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Diss Factsheets
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EC number: 203-607-0 | CAS number: 108-69-0
- 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)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Remarks:
- Study on behalf of competent authorities of Japan,
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- GLP compliance:
- not specified
- Specific details on test material used for the study:
- Purity: 98.5%
Lot: DU01
Code: K-1026
liquid - Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
liquid volume: 300 mL
- Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): derived from a mixture of source
Fushikogawa Treatment Plant (Sapporo City, Hokkaido)
Nakahama Treatment Plant (Osaka City, Osaka Prefecture)
Kitakami River (Ishinomaki City, Miyagi Prefecture)
Yoshino River (Tokushima City, Tokushima Prefecture)
Hiroshima Bay (Hiroshima City, Hiroshima Prefecture)
Fukashiba Treatment Plant (Kashima-gun, Ibaraki)
Ochiai Treatment Plant (Shinjuku-ku, Tokyo)
Shinano River (Nishikanbara-gun, Niigata)
Lake Biwa (Otsu City, Shiga Prefecture)
Dokai Bay (Kitakyushu City, Fukuoka Prefecture)
- Method of cultivation: The filtrate of each of the sludge collected in the above-mentioned regions was mixed with 54 filtrate of the old activated sludge that had been used for the test. The pH was adjusted to 7.0 ± 1.0 and aeration in an incubator
- Water filtered: yes
- The concentration of suspended substance in the activated sludge was 5800 mg/L
- pH adjusted to 7.0- Duration of test (contact time):
- 28 d
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Remarks:
- BOD
- Parameter followed for biodegradation estimation:
- TOC removal
- Parameter followed for biodegradation estimation:
- other: HPLC
- Reference substance:
- aniline
- Parameter:
- other: HPLC
- Value:
- 0
- Sampling time:
- 4 wk
- Parameter:
- % degradation (TOC removal)
- Value:
- 3
- Sampling time:
- 4 wk
- Remarks on result:
- other: 3 - 4 %
- Parameter:
- % degradation (O2 consumption)
- Remarks:
- BOD
- Value:
- 3
- Sampling time:
- 4 wk
- Remarks on result:
- other: 1 - 5 %
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The test substance was not degraded by microorganisms under the test conditions.
- Executive summary:
The test substance 3,5-xylidine was assessed in a biodegaradtion study according to OECD Guildeine 301C (modified MITI Test (I)).
The test substance was incubated in activated sludge for 28 days at a concentration of 100 mg/L with a liquid volume of 300 mL at 25 +/- 1°C. The measurement of the biochemical oxygen demand (BOD) was performed by a closed oxgen consumption measurment device and the quantitative analysis was performed by the analysis method of total organic carbon (TOC). Quantitative analysis of the test substance was done by high-preformance liquid chromatography (HPLC).
The test results were as follows:
BOD degradation rate: 1%, 5%, 0%,
TOC degradation rate: 4%, 3%, 3%
Test substance degradation (HPLC): 0%, 0%, 0%,
The tes substance was not degraded by microorganisms under the conditions of the test.
Reference
Description of key information
OECD 301 C, BOD degradation rate: 1%, 5%, 0%; TOC degradation rate: 4%, 3%, 3%; HPLC: 0%, 0%, 0% after 28 days
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- 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.