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EC number: 248-652-7 | CAS number: 27774-13-6
- 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:
- transformation / dissolution of metals and inorganic metal compounds
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2011-05-19 to 2011-08-01
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Series on Testing and Assessment No. 29 (23-Jul-2001): Guidance document on transformation/dissolution of metals and metal compounds in aqueous media
- Version / remarks:
- 2001
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed on 2011-02-07
- Type of method:
- flask method
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 303 µg/L
- Element analysed:
- Vanadium
- Loading of aqueous phase:
- 1 other: mg test item/L
- Incubation duration:
- 1 d
- Test conditions:
- pH 6.0, 21.0 °C
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 305 µg/L
- Element analysed:
- Vanadium
- Loading of aqueous phase:
- 1 other: mg test item/L
- Incubation duration:
- 1 d
- Test conditions:
- pH 8.0, 21.0 °C
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 212 µg/L
- Element analysed:
- Vanadium
- Loading of aqueous phase:
- 1 other: mg test item/L
- Incubation duration:
- 28 d
- Test conditions:
- pH 6.0, 21.0 °C
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 211 µg/L
- Element analysed:
- Vanadium
- Loading of aqueous phase:
- 1 other: mg test item/L
- Incubation duration:
- 28 d
- Test conditions:
- pH 8.0, 21.0 °C
- Details on results:
- Under the described conditions of this test with vanadium oxide sulphate at a loading of 1 mg/L, dissolved vanadium concentrations after 28 days were 211 ± 6 μg/L and 212 ± 2 μg/L at pH 8 and pH 6, respectively. Measured concentrations indicate a complete dissolution of the test item in both media. Over the course of the test only pentavalent vanadium species were detectable.
Vanadium oxide sulphate was completely dissolved after 2 hours in both media (pH 6 & pH 8). The decrease of measured vanadium concentrations over time is due to dilution, i.e. removal of vanadium by sampling and replacing the sampled test media (i.e., 150 ml fresh media after 24h and respectively 50 mL at every subsequent sampling) in accordance with the guidance document. Normalizing dissolved V concentrations for vanadium removed by sampling indicates
that at any sampling time, all vanadium in the test vessels was completely dissolved. Recovery of total dissolved vanadium when expressed as the sum of measured dissolved tetra- and pentavalent vanadium species ranged from 76.9 to 121%.
The within and between vessel variation, the variation of mean V concentrations
between sampling intervals as well as pH, temperatures and oxygen levels meet the requirements of the OECD-Guidance document 29. Therefore the OECD 29 is regarded to be fulfilled. - Conclusions:
- Under the described conditions of this test with vanadium oxide sulphate at a loading of 1 mg/L, dissolved vanadium concentrations after 28 days were 211 ± 6 μg/L and 212 ± 2 μg/L at pH 8 and pH 6, respectively. Measured concentrations indicate a complete dissolution of the test item in both media. Over the course of the test only pentavalent vanadium species were detectable.
Vanadium oxide sulphate was completely dissolved after 2 hours in both media (pH 6 & pH 8). - Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2010-09-01 to 2011-10-28
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7840 (Water Solubility)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- flask method
- Water solubility:
- 467 g/L
- Conc. based on:
- test mat. (total fraction)
- Incubation duration:
- <= 72 h
- Temp.:
- 20 °C
- pH:
- >= 0.81 - <= 1.07
- Conclusions:
- Interpretation of results: very soluble (> 10000 mg/L)
Vanadium oxide sulphate has a water solubility of 467 g/L at 20 °C and pH 0.81 - 1.07.
Referenceopen allclose all
Description of key information
- Water solubility: 457.0 g/L
- Transformation dissolution: 211 ± 6 μg/L and 212 ± 2 μg/L at pH 8 and pH 6 after 28 days
Key value for chemical safety assessment
- Water solubility:
- 467 g/L
- at the temperature of:
- 20 °C
Additional information
Seagrave, Julien, 2012:
The water solubility of Vanadium oxide sulphate is 467 g/L at 20 °C with a pH 0.81 - 1.07.
Klawonn, 2011:
In a transformation dissolution test with vanadium oxide sulphate at a loading of 1 mg/L, dissolved vanadium concentrations after 28 days were 211 ± 6 μg/L and 212 ± 2 μg/L at pH 8 and pH 6, respectively. Measured concentrations indicate a complete dissolution of the test item in both media. Over the course of the test only pentavalent vanadium species were detectable. Vanadium oxide sulphate was completely dissolved after 2 hours in both media (pH 6 & pH 8).
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