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Diss Factsheets
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EC number: 211-754-7 | CAS number: 693-57-2
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
Hydrolysis
In accordance with Column 2 of REACH Annex VIII, the hydrolysis study (as required under Section 9.2.2.1) is not required as the substance is readily biodegradable.
Biodegradation
Biodegradation in water: screening tests
The substance is readily biodegradable (O2 consumption, 97.3% degradation after 14 days (Kitano, 1985, according to 1973, Law No.117, Japan; specifically, Section 7-1 "Method for Testing the Biodegradability Of Chemical Substances by Microorganisms).
The study was non-GLP and conducted to a non-standard test method. However the reporting is adequate and result is conclusive so it considered acceptable as a standalone study. The study was assigned a reliability score of 2 according to the principles for assessing data quality set out in Klimisch (1997) and is considered suitable for assessment as an accurate reflection of the test material.
Volatilisation
The calculated Henry's law Constant of 7.3x 10^-12 Pa m3/mol at 25°C, 101325 Pa indicates very low volatility from surface waters.
Distribution modelling
The following distribution modelling data are available using EPA (EPI Suite 4.1) and EUSES model. (Simple Treat, 2.1.2) partitioning models predict that 84.5% will be degraded, 12.3% will be directed to water, 3.22% to sludge and <<1% to air.
Fugacity modelling with the EPA EPI Suite 4.1 Fugacity model (Level III) predicts 80.8% in soil, 18.8% in water, 0.281% in sediment and 0.115% in air.
Summary of environmental distribution
In accordance with Column 2 of REACH Annex VIII, the screening adsorption study (as required under Section 9.3.1) does not need to be conducted as the substance has been found to be readily biodegradable and has a low log Pow.
EPI suite (KOCWIN v2.00) estimates a KOC value of 365L/kg (MCI method). In Section 4 the solubility is reported as 0.137 g/L and the vapour pressure as 4.5 x 10^-12 Pa at 25 °C. Based on these properties the substance would be expected to be primarily distributed to the water compartment. Using the modelling distribution data in the section above, the partitioning within a sewage treatment plant has been predicted with EUSES Model 2.1.2. Significant partitioning to water is predicted by EUSES while significant partitioning to soil is predicted by the EPISuite fugacity model.
Summary and discussion of bioaccumulation
No experimental data on bioaccumulation are available as the log Kow of -0.607 (Walker & Mullee, 2007) shows a low potential to bioaccumulate.
EPI suite (BCFBAF v3.01) estimates a BCF of 3.162 l/kg wwt (log BCF 0.500 based on regression based method).
Secondary poisoning
Based on the low log Kow -0.607 the substance is expected not to be bioacummulative and hence the possibility of secondary poisoning is low.
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.
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