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EC number: 293-314-4 | CAS number: 91053-49-5 Insoluble substance obtained during dissolution of zinc ores or concentrate in sulfuric acid for the production of zinc sulfate solutions after physical separation such as flotation and filtration.
- 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
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- GLP compliance:
- not specified
- Type of method:
- flask method
- Remarks on result:
- not determinable because of methodological limitations
- Remarks:
- Water solubility meant for pure substances
- Details on results:
- See table below
- Conclusions:
- Interpretation of results: insoluble (< 0.1 mg/L)
test done according to standard protocol. However, the solubility of the substance reflects the solubility of the pregnant liquor as the substance is considered insoluble. Moreover, occurence of small particles in the solution cannot be avoided which in turn may have an influence on the test result. - Executive summary:
Solubility of the substance was determined according to standard protocol. The sample did not indicate high solubility in the preliminary test. In the actual flask test the average solubilities of S and Zn were 1.14 and 1.67 g/L, respectively.
Reference
Experimentally determined average water solubility for the sample
|
|
Average or range |
Measurement |
Unit |
|
pH |
|
7.16 – 7.46 |
ICP Al |
mg/l |
<0.2 |
ICP As |
mg/l |
<0.2 |
ICP Ba |
mg/l |
<0.2 |
ICP Bi |
mg/l |
<0.2 |
ICP Ca |
mg/l |
11 |
ICP Cd |
mg/l |
947 |
ICP Cu |
mg/l |
<0.1 |
ICP Fe |
mg/l |
<0.2 |
ICP Hg |
mg/l |
<0.2 |
ICP K |
mg/l |
<2 |
ICP Mg |
mg/l |
306 |
ICP Mn |
mg/l |
52 |
ICP Na |
mg/l |
26 |
ICP Ni |
mg/l |
0.6 |
ICP Pb |
mg/l |
<0.2 |
ICP S |
mg/l |
752 |
ICP Sb |
mg/l |
<0.2 |
ICP Se |
mg/l |
<0.2 |
ICP Si |
mg/l |
1.3 |
ICP Sn |
mg/l |
<0.2 |
ICP Ti |
mg/l |
<0.2 |
ICP Zn |
mg/l |
5.9 |
Description of key information
The flask test indicates a solubility in the g/l range for S and Zn.
However, the solubility of the substance reflects the solubility of the pregnant liquor as the substance is considered insoluble. Moreover, occurence of small particles in the solution cannot be avoided which in turn may have an influence on the test result.
Key value for chemical safety assessment
Additional information
Various types of leach residues were analyzed. They display differences in phys-chem. properties depending on their chemical composition. The most representative leach residue was used.
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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