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Diss Factsheets
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EC number: 888-364-4 | CAS number: 146569-48-4
- 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
Adsorption / desorption
Administrative data
- Endpoint:
- adsorption / desorption: screening
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- other:
- Justification for type of information:
- Adsorption / Desorption using a Batch Equilibrium Method according to the Guideline OECD106
The batch equilibrium method uses soil suspensions in 0.01 M calcium chloride spiked with a chemical to investigate its adsorption and desorption behavior. Soils differing e. g. in the organic carbon content, clay content, soil texture and pH will be used for this purpose to evaluate the impact of the soil properties on the adsorption and desorption behavior of a chemical. The soil suspensions are agitated by an appropriate device (e. g. horizontal shaker) for a defined period and the distribution of the chemical between the aqueous phase and soil is determined by chemical analysis for the deduction of the study endpoints.
Suitability of the Guideline OECD106 for the Determination of the Adsorption / Desorption Behavior of MoVTeNbO-Mixed Oxide
The solubility of MoVTeNbO-Mixed Oxide in ultrapure water and 0.01 M calcium chloride has been investigated by determination ob the molybdenum conentration in water.
Method
Preparation
2mL ultrapure water respectively 0.01 M calcium chloride were added to 2.5 mg MoVTeNbO-Mixed Oxide in a 4mL glas vial. The nominal concentration was 1.25 g test item / L or 524 mg Mo / L for the saturated solution. After 1 week the Molybdän-content was determined.
Analytical Method
Analytical quantification of the test item was carried out via photometer. A standard test kit provided by Macherey-Nagel with a quantification range from 1.0 to 40.0 mg Mo(VI) / L was used.
Results
The measured concentrations were 3.5 mg Mo(VI) / L for ultrapure water and 3.7 mg Mo(VI) / L for 0.01 M calcium chloride. On average ths concentration corresponds to 8.6 mg test item / L or less than 0.7 % of the saturated solution.
Conclusion
An adsorption / desorption study according to the guideline OECD106 with the test item is not feasible due to its low water solubility of the whole test item and the instability of the substance during the solution process. During the solution process, the test item dissociate in the ions of the test item molybdenum, vanadium, tellurium and niobium. For the molecule no solution process without degradation into the single ions is possible. Furthermore the concentration of niobium in the water phase will be in lower ppt and will not be feasible for the adsorption / desorption study.
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 022
- Report date:
- 2021
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 106 (Adsorption - Desorption Using a Batch Equilibrium Method)
Results and discussion
Applicant's summary and conclusion
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.