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Diss Factsheets
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EC number: 936-276-2 | CAS number: -
- 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
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The study was conducted by the manufacturer. No full test report available.
Cross-reference
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The pH-values was determined from the washed Ag-concentrate suspension. The suspension was done with deionised water. The pH was measured by using the eletrode and the pH-sheet. The washing of concentrate was done by using 1 litre and 2 litre of deionised water. The liquid to solid ratio was 5:1.
Test material
- Reference substance name:
- Concentrates of lead and zinc compounds with sulfur resulting from hydrometallurgy (hot acid leaching, super-hot acid leaching and flotation)
- IUPAC Name:
- Concentrates of lead and zinc compounds with sulfur resulting from hydrometallurgy (hot acid leaching, super-hot acid leaching and flotation)
- Reference substance name:
- λ²-lead(2+) sulfanylidenezinc sulfur sulfate
- EC Number:
- 936-276-2
- Molecular formula:
- Not applicable
- IUPAC Name:
- λ²-lead(2+) sulfanylidenezinc sulfur sulfate
- Details on test material:
- - Name of test material (as cited in study report): Ag-concentrate
Constituent 1
Constituent 2
Results and discussion
pH valueopen allclose all
- pH value:
- 4
- Temp.:
- 22 °C
- Remarks on result:
- other: Concentration not reported (liquid to solid ratio 5:1). Washed concentrate with 1 litre of deionised water.
- pH value:
- 4
- Temp.:
- 22 °C
- Remarks on result:
- other: Test conc. not reported (liquid to solid ratio 5:1). Washed with 2 litre of deionised water.
Applicant's summary and conclusion
- Conclusions:
- The pH of the concentrate is acidic after washing with five times greater amount of water in relation to the solid content. After proper washing the pH remains at pH level of 4. The pH of the eluate after the 24-h leaching study (EN-12457-2) conducted for washed substance was also acidic (pH 3.7).
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