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Diss Factsheets
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EC number: 284-660-7 | CAS number: 84961-70-6
- 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)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Dec. 8, 1992-Jan. 13, 1993
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Comparable to guideline study.
- Qualifier:
- according to guideline
- Guideline:
- other: BODIS - Test (BOD-test for insoluble substances)
- GLP compliance:
- yes (incl. QA statement)
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): activated sludge from Lippeverbands, Germany domestic purification plant
- Concentration of sludge: 1.7 g/L - Duration of test (contact time):
- 28 d
- Initial conc.:
- 5.4 other: mg/flask
- Based on:
- test mat.
- Initial conc.:
- 5.8 other: mg/flask
- Based on:
- test mat.
- Initial conc.:
- 6 other: mg/flask
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Reference substance:
- diethylene glycol
- Parameter:
- % degradation (O2 consumption)
- Value:
- 28
- Sampling time:
- 28 d
- Results with reference substance:
- The test substance was 87% degraded during the test, and achieved 60% degradation within 10 days of being 10% degraded. The test is therefore valid.
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- other: poorly biodegradable
- Conclusions:
- This study demonstrated that the insoluble test material is poorly biodegradable, with 28% degradation in 28 days.
- Executive summary:
This study examined the potential of the test substance to biodegrade. Samples of activated sludge were exposed to 5.4, 5.8, and 6.0 mg/flask of test substance. Diethylene glycol was used as the reference substance. Oxygen measurements were taken at 7, 14, 21, and 28 days. The test substance was only 28% degraded at the end of 28 days. Results with the reference substance were valid. The test substance is not readily biodegradable.
Reference
Description of key information
The key study was conducted to examine the potential of the test substance to biodegrade using the BODIS test for insoluble substances. Samples of activated sludge were exposed to 5.4, 5.8, and 6.0 mg/flask of the test substance. Diethylene glycol was used as the reference substance. Oxygen measurements were taken at 7, 14, 21, and 28 days. The test substance degraded 28% by the end of 28 days. Results with the reference substance were valid. Therefore, the study demonstrates that HAB will biodegrade slowly in the environment but does not meet the criteria for ready biodegradability.
Key value for chemical safety assessment
- Type of water:
- freshwater
Additional information
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.