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EC number: 924-083-6 | 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
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 17.06.2003-15.07.2003
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 003
- Report date:
- 2003
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 2,4-dibromo-6-({[(1r,4r*)-4-hydroxycyclohexyl]imino}methyl)phenol
- EC Number:
- 924-083-6
- Molecular formula:
- C13 H15 Br2 N O2
- IUPAC Name:
- 2,4-dibromo-6-({[(1r,4r*)-4-hydroxycyclohexyl]imino}methyl)phenol
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Constituent 1
Results and discussion
% Degradation
- Parameter:
- other: biochemical oxygen demand (BOD)
- Value:
- >= 43 - <= 49
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable, but failing 10-day window
- Conclusions:
- Consequently, NA 1523 was found to be moderately biodegradable (43 - 49%) under the
test conditions within 28 days. However, the pass Ievei for ready biodegradability, i.e. a
biodegradation of at least 60% of the ThOD in a 1 0-day window within the 28-day period of
the testwas not reached. - Executive summary:
The test item NA 1523 was investigated for its ready biodegradability in a manometric respirometry test over 28 days based on EU Commission Directive 92/69 EEC, C.4-D (1992) and OECD Guideline for Testing of Chemieals No. 301 F (1992). The percent biodegradation of the test item was calculated based on the theoretical oxygen demand of 1.23 mg 02/mg test item without nitrification (Th0DNH4) and 1.40 mg 0 2/mg test item with nitrification (ThODNo3). The biochemical oxygen demand (800) of NA 1523 in the test media slowly but steadily increased from about Day 8 until test termination after 28 days. At the end of the 28-day exposure period, the mean biodegradation of NA 1523 amounted to 49% without nitrification and 43% with nitrification. Consequently, NA 1523 was found to be moderately biodegradable (43 - 49%) under the test conditions within 28 days. However, the pass Ievei for ready biodegradability, i.e. a biodegradation of at least 60% of the ThOD in a 1 0-day window within the 28-day period of the testwas not reached. ln the toxicity control, containing both NA 1523 and the reference item sodium benzoate, no inhibitory effect on the biodegradation of the reference item was determined. Thus, NA 1523 had no inhibitory effect on the activity of activated sludge microorganisms. ln the procedure controls, the reference item sodium benzoate was biodegraded by an average of 85% on exposure Day 14, and reached an average biodegradation of 87% by the end of the test (Day 28), thus confirming suitability of the activated sludge.
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