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Diss Factsheets
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EC number: 231-780-2 | CAS number: 7727-18-6
- 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
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Toxicity to terrestrial plants
Administrative data
- Endpoint:
- toxicity to terrestrial plants: long-term
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study not performed according GLP, but well described and is close to the OECD 208 guideline
Data source
Reference
- Reference Type:
- publication
- Title:
- Effect of vanadium on the growth of soybean seedlings
- Author:
- JF. Wang and Z. Liu
- Year:
- 1 999
- Bibliographic source:
- Plant and Soil 216: 47-51
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- effects of vanadium were observed on the growth of soybean seedlings (after 45 days) and on adsorption, in two different soils
- GLP compliance:
- no
Test material
- Reference substance name:
- V salt
- IUPAC Name:
- V salt
- Test material form:
- not specified
- Details on test material:
- no detail given
Constituent 1
Sampling and analysis
- Analytical monitoring:
- not specified
- Details on sampling:
- The seedlings were harvested at 45 days after sowing, then dried, weighed, digested with HNO3-HClO4 and analysed for concentration in V and Mo.
Test substrate
- Vehicle:
- no
- Details on preparation and application of test substrate:
- seven vanadium concentrations were applied before potting and mixed carefully with the soils.
Test organisms
- Species:
- Glycine max (G. soja)
- Plant group:
- Dicotyledonae (dicots)
Study design
- Test type:
- early seedling growth toxicity test
- Study type:
- laboratory study
- Substrate type:
- natural soil
- Limit test:
- no
- Total exposure duration:
- 45 d
Test conditions
- Details on test conditions:
- material: glasshouse experiment in pots containing 4 kg of soil, four seedlings per pot and each was replicated 3 times.
Soil samples:
- surface (depth 0-20 cm)
- air-dried and sieved to 2 mm.
1) fluvo-aquic soil (from Fenqiu County, Henan Province, China):
- pH = 8.2
- Organic matter = 7.2 g/kg
- clay = 200 g/kg
- total vanadium = 66.7 mg V/kg dw
2) red earth (Oxisol, derived from Q3 red sandstone, collected from Yingtan County, Jiangxi Province, China):
- pH = 5.8
- Organic matter = 12 g/kg
- clay = 320 g/kg
- total vanadium = 35 mg V/kg dw
Each pot was placed on a plastic saucer and watering with 400 mL deionized waters per day. - Nominal and measured concentrations:
- nominal: 0, 5, 10, 15, 30, 50 and 75 mg V/kg soil
- Reference substance (positive control):
- no
Results and discussion
Effect concentrationsopen allclose all
- Species:
- Glycine max (G. soja)
- Duration:
- 45 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 30 mg/kg soil dw
- Nominal / measured:
- not specified
- Conc. based on:
- element
- Remarks:
- vanadium
- Basis for effect:
- other: shoot and roots dry matter yield
- Remarks on result:
- other: in fluvo-aquic soil, result for added vanadium
- Species:
- Glycine max (G. soja)
- Duration:
- 45 d
- Dose descriptor:
- NOEC
- Effect conc.:
- >= 75 mg/kg soil dw
- Nominal / measured:
- not specified
- Conc. based on:
- element
- Remarks:
- vanadium
- Basis for effect:
- other: roots and shoots dry matter yield
- Remarks on result:
- other: in red earth soil, result for added vanadium
- Details on results:
- Effects on vanadium on the growth of soybean seedlings were dependant on the soil type.
In fluvo-aquic soil, when V concentration exceeded 30 mg/kg added vanadium, the growth of seedlings were stunted with yellow and withered foliage, the roots were short and showing signs of senescence.
In the Oxisol, the growth of seedlings appeared normal at all levels. - Reported statistics and error estimates:
- Least Significance Difference (LSD) determined at 1 and 5%
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Executive summary:
Effects on vanadium on the growth of soybean seedlings were studied in two soils during 45 days.
These effects were shown to be dependant on the soil type:
In fluvo-aquic soil, when V concentration exceeded 30 mg/kg added vanadium, the growth of seedlings were stunted with yellow and withered foliage, the roots were short and showing signs of senescence. The derived NOEC for this type of soil is found to be 97 mg/kg soil dw (67 mg V baseground in the soil+ 30 mg added).
The RIVM, in report 601501029/2005 ; Environmental Risk Limits for Nine Trace Elements, recalculated the EC10, after fitting a logistic through the data using a non linear regression. This EC10 was found to be 25 mg added vanadium / kg soil dw.
In the Oxisol, the growth of seedlings appeared normal at all levels.
At pH 5 -9, the Oxisol had a higher adsorption capacity (large amount of Fe and total Mn, resulting in different complexes) than fluvo-aquic soil had. The authors concluded that might explain the differences of vanadium bioavailabilty and then toxicity in the two different soils.
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