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Diss Factsheets
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EC number: 217-682-2 | CAS number: 1929-82-4
- 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
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Not readily biodegradable (4.3% degradation by day 29), OECD 301 B, EPA OPPTS 853.3100, Tunink (2012)
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
The ready biodegradability of the test material was investigated in a study which was conducted under GLP conditions and in accordance with the standardised guidelines OECD 301 B and EPA OPPTS 853.3100. The study was therefore assigned a reliability score of 1 in line with the criteria of Klimisch et al. (1997).
During the study duplicate control systems, containing the microbial inoculum with no test or reference substance, were used to determine the endogenous microbial CO2 evolution. Duplicate inoculated test material systems, which were dosed with the test material at a nominal concentration of 20.0 mg C/L, were used to monitor biodegradation of the test material. A reference substance system containing readily biodegradable sodium benzoate at a nominal concentration of 20.0 mg C/L was tested to verify the viability of the microbial inoculum. A toxicity control system containing readily biodegradable sodium benzoate at a nominal concentration of 20.0 mg C/L and the test material at a nominal concentration of 20.0 mg C/ L was tested to monitor potential inhibition by the test material. All systems were sampled for CO2 trapped in 0.2 N KOH on Days 0, 3, 5, 7, 11, 14, 19, 24, 28 and 29. The 0.2 N KOH trapping solutions were analysed for CO2 by inorganic carbon analysis on a total organic carbon analyser for each sample day. The CO2 evolved from the control system was subtracted from the CO2 evolved in the test and reference substance systems.
The test material systems yielded a mean CO2 value of 4.3% by Day 29 of the study. Since the biodegradation value was less than 60% theoretical (ThCO2) by Day 29, the test material cannot be classified as readily biodegradable from the results of this study. Biodegradation in the reference substance system reached 62.7% ThCO2 by Day 11 and 76.7% ThCO2 by Day 29, verifying that the microbial inoculum was viable and active. Biodegradation in the toxicity control system reached 43.3% ThCO2 by Day 29. Since the biodegradation value was greater than 25% ThCO2, the test material can be assumed to not be inhibitory.
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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