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EC number: 932-275-6 | CAS number: 91722-10-0
- 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
Monitoring data
Administrative data
- Endpoint:
- monitoring data
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2005-2007
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Basic data given. Preliminary report on ongoing work. Study acceptable for assessment
Data source
Reference
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 2 007
Materials and methods
- Principles of method if other than guideline:
- For the construction of unbound rural road sections, natural rock and slags were used. The leachate was collected. For comparison, leaching experiments were preformed in the laboratory using 2 types of lysimeters.
(Dust immissions in the vicinity of the site were tried to monitor with Bergerhoff samplers but no data are reported) - GLP compliance:
- no
- Type of measurement:
- other: measuring at test site
- Media:
- other: leachate of test road
Test material
- Reference substance name:
- Slags, steelmaking, elec. furnace (carbon steel production - EAF C)
- IUPAC Name:
- Slags, steelmaking, elec. furnace (carbon steel production - EAF C)
- Reference substance name:
- Slags, steelmaking, elec. furnace
- EC Number:
- 294-410-9
- EC Name:
- Slags, steelmaking, elec. furnace
- Cas Number:
- 91722-10-0
- Molecular formula:
- not applicable
- IUPAC Name:
- 294-410-9
- Reference substance name:
- Slags, steelmaking
- EC Number:
- 266-004-1
- EC Name:
- Slags, steelmaking
- Cas Number:
- 65996-71-6
- Molecular formula:
- ~ Al(n)Ca(m)Fe(o)Mg(p)Si(q)O(3n/2+m+o+p+2q)
- IUPAC Name:
- Aluminium-Calcium- Iron-Magnesium-Silicium oxide equivalent
- Details on test material:
- 4 materials tested in laboratory lysimeter experiments:
Slags, steelmaking, elec. furnace (carbon steel production - EAF C)
Slags, steelmaking (ladle slag)
Mixture (1:1) of EAF C and SMS
Granite (natural stone)
Field study with rural unbound road (Oberkirch, Germany):
Surface layer (10 cm): EAF C/SMS mixture 1:1, 0-16 mm grain size
Road base (40 cm):
Section 1: granite 0-32 mm
Section 2: EAF C 0-32 mm
Constituent 1
Constituent 2
Constituent 3
Results and discussion
Concentrationopen allclose all
- Country:
- Germany
- Location:
- Oberkirch
- Substance or metabolite:
- other: Vanadium
- Conc.:
- ca. 0 - 0.02 mg/L
- Remarks on result:
- other: Vanadium in collection device under rural slag road (EAF C, SMS) during the first 14 months of 2 years leaching period. No data reported on pH and temperature.
- Country:
- Germany
- Location:
- Oberkirch
- Substance or metabolite:
- other: Vanadium
- Conc.:
- ca. 0.03 - ca. 0.1 mg/L
- Remarks on result:
- other: Vanadium in collection device under rural slag road (EAF C, SMS) during the 17th and 23rd months of 2 years leaching period. No data reported on pH and temperature.
- Details on results:
- no pH difference between leachates of road made from natural stones and road of slags detected in suction cups
Any other information on results incl. tables
Difference between lysimeter results and rural road are suggested to be related to varying amounts and grain sizes of materials, different compaction, different L/S ratios, different leachants and different irrigation Low leaching rates observed for the rural road were explained by the influence of the absorption capacity of the soil surrounding the collection devices.
Applicant's summary and conclusion
- Conclusions:
- Under environmental conditions, release of heavy metals (as demostrated with V), from slags, steelmaking, elec. furnace, carbon steel production (EAF C), and slags, steelmaking (SMS), is negligible.
- Executive summary:
To prove that no environmentally relevant amounts of heavy metals are released from unbound slag roads, a rural road was constructed from a mixture of EAF C/SMS 1/1 (surface layer 10 cm) upon a road base (40 cm) of granite or EAF C. Under the road there were collection devices for leachates.
Vanadium concentration was very low (<= 0.01 mg/L) in the EAF C road section leachates for the first 14 months, but varied up to 0.1 mg/L in the 17th to 23rd month of road construction.
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