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EC number: 235-101-0 | CAS number: 12068-53-0
- 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
Additional information
Due to its low solubility in water, Zinc aluminium oxide will mainly remain undissolved under neutral environmental conditions and will deposit in soil or sediment. A minor fraction may dissolve into the aqueous phase under acidic or alkaline conditions. In this case each metal will undergo speciation in function of the environmental conditions. The speciation and adsorption of metals in the environment depends on a number of parameters, such as pH, redox potential, DOC and the presence of anions or complexing agents. Solids-water partition coefficients (log Kpsusp) derived from measured data for zinc range from 3.43 to 5.04 (Popp and Laquer, 1980; Li et al., 1984; Stortelder et al., 1989; Venema, 1994; Koelmans and Radovanovic, 1997; Yland and Smedes, 1996; Yland, 1996). For aluminium, log Kd values between 3 and 5 were obtained in a chemical simulation that included aqueous aluminium speciation (inorganic and organic), aluminium solubility, and complexation by NOM. Both metals are also naturally present in the environment. Mean concentrations for aluminium and zinc in water of 0.076 mg/L and 0.006 mg/L, respectively, have been reported by Salminen et al. (2005).
Biodegradation is not relevant for Zinc aluminium oxide, since the substance is inorganic. Aluminium and zinc may participate in hydrolysis reactions, thereby forming a number of monomeric and polymeric hydroxides and this process is highly dependent on pH. However, aluminium and zinc will persist in the environment irrespective of whatever chemical species are formed as a result of hydrolysis.
References:
Li, Y et al. 1984. Desorption and coagulation of trace elements during estuarine mixing. Geochimica et Cosmochimica Acta, 48: 1879-1884
Koelmans, AA and H Radovanovic. 1997. Modelling trace metal distribution in surface waters, Model formulations and calibration. Wageningen Agriculture University.
Popp, C.J. and Laquer, F. 1980. Trace metal transport and partitioning in the suspended sediments of the Rio Grande and tributaries in central New Mexico: Chemosphere, v. 9, pp. 89-98.
Stortelder et al. 1989. Perspectives for water organisms (part 1 and 2). DBW/RIZA Nota No. 89.016a+b, Lelystad, NL.
Venema. 1994. Gehalte in zwevend stof, meten of berekenen? RIZA werkdocument 94064x, RIZA, Lelystad, NL.
Yland, E. 1996. Partitiecoëfficiënten tussen sediment en water voor metalen berekend uit mariene monitoringsgegevens en analyse van het aandeel van de achtergrondwaarde op de zwevend stof/water coëfficiënt. RIKZ/OS96.141 x (in Dutch).
Yland, E and Smedes F. 1996. Partitiecoëfficiënten tussen zwevend stof en water voor metalen berekend uit mariene monitoringsgegevens. RIKZ/OS96.117 x (in Dutch).
Salminen, R. (chief-editor, 2005) Geochemical Atlas of Europe. ISBN 951-690-913-2 (electronic version:http://www.gsf.fi/publ/foregsatlas/maps_table.php)
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