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EC number: 812-037-7 | CAS number: 1793011-72-9
- 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
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Test guideline under Japan Chemical Substances Control Law
- Deviations:
- not specified
- GLP compliance:
- yes
Test material
- Reference substance name:
- Reaction products of diazotized 4-amino-6-[(4-aminophenyl)diazenyl]-3-[(4-aminophenyl)diazenyl]-5-hydroxynaphthalene-2,7-disulfonic acid, coupled with benzene-1,3-diamine, sodium salts
- EC Number:
- 812-037-7
- Cas Number:
- 1793011-72-9
- Molecular formula:
- Unknown for all components
- IUPAC Name:
- Reaction products of diazotized 4-amino-6-[(4-aminophenyl)diazenyl]-3-[(4-aminophenyl)diazenyl]-5-hydroxynaphthalene-2,7-disulfonic acid, coupled with benzene-1,3-diamine, sodium salts
- Test material form:
- solid
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, non-adapted
- Details on inoculum:
- Mixed Liquor Suspended Solids (MLSS): 2450 mg/L (BOD measurement and recovery test)
Source: Chemical Evaluation and Research Institute, Japan
Date of Receipt: 2017-01-06 - Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimationopen allclose all
- Parameter followed for biodegradation estimation:
- O2 consumption
- Parameter followed for biodegradation estimation:
- DOC removal
- Parameter followed for biodegradation estimation:
- test mat. analysis
- Details on study design:
- Temperature: 25 ± 1°C
Test volume: 300 mL
Test bottle contents :
Bottle 1 : Test substance + ultrapure water (Abiotic sterile control)
Bottle 2-4 : Test substance + activated sludge + basal medium (test suspension)
Bottles 5 : Activated sludge + aniline + basal medium (Positive control)
Bottle 6 : Basal medium (control)
The BOD was measured continuously for 28 days.
Reference substance
- Reference substance:
- aniline
Results and discussion
- Test performance:
- From the biodegradability result based on BOD (average 0%), that of the residual test item remaining (average 5%), and the DOC (average 12%) it is concluded that the test substance is not readily biodegradable. Therefore, no transformation products were generated under the conditions of the test.
% Degradationopen allclose all
- Parameter:
- % degradation (O2 consumption)
- Value:
- 0
- Sampling time:
- 28 d
- Parameter:
- % degradation (test mat. analysis)
- Value:
- 5
- Sampling time:
- 28 d
- Parameter:
- % degradation (DOC removal)
- Value:
- 12
- Sampling time:
- 28 d
- Details on results:
- -Degradability based on BOD
The degree of degradability based on the BOD measurements was 0, 0, and 0% for bottles 2, 3, and 4, respectively.
-Degradability based on DOC
The degree of degradability based on the DOC measurements was 11, 13 and 13% for bottles 2, 3 and 4, respectively.
-Degradability based on the residual test substance concentration
The degree of degradability based on the residual test substance concentration was 10, 1, and 5 % for bottles 2, 3 and 4, respectively.
At the end of the experiment, the pH values were 9.0 for test substance suspension bottles with no sludge and 7.3 for test substance bottles with sludge.
BOD5 / COD results
- Results with reference substance:
- The degradability of aniline, based on the BOD measurements was 80 % after 7 days. The activity of the sludge was thus shown to be satisfactory.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- It is concluded that the test substance was not readily biodegradable and no transformation products were generated under the conditions of the modified MITI test.
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