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EC number: 231-209-7 | CAS number: 7446-81-3
- 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
Link to relevant study record(s)
Description of key information
Adsorption to soil is not expected.
Key value for chemical safety assessment
- Koc at 20 °C:
- 42.8
Additional information
In water sodium acrylate will dissociate immediately into sodium- and acrylate-ions. Therefore, the estimation of the adsorptive properties of sodium acrylate is based on a weight of evidence approach consisting of experimental studies with acrylic acid and QSAR caculations with sodium acrylate. For detailed information see the attached WoE justification in chapter 13.2.
The adsorption and desorption characteristics of acrylic acid to five soils, a loamy sand, a clay loam, two loams and an aquatic sediment, were determined in a GLP guideline study (U.S. EPA guidelines - CFR 40 section 796.2750; BAMM 1991). The organic carbon content of the soils and sediment used ranged from 0.46 % to 4.58 %. 14C-acrylic acid was used in following the movement of the compound for one adsorption and three desorption steps. Six concentrations of acrylic acid in 0.1 N calcium nitrate solution were used in these experiments (0.3 - 9.9 µg/mL). The average Koc for the adsorption was 42.8 ± 53.98 (log Koc 1.63). Acrylic acid was less readily desorbed from the soils once adsorption had occurred. Related to the carbon content of the individual soils, the average Koc for the combined desorption steps was 183.1 ± 266.0. Based on acrylic acid it can be concluded that adsorption to solid soil phase of sodium acrylate is not to be expected.
These expectations were confirmed by QSAR calculations (EPIwin v4.11, KocWin v.2.00) with sodium acrylate. Due to its low log Kow the substance is not falling completely into the applicability domain of the submodel. But the estimated Koc was within the range of the measured Koc of acrylic acid. The results can therefore be considered reliable and no adsorption to the soild soil phase is expected.
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