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EC number: 618-920-1 | CAS number: 93280-40-1
- 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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Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The lowest chronic NOEC, 560 µg V/L, was observed in a 14-week chronic study on the effect of NaVO3 on ephippia production by Daphnia magna (Van Der Hoeven, 1990; Klimisch 2).
Corrected for the molecular weight of vanadylhydrogenphosphate-hemihydrate (CAS no. 93280-40-1): 14-week NOEC = 1905 µg/L
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 1 905 µg/L
Additional information
Data on the long-term toxicity of vanadylhydrogenphosphate-hemihydrate (CAS no. 93280-40-1) to aquatic invertebrates are not available; therefore, a read-across approach to structurally similar pentavalent vanadium substances was performed.
A study on the population dynamics by Van der Hoeven (1990) was selected as key study. The number and size of Daphnia magna as well as the production of ephippia were observed over a period of 14 weeks. The test system was running under flow-through conditions (test solution including algae and yeast as nutrition for the test animals). The test was performed in duplicate with 10 animals in total at test start. The photoperiod was 14 h light / 10 h dark. The test concentrations were not analytically verified. Population peaks were observed in the controls and the test solutions. Low concentrations of sodium metavanadate (CAS 13718-26-8) rendered population peaks less regular. Sodium metavanadate promoted the formation of ephippia (NOEC = 560 µg/L V). The supporting study was a reproduction study with Daphnia magna according to 84/449/EEC which is similar to the current OECD 211 guideline (Beusen & Neven, 1987). The test substance was also sodium metavanadate (CAS 13718-26-8).The test concentrations were analytically verified. The measured concentrations were within 10% of nominal concentrations. The test was performed under semi-static conditions. The 23-d MATC (= maximum acceptable toxicant concentration) was 1900 µg/L V (nominal), which was converted to a NOEC of 1344 µg/L V (NOEC = MATC/sqrt(2)).
A further long-term toxicity study with divanadium pentaoxide (CAS 1314-62-1; Kimball, 1978) as test substance was disregarded as there was evidence in the raw data that the general health condition of all test species (incl. control organism) was decreasing with time (lower survival, reproduction).
For the assessment of the toxicity of vanadylhydrogenphosphate-hemihydrate (CAS no. 93280-40-1), the effect value based on the vanadium concentration must be corrected for the molecular weight of vanadylhydrogenphosphate-hemihydrate (29.4% V). The corrected 14 -wk NOEC is 1905 µg/L (= 560 µg V/L).
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