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EC number: 810-288-7 | CAS number: 1700656-13-8
- 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:
- 2006
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- no
- GLP compliance:
- yes
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, predominantly domestic, adapted
- Details on inoculum:
- Activated sludge from the sewage plant at Hildesheim is well suited as it comprises mostly municipal sewage.
Municipal sewage treatment plant, 0-31137 Hildesheim
Colony forming units of the inoculum: 10(7) - 10(8) CFU/L
Pretreatment:
The activated sludge was washed twice with autoclaved tap water. After the second washing the settled sludge was filled up with mineral salts medium. For the 1st study the sludge was thereafter maintained in an aerobic condition by aeration with CO2 free air for 7 days. For the 2nd study the sludge was homogenized with a blender for 2 min after filling up with mineral salts medium. The supernatant was decanted and maintained in an aerobic
condition by aeration with CO2 free air for 2 days. In both stud ies 10mL/L were used to initiate inoculation. - Duration of test (contact time):
- 28 d
- Initial conc.:
- 15 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Reference substance:
- benzoic acid, sodium salt
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 18.8
- Sampling time:
- 28 d
- Remarks on result:
- other: study 1 replicate 1
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 81
- Sampling time:
- 28 d
- Remarks on result:
- other: study 1 replicate 2
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 94
- Sampling time:
- 28 d
- Remarks on result:
- other: study 2 replicate 1
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 21.6
- Sampling time:
- 28 d
- Remarks on result:
- other: study 2 replicate 2
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The test item must be regarded as readily biodegradable in the 10-d-window and after 28 days. The test item complies with the biodegradability criteria as laid down in Annex III of Regulation (EC) No 648/2004 on detergents.
- Executive summary:
The biodegradability was determined with a non adapted activated sludge for the test item over a test period of 28 days in the Modified Sturm Test. Two independent studies were conducted according to OECD 301B/CO2 evolution test.
The test item was tested with a concentration of 15 mg/L in duplicates. The biodegradation of the test item was followed by titrimetric analyses of the quantity of CO2 produced by the respiration of bacteria.
The degradation was finished on day 28 by acidification, the last titration was made on day 29, after the soluble CO2 was turned out over a period of 24 h. The percentage CO2 production was calculated in relation to the theoretical CO2 (ThCO2 ) of the test item. The biodegradation was calculated for each titration time.
Two studies were performed because the difference in the results of the replicates was > 20%.
In the 1st study the 2nd test item replicate reached the 10 % level (beginning of biodegradation) after 8 days and the pass level of 60 % after 18 days. The biodegradation came to a maximum of 81 % after 28 days. The 2nd test item replicate reached the 10 % level after 21 days. The pass level of 60 % was not reached until day 28. The biodegradation came to a maximum of 17 % after 28 days.
In the 2nd study the 1st test item replicate reached the 10 % level (beginning of biodegradation) after 9 days and the pass level of 60 % after 14 days. The biodegradation came to a maximum of 96 % after 28 days. The 2nd test item replicate reached the 10 % level after 11 days. The pass level of 60 % was not reached until day 28. The biodegradation came to a maximum of 19 % after 28 days. It is assumed that the difference of both replicates in each study is due to the low solubility of the test item.
Reference
Description of key information
The test item must be regarded as readily biodegradable in the 10-d-window and after 28 days. The test item complies with the biodegradability criteria as laid down in Annex III of Regulation (EC) No 648/2004 on detergents.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
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.
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