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Diss Factsheets
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EC number: 918-811-1 | CAS number: -
- 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:
- 11-May-2001 to 8-Jun-2001
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: This robust summary has a reliability rating of 2 because the study followed a standard test guideline, there were no deviations from the protocol, however it was not conducted under GLP.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Deviations:
- no
- GLP compliance:
- no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- Inoculum used as the source of the microorganisms was an aliquot of fresh activated sludge from a domestic wastewater treatment facility in New Jersey, USA.
- Duration of test (contact time):
- 28 d
- Initial conc.:
- ca. 50 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- Test material was tested in triplicate, controls and blanks were tested in duplicate. The amount of oxygen consumed by microorganisms from the oxidation of the test material was continuously monitored by an automated respirometer during the 28-day test period. Test material concentration was approximately 50mg/L. Sodium benzoate (positive control) concentration was 50mg/L. All test vessels were stirred constantly for 28 days
using magnetic stir bars and plates. - Reference substance:
- benzoic acid, sodium salt
- Parameter:
- % degradation (O2 consumption)
- Value:
- 1.79
- St. dev.:
- 2.29
- Sampling time:
- 5 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 5.73
- St. dev.:
- 0.55
- Sampling time:
- 6 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 29
- St. dev.:
- 1
- Sampling time:
- 7 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 42.63
- St. dev.:
- 2.02
- Sampling time:
- 13 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 49.56
- St. dev.:
- 0.37
- Sampling time:
- 28 d
- Details on results:
- Test material was inherently biodegradable. Half-life was approximately 4 weeks. By day 28, approximately 49.6% degradation of the test material was observed. 10% biodegradation was achieved on approximately day 7, 50% biodegradation was not achieved. By day 14, >60% biodegradation of positive control was observed, which meets the guideline requirement. No excursions from the protocol were noted.
Biodegradation was based on oxygen consumption and the theoretical oxygen demand of the test material as calculated using results of an elemental analysis of the test material. - Results with reference substance:
- Sodium benzoate, the positive control, achieved 88.7% with a standard deviation of 2.71% degradation after 28 days, and therefore this test may be considered valid.
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- inherently biodegradable
- Conclusions:
- Hydrocarbons, C10, aromatics, <1% naphthalene, biodegraded 49.6% after 28 days under the conditions of the study and is inherently biodegradable.
- Executive summary:
Hydrocarbons, C10, aromatics, <1% naphthalene, biodegraded 49.6% after 28 days under the conditions of the study and is inherently biodegradable.
Reference
% Degradation* | Mean % Degradation | |
Sample | (day 28) | (day 28) |
Test Material | 49.8, 49.3 | 49.6 |
Na Benzoate | 89.6, 85.7, 90.9 | 88.7 |
* replicate data
Description of key information
Hydrocarbons, C10, aromatics, <1% naphthalene, biodegraded 49.6% after 28 days in an aerobic OECD 301F test, and under the conditions of the study and is inherently biodegradable.
Key value for chemical safety assessment
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.