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EC number: 214-078-0 | CAS number: 1078-19-9
- 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:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study according to international accepted guidelines but not GLP compliant.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.6 (Degradation: Chemical Oxygen Demand)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.5 (Degradation: Biochemical Oxygen Demand)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Guidence on the Application of the CLP Criteria
- Deviations:
- no
- GLP compliance:
- no
Test material
- Reference substance name:
- 6-methoxy-1,2,3,4-tetrahydronaphthalen-1-one
- EC Number:
- 214-078-0
- EC Name:
- 6-methoxy-1,2,3,4-tetrahydronaphthalen-1-one
- Cas Number:
- 1078-19-9
- Molecular formula:
- C11H12O2
- IUPAC Name:
- 6-methoxy-1,2,3,4-tetrahydronaphthalen-1-one
- Test material form:
- solid: crystalline
- Details on test material:
- Test item: Methoxy-Tetralone
CAS No.: 1078-19-9
Batch No.: T-5433
Physical state: solid, crystalline powder
Colour: light-yellow
Active Ingredient Content (GC): 99.6 %
Storage: on cool and dry place, protected from light
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, non-adapted
- Details on inoculum:
- 250.0 ml inoculum culture with 1.0 g/l dry substance concentration was made by mixing 26.4 ml stock culture with 223.6 ml mineral medium.
- Duration of test (contact time):
- 5 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- other: Pressure (The liberated carbon dioxide is absorbed by sodium hydroxide so the biological oxidation generates vacuum which is registered by the measuring heads.)
- Details on study design:
- This study was performed to evaluate the degradability of Methoxy Tetralone (CAS No. 1078-19-9) in an aerobic mixed bacterial culture on the base of quotient of biochemical oxygen demand (BOD) and chemical oxygen demand (COD). The test was carried out in three steps. The degradability was calculated from the quotient of BOD5 and COD according to Guidance on the Application of the CLP Criteria.
For the tests a stock solution of test item was made by dissolving 100.0 mg test item in 1 000 ml mineral medium so the nominal concentration of this stock solution was 100 mg/l.
The chemical oxygen demand was determined by the standard dichromate method. Three replicates were measured in the test.
The biochemical oxygen demand of test item is determined by the OxiTop® system. In this test the test solutions are inoculated with mixed aerobe bacterial culture and poured into 500 ml dark glass bottles. The vessels are placed into incubator at 20 ± 2 °C and continuously stirring with magnetic stirrer. The test duration is 5 days. N-Allylthiourea is added to each test vessel for inhibiting of nitrification.
Results and discussion
% Degradationopen allclose all
- Parameter:
- other: values of vacuum
- Value:
- 2.1
- Sampling time:
- 1 d
- Parameter:
- other: values of vacuum
- Value:
- 3
- Sampling time:
- 2 d
- Parameter:
- other: values of vacuum
- Value:
- 3.7
- Sampling time:
- 3 d
- Parameter:
- other: values of vacuum
- Value:
- 3
- Sampling time:
- 4 d
- Parameter:
- other: values of vacuum
- Value:
- 3.4
- Sampling time:
- 5 d
BOD5 / COD results
BOD5 / CODopen allclose all
- Parameter:
- COD
- Value:
- 2.65 g O2/g test mat.
- Parameter:
- BOD5
- Value:
- 0.09 g O2/g test mat.
- Parameter:
- BOD5*100/COD
- Value:
- 3.4 other: %
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- other: not readily biodegradable
- Conclusions:
- The BOD(5days)/COD ratio is less than 0.5. In this Degradability Test for “Methoxy Tetralone” (CAS No. 1078-19-9) the results indicated that the test item is not rapidly degradable in the aquatic environment
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