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Diss Factsheets
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EC number: 202-088-8 | CAS number: 91-66-7
- 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:
- other: data is from authoritative database (j check)
- Justification for type of information:
- data is from authoritative database (j check)
- Qualifier:
- according to guideline
- Guideline:
- other: referprinciple below
- Principles of method if other than guideline:
- Biodegradation of test chemical was analysed by BOD and TOC parameter for 14 days by taking activated sludge as a inoculums.
- GLP compliance:
- not specified
- Oxygen conditions:
- not specified
- Inoculum or test system:
- other: activated sludge
- Details on inoculum:
- - Concentration of sludge:30 mg/L
- Duration of test (contact time):
- 14 d
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- other: BOD
- Parameter followed for biodegradation estimation:
- TOC removal
- Details on study design:
- Standard type
- Parameter:
- other: BOD
- Value:
- 0
- Sampling time:
- 14 d
- Remarks on result:
- other: other details not available
- Parameter:
- % degradation (TOC removal)
- Value:
- 1
- Sampling time:
- 14 d
- Remarks on result:
- other: other details not available
- Details on results:
- The test chemical showed 0.0 %, and 1.0 % degradation by BOD, and TOC parameters in two weeks (14 days)
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The test chemical showed 0.0 % and 1.0 % degradation by BOD and TOC parameters in two weeks (14 days) so it is concluded that test chemical is not readily biodegradable.
- Executive summary:
The test chemical was subjected to biodegradation test by taking sludge as inoculums at 30 mg/L concentration. Biodegradation was analyzed by using two parameters that are BOD and TOC. The initial concentration of test chemical was 100 mg/L and study design was of standard type. After 2 weeks test chemical showed 0.0%, and 1.0 % degradation by BOD and parameter respectively in two weeks (14 days).On the basis of % degradation values it is concluded that test chemical is not readily biodegradable.
Reference
A reference value is indicated as the degree of degradation obtained from direct quantitative analysis because retention after 2 week
(Water + Test Substance) system is 60 - 70%.
Description of key information
The test chemical was subjected to biodegradation test by taking sludge as inoculums at 30 mg/L concentration. Biodegradation was analyzed by using two parameters that are BOD and TOC. The initial concentration of test chemical was 100 mg/L and study design was of standard type. After 2 weeks test chemical showed 0.0%, and 1.0 % degradation by BOD and parameter respectively in two weeks (14 days).On the basis of % degradation values it is concluded that test chemical is not readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
Various experimental studies have been reviewed for test chemical for biodegradation in water endpoint and their results are summarized below.
The first experimental study have been reviewed from authoritative database ( J check) in this study the test chemical was subjected to biodegradation test by taking sludge as inoculums at 30 mg/L concentration. Biodegradation was analyzed by using two parameters that are BOD and TOC. The initial concentration of test chemical was 100 mg/L and study design was of standard type. After 2 weeks test chemical showed 0.0%, and 1.0 % degradation by BOD and parameter respectively in two weeks (14 days).On the basis of % degradation values it is concluded that test chemical is not readily biodegradable.
Next study was reviewed from Sewage and Industrial Wastes journal (1955) in this study the biodegradation experiment was performed by using to OECD test guideline 301C. The percent degradation of test chemical was determined to be 0.0% in 14 days by using activated sludge as inoculum. On the basis of percent degradation value it is concluded that test chemical is not readily biodegradable in nature.
Another study was reviewed from secondary source in this study the percent biodegradation of test chemical was determined to be 0.0% by using BOD as parameter and sewage as inoculums in 5 days at 20 oC. On the basis of percent degradation value it is concluded that test chemical is not readily biodegradable in nature.
By considering results of all the studies mentioned above it is concluded that test chemical is not readily biodegradable.
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.
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