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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
Endpoint summary
Administrative data
Description of key information
Sodium acrylate is toxic to aquatic algae
Additional information
Since no data on aquatic toxicity for sodium acrylate are available, the assessment is based on the analogous substance acrylic acid (CAS# 79-10-7). All aquatic endpoints are assessed by a WoE approach based on experimental data with acrylic acid. See the in chapter 13.2 attached justification for details.
The acute toxicity towards aquatic freshwater organisms was investigated on all three trophic levels according to OECD guidelines involving analytical monitoring. The LC50 value for Salmo gairdneri was determined to be 27 mg/L (measured) and for Danio rerio the LC50 was 222 mg/L (nominal). The EC50 for Daphnia magna was 95 mg/L (measured) and 47 mg/L (nominal), respectively.
The 72-hour ErC50 for Scenedesmus subspicatus in two investigations was 0.13 and 0.205 mg/L (nominal), respectively. These values were used for hazard assessment.The 96-hour EC50 (cell number) for Selenastrum capricornutum was 0.17 mg/L (nominal). The NOEC for acute toxicity towards algae was determined to be 0.008 mg/L (nominal) for Scenedesmus subspicatus. These data were not used for hazard assesment, due to less reliability.
In addition, there are reliable data on short-term toxicity towards marine species available. In an OECD guideline (203) study using a flow-through system with sheepshead minnow a LC50 (96h) value was analytically estimated to be 236 mg/L. In a toxicity study with the seawater invertebrate Mysidopsis bahia an 96-hour LC50 of 97 mg/L based on mean measured concentrations was determined. This study was conducted according to the procedures in Title 40 of the Code of Federal Regulations, Part 797, Section 1930, Mysid Shrimp Acute Toxicity Test, using a flow-through test design.
BAMM (1996) conducted a 21-day chronic study with Daphnia magna under flow-through conditions according to EPA OTS 797.1330. The NOEC for reproduction was based on the parameter YAD (Young per adult reproductive day) and determined to be 19 mg/L; the corresponding LOEC (reproduction) was 38 mg/L. Based on the statistical endpoint of adult mean survival from this 21-day Daphnia magna chronic toxicity study, MATC (= geometric mean of LOEC and NOEC) limits were determined to be 8.1 mg/L (LOEC) and 3.8 mg/L (NOEC). The geometric mean of the MATC limits is 5.5 mg/L. The day 21 EC50 based on immobility/mortality of adult daphnia was determined to be >8.1 mg/L. In addition, a 21-day chronic study with Daphnia magna was conducted under semi-static conditions according to OECD TG 211. The NOEC for maternal survival was determined to be 7 mg/L, the NOEC for reproduction based on young per adult was 12 mg/L (nominal).
In order to investigate the toxicity towards domestic activated sludge, an oxygen consumption inhibition test according to ISO standard was conducted (BASF AG 1993). The resulting EC20 was 900 mg/L.
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