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EC number: 688-332-8 | CAS number: 199119-58-9
- 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
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
Half lives ranged from 15.6 to 186 days, No guideline, Hosang (1997)
Biphasic degradation, 1st phase 5.3 days, 2nd phase 107.9 days, DT50 50 days, EPA 162-1, Clark (1999)
Half life 19.1 days, EPA 162-3, Clark 1999.
Biphasic degradation, 1st phase 5.4 days, 2nd phase 107.9 days, EPA 162-1, , DT50 30 days McDonald (1999)
Half lives ranged from 66.1 to 78.2 days 95/36/EEC Annex II: 7.1.1.2, , Morgenroth (1999)
Aerobic half life 55.2 days, anaerobic half life 59.5 days, 95/36/EC Annex II: 7.1.1, Nicollier (1999)
DT50 22.3 days, low moisture half life 122.7 days, 95/36/EC Annex II: 7.1 & 7.1.1.2, Nicollier (1999)
Aerobic DT50 50.4 days, anaerobic DT50 45.5 days, 95/36/EC Annex II: 7.1.1, Reischmann (1999)
Half lives ranged from 57.9to 83.3 days, 95/36/EC Annex II: 7.1 & 7.1.1, IBAMA (Port. 84/96), Brandelli (2000)
Half life 19.8 days EPA 162-3, , McDonald (2000)
Half life 20 to 52.3 days, Koc 129 to 17524 mL/g, EPA 163-1, Moore (2000)
Half life 24 to 133.0 days, Koc 101.5 to 1710.0 mL/g, EPA 163-1, Peters (2000)
Key value for chemical safety assessment
Additional information
This endpoint has been addressed on a weight of evidence basis. Twelve soil degradation studies have been provided covering tests on a range of effect parameters.
Half lives ranged from approximately 15.6 to 186 days, measured under varying parameters and the DT50 ranged from 22.3 to 50.4 days. The half life of the test material was considered to be independent to soil properties (Morgenroth, 1999), however dissipation was faster under acidic conditions (Hosang, 1997). Furthermore aerobic/anaerobic conditions had little effect on the rate of degradation (Nicollier, 1999 and Reischman, 1999). The moisture level of the soil was observed to have a significant effect on the half life of the test material in soil, lower moisture levels dramatically increased half lives (Nicollier, 1999 and Hosang, 1997). Degradation was shown to be biphasic with a short 1stphase followed by a significantly longer 2ndphase (Clark and McDonald 1999). Up to six consistent metabolites were identified. The consensus is that the primary route of degradation occurred via hydrolysis, where adsorption/desorption and microbial degradation only contributed to degradation slightly.
Hosang (1997) is a non-GLP compliant study performed to sound scientific principles with a sufficient level of detail to assess the quality of the submitted data. In line with the principles for assessing data quality set out by Klimisch (1997) this study has been assigned a reliability score of 2. The remaining eleven studies were all performed according to GLP and standardised guidelines, with a high level of reporting and have thus been assigned a reliability score of 1. The studies are all considered to be reliable, relevant and adequate for risk assessment purposes.
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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