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EC number: 273-744-9 | CAS number: 69012-45-9 By-product produced in the rolling of copper wire either in a conventional rod mill or a continuous cast rod mill. Consists of metallic copper, cuprous oxide and cupric oxide.
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
The UVCB substance is an inorganic, complex metal containing material.
Intermediate B10 - Scale (coating), Copper
“Residue produced at high temperature by melting or treating at a high temperature metallic copper (metal, alloy, scrap). The intermediate consist mainly of copper metal and oxides from copper (I) or zinc. It may contain silicates. ”
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EC names |
Substance covered/synonym |
EC number/ EINECS No. |
CASNo. |
||
Scale (coating), copper* |
Copper Slag, from fabricators |
273-744-9 |
69012-45-9 |
||
Waste solids, copper-refinery* |
|
273-718-7 |
679012-18-6 |
||
Waste solids, copper-casting* |
|
273-717-1 |
69012-17-5 |
||
Copper, dross* |
Ball mill dust |
305-408-5 |
94551-59-4 |
||
Scale (coating), mill, copper* |
|
305-427-9 |
94551-81-2 |
|
At room temperature, the substance is a solid.
The majority of the available data on physical and chemical properties of the UVCB is taken from the report Liippo, et al, 2010 –a comprehensive study performed on the UVCB to characterize it (physico-chemical and mineralogical properties) in view of the upcoming REACH registrations of copper intermediates by the REACH Copper Consortium.
In particular, a comprehensive chemical and mineralogical characterization of representative samples was performed (and reported under IUCLID 4.23). The study from Liippo et al (Outotec Lab) furthermore includes thermo gravimetric /differential scanning calorimetric (TG/DSC) measurements (under Air flux and Nitrogen atmosphere) that allowed determining melting, oxidation and related thermal stability properties of the UVCB.
The Outotec study included: Chemical assays (Inductively coupled argon plasma optic emission spectrometer, sulfur and carbon analyzes, Measurement of amount of magnetic material), Granulometry, density and specific surface measurements, determination of melting and oxidation temperatures (Thermogravimetry / differential scanning calorimetry), Water solubility tests, Mineralogical characterization (X-ray Diffraction, Optical Microscopy, Scanning Electron Microscopy) and Mineral Quantification. Based on the tests results, the study furthermore includes expert judgements addressing flammable, self-ignition, explosive and oxidising properties of the materials.
The selection and collection of the representative samples was made based on expert knowledge and according to standardized sampling protocols developed by the REACH Copper Consortium, an industry joint-venture regrouping major manufacturing and importing companies of the UVCB substance. Details on the sampling approach and the representative samples are reported as supporting information in IUCLID 1.4 and 4.1.
For a number of physic chemical properties, a range of values are provided to cover the variability among representative samples, if appropriate. The relevant physico-chemical properties of the materials (as well as IUCLID sections) are summarised below:
Table 1: Summary of the results
ECI Comments / Remarks | IUCLID Section | Scale, slag-type material from Cu melting furnace, primary smelter (representative, homogenised) | Scale, slag-type material from Cu rolling mill (representative, homogenised) | scale, dross-type (site 2, fines, homogenized) | scale, dross-type (site 2, particles, homogenized) | scale , dross-type (site 3) | scale, dross-type (site 3) | |
Lab code | 09TT03840 | 09TT03897 | 10TT01448 | 10TT01449 | 10TT01565 | 10TT01635 | ||
State / Colour | 4.1 | Stable, Copper / Grey | Stable, Shiny reddish black | Stable, Greenish grey | Stable, Greenish grey | Stable, Shiny reddish black | Stable, Copper red black | |
Relative Density g/m3 | 4.4 | 4.71 | 5.57 | n.d. | n.d. | n.d. | n.d. | |
Specific surface area | 4.5 | 0.13 | n.a. | n.a. | n.a. | n.a. | n.a. | |
Granulometry, D50, µm | 4.5 | >5000 | 29 | n.d. | n.d. | n.d. | n.d. | |
Water solubility | 4.8 | poor (*) | poor (*) | n.d. | n.d. | n.d. | n.d. | |
Melting temperature,°C | 4.2 | n.d. | 1066 | n.d. | n.d. | n.d. | n.d. | |
Oxidation Temperature,°C | 4.15 | n.d. | 280 | n.d. | n.d. | n.d. | n.d. | |
Assays / Chemistry | 4.23 | See table | See table | See table | See table | See table | See table | |
Mineralogy | 4.23 | See table | See table | See table | See table | See table | See table | |
Flammability | 4.13 | No | No | No | No | No | No | |
Self-ignition | 4.12 | No | No | No | No | No | No | |
Explosive properties | 4.14 | No | No | No | No | No | No | |
Oxidizing properties | 4.15 | No | No | No | No | No | No | |
Relative Density, OECD 109; specific surface area, BET method; water solubility,OECD 105; melting and oxidation temperature TG/DSC analysis |
(*) Poor in preliminary test, with exceptions at high loading and shaking over long period.
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