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Diss Factsheets
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EC number: 235-487-0 | CAS number: 12251-53-5
- 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
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Sodium aluminate is stable only under alkaline conditions and decomposes rapidly under environmental conditions to aluminium hydroxide in aquatic system or deposits as aluminium oxide (gibbsite) in sediment or soil, whereas due to their high solubility, sodium ions transfer to soil water that is why sorption to soil particles will be negligible.
Both aluminium hydroxide and oxide are insoluble under normal environmental conditions in the range of pH 5 – 8. Thus, they precipitate and subsequently are immobilised in soil and sediment.
Key value for chemical safety assessment
Additional information
Sodium aluminate is stable only under alkaline conditions and decomposes rapidly under environmental conditions to aluminium hydroxide in aquatic system or deposits as aluminium oxide (gibbsite) in sediment or soil, whereas due to their high solubility, sodium ions transfer to soil water that is why sorption to soil particles will be negligible.
Both aluminium hydroxide and oxide are insoluble under normal environmental conditions in the range of pH 5 – 8. Thus, they precipitate and subsequently are immobilised in soil and sediment. However, the surface chemical behaviour of aluminium oxides and hydroxides indicates that the hydrolysis and precipitation process of aluminium hydroxide and oxide in the aquatic and terrestrial compartments is more complicated. The relative mobility of aluminium hydroxide and oxide, as well as the other aluminium species, depend upon on many factors, especially pH, alkalinity, temperature, dissolved organic carbon, dissolved inorganic carbon and anion concentration. Kaplan (2005) published several Kd values based on measured Al concentration in groundwater and sediment and suggested Al Kd values for soil, grout, gravel, clay to be 3700 mL/g and 5000 mL/g for concrete, respectively.
Reference
Kaplan D.I. (2005) Recommended Distribution Coefficients, Kd Values, for Special Analysis Risk Calculations Related to Waste Disposal and Tank Closure on the Savannah River Site (U), Westinghouse Savannah River Company Savannah River Site,
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