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EC number: 283-381-8 | CAS number: 84604-96-6
- 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:
- aug - dec 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Bis[bis(3,5,5-trimethylhexyl)dithiocarbamate-S,S']zinc
- EC Number:
- 283-381-8
- EC Name:
- Bis[bis(3,5,5-trimethylhexyl)dithiocarbamate-S,S']zinc
- Cas Number:
- 84604-96-6
- Molecular formula:
- C38H76N2S4Zn
- IUPAC Name:
- bis({[bis(3,5,5-trimethylhexyl)carbamothioyl]sulfanyl})zinc
- Test material form:
- solid: particulate/powder
Constituent 1
- Specific details on test material used for the study:
- Purity > 99%
BN 1120039.2
Expiry july 2013
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure):
- Laboratory culture: mixed population of activated sewage sludge from Aeration stage of Severn Trent water sewaqge plant, Leicestershire
- Method of cultivation:
- Storage conditions:
- Storage length:
- Preparation of inoculum for exposure: activated sewage sample was washed three times to remove any excessive amounts of undissolved organic carbon. The washed sample was then maintained on continuous aeration in lab at constant temp of 21°C
- Pretreatment:
- Concentration of sludge: suspended solids concentration was equal to 3.4g/l
- Initial cell/biomass concentration:
- Water filtered: yes/no
- Type and size of filter used, if any: - Duration of test (contact time):
- ca. 28 d
Initial test substance concentration
- Initial conc.:
- ca. 10 other: mg Carbon/L
- Based on:
- IC (inorganic carbon)
Parameter followed for biodegradation estimationopen allclose all
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Parameter followed for biodegradation estimation:
- inorg. C analysis
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
- Preliminary study:
- pre-solubility work was carried out. From the pre-study it was concluded that the best method of preparation was by dispersing the test item in the test system, with aid of high shear mixing.
- Test performance:
- test was valid.
IC content of test item was < 5% of the Total Carbon ( satisfied criteria)
The difference between the values for CO2 production was < 20% for replicate vessels
toxicty control attained 41% degradation after 14 days and 56% degradation after 28 days, thereby confirming test item was non toxic to sewage microbes used in study.
% Degradation
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- ca. 0
- Sampling time:
- 2 d
- Remarks on result:
- other:
Any other information on results incl. tables
table 2 attached shows the percentage biodegradation values for refeerence control, test item and combined.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The test item attained 0% degradation after 28 days, therefore cannot be considered to be ready biodegradable under the strict terms of the OECD 301B guideline
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