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EC number: 266-967-8 | CAS number: 67711-91-5 Product of smelting roaster calcines concentrates or cement copper with flux in reverberatory or electric furnaces. Composed primarily of copper and copper, iron and lead sulfides with minor sulfides of other metals.
- 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
Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: in accordance to OECD
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
Materials and methods
- Principles of method if other than guideline:
- The report aims to describe the transformation/dissolution behaviour of copper intermediates through an experimental design that follows the recommendations of the OECD guidance document on transformation/dissolution (T/D) (OECD 2001) and the standard operating procedures (SOP) proposed by CANMET and LISEC for the Transformation / Dissolution protocol to the ad hoc OECD Validation Management Group (VMG) . The developed procedures, called SOP, provide a detailed methodology for T/D that includes instrumentation requirements, reagents quality, procedures for the seven-day and 28-days full test, chemical analyses and a quality assurance program (QA/QC standards). The experimental procedure followed by CIMM can be found in annex I of the study report.
The results of T/D tests can be compared with the eco-toxicity reference values to establish the aquatic hazard classification of the tested substance. - GLP compliance:
- no
- Remarks:
- other quality assurance
- Type of study / information:
- In accordance to CLP guidance - chapter IV. The metal concentrations released during the transformation/dissolution test are compared to the EC50s of the soluble metal ions. Toxicity is derived through the application of mixture toxicity rules, assuming additivity
Test material
- Reference substance name:
- Matte, copper
- EC Number:
- 266-967-8
- EC Name:
- Matte, copper
- Cas Number:
- 67711-91-5
- IUPAC Name:
- matte, copper
- Test material form:
- other: Sieved 0.8 to 2.4 mm fraction
- Details on test material:
- Sample collection made according to ECI/REACH Copper Consortium Standards Protocols (see IUCLID section 1.4 and 4.1 attachment)
Sample description Sample Code Lab Code
B2 Matte, Flash furnace type (composite from grinded material) AC_B2_625559 09TT02788
B2 Matte, Electric furnace type (composite from grinded material) AC_B2_625208 09TT02787
Constituent 1
Results and discussion
Any other information on results incl. tables
The copper intermediates B2, slags, copper-refining, is a complex metal containing material with relatively high amounts of copper oxides, and various amounts of other non-ferrous metals oxides. For such a material, the rate and extend of the metals release is critical to its environmental classification.
Transformation/dissolution tests of a B2 copper intermediate was carried out to study its potential to release metals to the environment, in the context of the EU classification and labeling and REACH regulations.
Considering the heterogeneity and composition of this complex material, a transformation / dissolution test was performed for 7 days at pH 6 and a loading of 100 mg/L. Following the transformation/dissolution, a broad range of metals releases are considered (table 1).
The results of the 7 days test for the samples 2787 and 2788 (identified as B2), with a range of particle size between 0.8 – 2.4 mm, showed a copper release to the OECD media of 30.0 and 29.7mg/L, respectively, and a lead release of 4.6 and 3.9mg/L, respectively.
Additional measurements of DOC and hardness in the transformation / dissolution media at the end of the seven day tests, showed organic carbon concentration below the detection limit of the instrument (0.2 mg/L), and no significant contribution of the samples to the hardness of the OECD media.
Table 1. Summary of metals released for the B2 sample after 7 days of transformation/dissolution test, 100 mg/L loading and pH 6. Metal releases were calculated as the difference between the mean sample release and the mean blanks release at 168 hours.= Below Detection Limit; SD= Standard Deviation.
Metal |
2787 (particle size 0.8 – 2.4 mm) |
2788 (particle size 0.8 – 2.4 mm) |
||
7 days – 100 mg/L |
Mean |
SD |
Mean |
SD |
Copper, mg/L |
30.0 |
2.49 |
29.7 |
8.99 |
Nickel, mg/L |
BDL |
- |
BDL |
- |
Arsenic, mg/L |
BDL |
- |
BDL |
- |
Lead, mg/L |
4.6 |
0.40 |
3.9 |
0.83 |
Zinc, mg/L |
BDL |
- |
BDL |
- |
Aluminium, mg/L |
BDL |
- |
BDL |
- |
Cobalt,mg/L |
BDL |
- |
BDL |
- |
Molybdenum, mg/L |
BDL |
- |
BDL |
- |
Barium, mg/L |
BDL |
- |
BDL |
- |
Strontium, mg/L |
BDL |
- |
BDL |
- |
Chromium,mg/L |
BDL |
- |
BDL |
- |
Iron,mg/L |
BDL |
- |
BDL |
- |
Manganese, mg/L |
BDL |
- |
BDL |
- |
Selenium, mg/L |
BDL |
- |
BDL |
- |
Cadmium, mg/L |
BDL |
- |
BDL |
- |
Silver,mg/L |
BDL |
- |
BDL |
- |
Tellurium,mg/L |
BDL |
- |
BDL |
- |
Tin,mg/L |
BDL |
- |
BDL |
- |
Antimony,mg/L |
BDL |
- |
BDL |
- |
Silicon,mg/L |
BDL |
- |
BDL |
- |
Applicant's summary and conclusion
- Conclusions:
- Good quality study and data are critical to the assessment of the environmental hazards of the intermediate
- Executive summary:
Transformation/dissolution tests of B2 copper matte (two representative samples) , were carried out to study its potential to release metals to the environment, in the context of the EU classification and labeling and REACH regulations.
Considering the composition of this complex material, a transformation / dissolution test was performed for 7 days at pH 6 and a loading of 100 mg/L, following the release of a broad range of metals from the samples. The results of the 7 days test for the samples 2787 and 2788 (identified as B2 Electric furnace and Flash furnace matte, respectively), with a range of particle size between 0.8 – 2.4 mm, showed a copper release to the OECD media of 30.0 and 29.7mg/L, respectively, and a lead release of 4.6 and 3.9mg/L, respectively and no releases of other metals
Chemical composition (% metal X in UVCB, see IUCLID 4.23) is required to convert these µg/l values into % release from total amount Metal X present -in view of integration into automatic calculation tool.
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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