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EC number: 244-842-9 | CAS number: 22205-45-4
- 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
Water solubility
Administrative data
- Endpoint:
- transformation / dissolution of metals and inorganic metal compounds
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
- Principles of method if other than guideline:
- The report aims to describe the 28 days Transformation/Dissolution (T/D) behavior of dicopper sulphide at pH 6. The results of T/D protocol can be used to compare with the existing eco-toxicity reference values to establish the aquatic hazard classification of the tested substances.
- Type of method:
- flask method
Test material
- Reference substance name:
- Dicopper sulphide
- EC Number:
- 244-842-9
- EC Name:
- Dicopper sulphide
- Cas Number:
- 22205-45-4
- Molecular formula:
- Cu2S
- IUPAC Name:
- Copper(I) sulphide
Constituent 1
Results and discussion
Solubility of metal ions in aqueous mediaopen allclose all
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 41.1 µg/L
- Element analysed:
- Copper
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH 6
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 83.9 µg/L
- Element analysed:
- Copper
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH 6
- Details on results:
- The solubility values as copper for 7 (Acute) and 28 days (Chronic) T/D tests are as follows:
7days mean: 41.1 µg/L (Coefficient of Variation 12%).
28 days mean: 83.9 µg/L (Coefficient of Variation 7%).
Any other information on results incl. tables
Detailed results obtained for the period 0 - 28 days are shown in attached Table 1 and Figure 1.
Applicant's summary and conclusion
- Conclusions:
- The mean solubility values as copper for 7 (Acute) and 28 days (Chronic) T/D tests were 41.1 µg/L an d 83.9 µg/L, respectively. This is equivalent to daily release rates of 2.37 and 2.09 µg/L.
- Executive summary:
A twenty-eight day chronic transformation/dissolution test was performed at pH 6 in OECD medium using 1 mg/L sample loading. Three replicate vessels were set up for the test material and one vessel for a
blank. Replicate samples vere taken in triplicte from each vessel at predeterined times and analysed for copper content.at the following pre-determined times: 0, 2, 6, 24, 48, 96, 168, 336, 504 and 672 hours.
The mean solubility value as copper for 7 days (Acute) was 41.1 µg/L. This is equivalent to a daily release rates of 2.37 µg/L.
The mean solubility value as copper for 28 days (Chronic) was 83.9 µg/L. This is equivalent to a daily release rate of 2.09 µg/L.
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