sediment particles is not expected. The available aquatic toxicity tests demonstrated that the substance is not acutely very toxic to aquatic organisms. All available effect concentrations (EC/LC50) are > 1 mg/L . Furthermore, the substance is not expected to accumulate and persist in the sediment compartment. The available sediment simulation test demonstrated a degradation of the substance in natural water and sediment. A rapid hydrolysis of the substance by microbially induced processes was observed in the study with half-lives of 0.6 d in the water phase and 1.1 d for the tested water-sediment system. The determined metabolites of the parent substance were mono-and dicarboxylic acids and their salts.
Furthermore, according to Annex IX, column 2 of Regulation (EC) No 1907/2006, testing with sediment organisms does not need to be conducted as the Chemical Safety Assessment does not indicate a need for further investigations. According to Annex XI, Section 3 of Regulation (EC) No 1907/2006 toxicity tests on sediment organisms are considered not necessary. The exposure concentrations for the sediment compartment during the lifecycle of the substance are low. The environmental exposure assessment for the substance indicates no risk for the sediment compartment (all RCR< 1; please refer to Chapter 9 and 10 of the Chemical Safety Report for detailed information).
Supporting information on the sediment toxicity of a metabolites of the test item is available.
Data available for one of the major metabolites determined no toxic effects up to the highest tested concentration. The study was conducted according to OECD guideline 219. A static exposure regime was applied for 28 days using Chironomus riparius as test organisms. The test was set up in a water-sediment system using spiked water. Effects on emergence rate and development rate were not observed. The reported EC50 (28 d) was >50 mg/L (NOEC (28 d) 50 mg/L).
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.