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EC number: 241-769-4 | CAS number: 17791-81-0
- 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
Based on the BOD5 and COD value of the test substance (80% act. integr.), the ratio was calculated to be < 1%. The inherent biodegradability of the test substance was determined by applying the Zahn-Wellens-Test. The DOC removal was found to be 6% for the test substance (60% act. integr.) or 1.7% for the test substance (80% act. integr.), respectively. Therefore, the test substance was not biodegradable in water under the chosen conditions.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
ready biodegradability
To evaluate the ready biodegradability of the test substance (80% act. integr.), the biological oxygen demand (BOD) and the chemical oxygen demand (COD) were determined according to the EU method C.5 or EU method C.6, respectively. The BOD of the test substance was determined by measuring the dissolved oxygen concentration before and after 5 days incubation at 20°C in different test concentrations (6 to 800 mg/L) diluted in water saturated with dissolved oxygen that contains seeding water of an urban waste water. The BOD5 was 4 mg O2/g. The BOD5 of the reference substance D(+)-Glucose/L-Glutamic acid, which was tested in a concentration of 20 ml/L was 205 mg O2/L.
Regarding the COD, 5.0 mg of the test susbtance (80% act. integr.) dissolved in water was oxidized by potassium dichromate in a strong sulphuric acid medium with silver sulphate as a catalyst under reflux for 2 hours. The residual dichromate was determined by titration with standardized ferrous ammonium sulphate. The COD value was 876 mg O2/g. The reference substance Potassium hydrogen phthalate was tested in a concentration of 20 ml/L. The COD was 201 mg O2/L. The BOD5/COD ratio was calculated to be < 1%.
inherent biodegradability
To assess the inherent biodegradability of the test substance in two different purities, a study was conducted according to the 28 days Zahn-Wellens test (OECD 302 B). 463 mg/L of the test substance (80% act. integr.) was incubated with 930 mg/L sludge of a biological sewage treatment plant at 22°C under indirect daylight. The DOC removal after 28 days corrected by the blank control was 1.7 %. For the reference susbtance Diethylenglycol the DOC removal was 99.4%. Concerning the test substance (60% act. integr.), 872 mg/L of the test substance was incubated with 1030 mg/L sludge. The DOC removal was found to be 6%.
Conclusion
Based on these results, no biodegradation in water was observed under the chosen conditions.
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