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Diss Factsheets
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EC number: 238-778-0 | CAS number: 14726-36-4
- 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
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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:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-D (Determination of the "Ready" Biodegradability - Manometric Respirometry Test)
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, adapted
- Details on inoculum:
- inoculum consisti of mixed population of aquatic microorganisms (activated sludge). The origin is an aeration tank of a wastewater plant treating predominantly domestic sewage (Wupper Area water authority, STP Odenthal). The concentration of the inoculum is 30 mg/L. The sludge was washed twice by adding mineral medium and centrifuging for 10 min at 200 rpm and 20 °C and decanting off the supernatant. 1.014 g of the wet sludge was dried in order to determine the wet weight/dry weight ratio of the sludge and to prepare a stock suspension of 3g dw/L. The mineral medium consist of 10ml minearal salt solution (KH2PO4, K2HPO4, Na2HPO4 2H2O, NH4Cl) , 800 mL deionised water and 1ml of each of the magnesium sulphate-, calciumchloride- and the iron (III) chloride solution and filled up to 1 L with deionised water. The inoculum was stored at room temperature under continuous shaking with aeration until use for two days.
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 100 mg/L
- Based on:
- ThOD/L
- Parameter followed for biodegradation estimation:
- other: nitrite nitrogen and nitrate nitrogen
- Reference substance:
- benzoic acid, sodium salt
- Parameter:
- % degradation (O2 consumption)
- Value:
- 2
- Sampling time:
- 7 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 4
- Sampling time:
- 14 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 6
- Sampling time:
- 21 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 8
- Sampling time:
- 28 d
- Interpretation of results:
- not readily biodegradable
Reference
Description of key information
Zinc bis(dibenzyldithiocarbamate) is characterised as “not readily biodegradable”.
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
Additional information
A GLP-compliant OECD 301F (Manometric Respirometry Test) is available for zinc bis(dibenzyldithiocarbamate). After 28 days 8% degradation was observed (Currenta GmbH & Co., 2010d). Therefore, in the assessment zinc bis(dibenzyldithiocarbamate) is characterised as “not readily biodegradable”.
In view of the overall low, but steadily increasing degradation rate it is hypothesized that the categorisation of zinc bis(dibenzyldithiocarbamate) as “not readily biodegradable” is partly due to slow solution kinetics of this poorly soluble substance. This statement starts from the assumption that the dissolved part of organic substances is generally regarded to be available for biodegradation more easily than undissolved test item particles are.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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