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EC number: 619-635-5 | CAS number: 12567-73-6
- 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
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Toxicity to aquatic algae: key study in Selenastrum capricornutum: results from a study report leading to the conclusion that:
NOEC (0-72h) of Zirkonium-tetrakis(isobutyrato) = ≥ WAF (a) (100 mg/L)
EC50 (0-72h) of Zirkonium-tetrakis(isobutyrato) = > WAF (a) (100 mg/L)
(a) The WAF was obtained by preparing an aqueous extract from a “loading rate” of 111.1 mg (target value) Zirkonium-tetrakis(isobutyrato) per L nutrient medium.
Key value for chemical safety assessment
Additional information
Key study: experimental result from a study report in Selenastrum capricornutum, according to the directive 92/69/EEC Part C.3, by a growth inhibition test.
As the test substance was of only limited solubility in culture media (nutrient medium), an aqueous extract from a "loading rate" of 111.1 mg (target value) Zirkonium-tetrakis(isobutyrato)
per L nutrient medium was prepared. This water accommodated fraction (WAF) was used as the highest test substance concentration and were further diluted with nutrient medium to obtain the concentrations WAF/2, WAF/4, WAF/8, WAF/16, WAF/32, WAF/64, WAF/128 and WAF/256.The very low solubility of the test substance in water (<1mg/L), the rapid degradation of the substance and the formation of a variety of degradation and build-up products are the reasons why no chemical analysis of the actual test substance concentration was performed, neither at the start nor at the end of the exposure.
It is concluded that:
NOEC (0-72h) = ≥ WAF (a) (100 mg/L)
EC50 (0-72h) = > WAF (a) (100 mg/L)
(a) The WAF was obtained by preparing an aqueous extract from a “loading rate” of 111.1 mg (target value) Zirkonium-tetrakis(isobutyrate) per L nutrient medium.
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