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EC number: 219-536-3 | CAS number: 2457-02-5
- 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

Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.42 mg/L
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1.23 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.04 mg/L
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 36.8 mg/L
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 7.86 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.79 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 1.31 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Read-across approach
In the assessment of the environmental fate, ecotoxicity and toxicity of strontium bis(2-ethylhexanoate) (CAS: 2457-02-5), a read-across approach from data for the metal cation (strontium) and the organic anion (2-ethylhexanoate) is followed. This read-across strategy is based upon the observation that upon dissolution in aqueous media, strontium bis(2-ethylhexanoate) completely dissociates and only is present in its dissociated form, i.e. as strontium cations and 2-ethylhexanoate anions. Data on the environmental fate, ecotoxicity and toxicity for both transformation products (strontium cation and 2-ethylhexanoate anion) together can therefore be combined in an additive approach to predict the corresponding properties of strontium bis(2-ethylhexanoate).
A detailed justification for the read-across approach is added as a separate document in section 13 of IUCLID.
Upon dissolution and dissociation of strontium bis(2-ethylhexanoate) into the strontium cation and 2-ethylhexanoate anion, both ions will each show the proper (bio)degradation, bioaccumulation and partitioning behaviour in the environment, as reported for the corresponding ion. The environmental fate and behaviour for the strontium cation and 2-ethyl hexanoate anion is predicted to be clearly different from each other, resulting in a different relative distribution over the environmental compartments (water, air, sediment and soil). Because the relative exposure to both constituent ions is hence predicted to be different from the original composition of strontium bis(2-ethylhexanoate), data for the ecotoxicological properties of this substance tested as such are considered less relevant for its effects and risk assessment and a read-across approach from data for both the strontium cation and 2-ethyl hexanoate anion is preferred. The dose additivity approach is used to explain the ecotoxicological effects of strontium bis(2-ethylhexanoate) based on the data for the individual transformation products (strontium cation and 2-ethylhexanoate anion).
Conclusion on classification
No reliable ecotoxicological data are available for strontium bis(2-ethylhexanoate). The substance will dissociate into strontium cations and 2-ethylhexanoate anions after dissolution in water and hence can be regarded as a mixture of both constituent ions. In the absence of toxicity data for strontium bis(2-ethylhexanoate), its classification for environmental hazards is therefore based on the classification of the transformation products (strontium and 2-ethylhexanoate ions).
Both strontium and 2-ethylhexanoic acid are not classified as hazardous to the aquatic environment and therefore, it is concluded that strontium bis(2-ethylhexanoate) is not classified as hazardous to the aquatic environment.
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