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EC number: 266-970-4 | CAS number: 67711-94-8 Mainly copper, copper oxides, some oxides of lead and minor metals, skimmed from the anode furnace and returned to the converter.
- 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
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: No GLP study but other quality assurance
Cross-reference
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- no
- Type of method:
- thermal analysis
Test material
- Reference substance name:
- Slag, copper refining
- IUPAC Name:
- Slag, copper refining
- Details on test material:
- Sample collection made according to ECI/REACH Copper Consortium Standards Protocols (see IUCLID section 1.4)
Sample Description Sample Code Lab code
B8 copper-rich slag from Secondary smelter MC_B8_531_xxx_0904 09TT03335
B8 Cu-rich slag, from slag concentrator, primary smelter (representative, homogenized) slag concentrate 09TT03987
B8 Cu-rich slag from FSF, primary smelter (representative, homogenized) slag from FSF, primary smelter 09TT05248
B8 Cu-rich slag from anode furnace, primary smelter (representative, homogenized) slag from anode furnace 09TT05247
Constituent 1
Results and discussion
Melting / freezing pointopen allclose all
- Melting / freezing pt.:
- 738 °C
- Remarks on result:
- other: 09TT03335
- Melting / freezing pt.:
- 1 044 °C
- Remarks on result:
- other: 09TT05247
- Melting / freezing pt.:
- 1 051 °C
- Remarks on result:
- other: 09TT05248
Any other information on results incl. tables
During the melting tests of thefour (4) slag samples were heated in Al2O3crucible using nitrogen atmosphere. Based on the TG/DSC measurements, the melting and decomposition of the slags 09TT03335, 09TT05247 and 09TT05248 start at 738oC, 1044 °C and 1051°C and these materials are completely oxidized.
09TT03335, Slag recycled
The endothermic peaks in the curve are at the temperature ranges 738 – 844 °C, 873 – 1026 °C and 1179 – 1357 °C. The mass of the sample starts to decrease, when temperature has increased higher than 900 °C. The first peak indicates melting of some components of the sample (perhaps lead or tin components), but when temperature is higher than 900 °C also decomposition and evaporation takes place, because the mass of the sample decreases.
09TT03987, Slag concentrate
The endothermic peak in the curve is at the temperature range 1102 – 1121 °C. The mass of the sample starts to decrease at the temperature ~750 °C, which indicates decomposition of some sulphides. Melting starts at 1102 – 1121 °C.
09TT05247, Anode furnace slag
The endothermic peaks in the curve are at the temperature ranges 1044 – 1082 °C and 1143 – 1191 °C. The first peak indicates melting, because the mass of the sample does not change. The second peak indicates decomposition and evaporation, because the mass of the sample starts to decrease.
09TT05248, Flash smelting slag
The endothermic peak in the curve is at the temperature range 1051 – 1129 °C and at the same time the mass of the sample starts to decrease, which means, that melting starts, but some components also decompose or evaporate.
Applicant's summary and conclusion
- Executive summary:
Based on the TG/DSC measurements, the melting and decomposition of the slags 09TT03335, 09TT05247 and 09TT05248 start at 738oC, 1044 °C and 1051°C and these materials are completely oxidized.
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