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EC number: 235-384-0 | CAS number: 12207-63-5
- 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:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- yes
- Remarks:
- See "Principles of method if other than guideline"
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Deviations:
- yes
- Remarks:
- See "Principles of method if other than guideline"
- Principles of method if other than guideline:
- - Based on experience and in view of the poor solubility of other metal substances (e.g. metal carbonates), the test was conducted under exclusion of atmospheric carbon dioxide and oxygen.
- Two vessels were set up in a parallel design at 20°C ± 1.0°C. Each vessel was sampled several times instead of sampling one vessel at every point in time. This modification helped to avoid weighing errors and enabled sampling up to 8 times. - GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed, 2007-03-21
- Type of method:
- flask method
- Water solubility:
- 180 mg/L
- Conc. based on:
- test mat. (dissolved fraction)
- Loading of aqueous phase:
- 2 g/L
- Incubation duration:
- 72 h
- Temp.:
- 20 °C
- pH:
- 3.9
- Remarks on result:
- other: mean dissolved ammonium trivanadium octaoxide
- Water solubility:
- 94.9 mg/L
- Conc. based on:
- element (dissolved fraction)
- Remarks:
- Vanadium
- Loading of aqueous phase:
- 2 g/L
- Incubation duration:
- 72 h
- Temp.:
- 20 °C
- pH:
- 3.9
- Remarks on result:
- other: mean dissolved vanadium
- Details on results:
- Under the conditions of this test (under exclusion of CO2 and O2 under argon gas; flask method; loading of 2 g/L), the water solubility of ammonium trivanadium octaoxide at 20.0 ± 0.5°C was determined at 180 ± 3.2 mg/L after 72 h (dissolved V measured by ICP-OES, separated by filtration (0.2 µm) and subsequent centrifugation from undissolved test material). The resulting solution pH was measured to be approx. 3.9.
- Conclusions:
- Under the conditions of this test (under exclusion of CO2 and O2 under argon gas; flask method; loading of 2 g/L), the water solubility of ammonium trivanadium octaoxide at 20.0 ± 0.5 °C was determined at 180 ± 3.2 mg/L after 72 h (dissolved V measured by ICP-OES, separated by filtration (0.2 µm) and subsequent centrifugation from undissolved test material). The resulting solution pH was measured to be approx. 3.9. Hence, ammonium trivanadium octaoxide may considered as moderately soluble (100-1000 mg/L).
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- supporting 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
- Water solubility:
- 260 mg/L
- Temp.:
- 20 °C
- pH:
- 4
- Conclusions:
- Interpretation of results: moderately soluble (100-1000 mg/L)
The test item has a water solubility of 260 mg/L at 20°C and pH 4.0.
Referenceopen allclose all
Method validation
Validation parameter | results | comment |
selectivity | similar data with two different wavelength for ICP-OES method | no interferences observed |
linearity | applied calibration functions were linear | correlation coefficient (r) at least 0.9999 |
limits of detection (LOD) | 6.5 - 17 µg/L | |
limits of quantification (LOQ) | 22 - 56 µg/L | |
blanks | at least below < LOQ = < 22 - < 56 µg/L; | |
accuracy and precision | mean recovery for TMDA-70: 104 ± 2.7 % (n = 28) |
corresponds to low concentration range of samples (312 µg/L) |
accuracy and precision | mean recovery for quality control standard: 99.0 ± 1.7 % (n = 14) |
corresponds to concentration range of diluted samples (500 µg/L) |
accuracy and precision | mean recovery for recalibration: 101 ± 0.8 % (n = 9) |
corresponds to concentration range of diluted samples (500 µg/L) |
repeatability | recovery from fortification of samples: 106 -111 % (n = 4) | corresponds to concentration range of diluted samples |
reproducibility | recovery for TMDA-70: 104 ± 2.7 % (n = 28) |
for concentration range of diluted samples (312 µg/L) |
reproducibility | recovery for quality control standard: 99.0 ± 1.7 % (n = 14) |
for concentration range of diluted samples (CPI standard diluted to 100 µg/L V) |
reproducibility | recovery for recalibration standard 100 µg/L: 101 ± 0.8 % (n = 9) |
for concentration range of diluted samples |
Measured vanadium concentrations in test samples
stirring time [h] | dilution | mean V conc. vessel A [µg/L] | mean V conc. vessel B [µg/L] | mean V conc.[µg/L] | variation [%] |
24 | 1:40 | 81.9 ± 0.2 | 82.2 ± 0.3 | 82.3 ± 0.5 | |
48 | 1:40 | 86.8 ± 0.12 | 89.6 ± 0.2 | 88.2 ± 2.0 | + 7.20 |
72 | 1:40 | 97.0 ± 0.5* | 94.3 ± 0.4* | 95.7 ± 1.9 | + 8.44 |
96 | 1:40 | 95.1 ± 0.2* | 93.0 ± 0.3* | 94.0 ± 1.5 | - 1.71 |
*values used for the calculation of the water solubility of the test item
Description of key information
The water solubility of ammonium trivanadium octaoxide is in the range of 180 and 260 mg/L
Key value for chemical safety assessment
- Water solubility:
- 180 mg/L
- at the temperature of:
- 20 °C
Additional information
Klawonn, 2010:
Water solubility of ammonium trivanadium octaoxide under O2 and CO2 exclusion, loading of approx. 2 g/L: 180 ± 3.2 mg/L after 72 h at 20 °C (pH 3.9).
Seagrave, Julien 2012:
Ammonium trivanadium octaoxide has a water solubility of 260 mg/L at 20 °C and pH 4.0.
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