Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 233-135-0 | CAS number: 10043-01-3
- 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
![](https://echa.europa.eu./o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_environmental-fate-and-pathways.png)
Endpoint summary
Administrative data
Description of key information
Additional information
Under REACH (ECHA 2008, Chapter R.7B – Endpoint Specific Guidance), the term ‘Hydrolysis’ refers to the “Decomposition or degradation of a chemical by reaction with water”, and this is a function of pH (i. e., abiotic degradation). Aluminium persists in the environment irrespective of whatever chemical species form as a result of hydrolysis, although it may form insoluble aluminium hydroxides that precipitate out of solution. Characterization of aluminium in environmental media is typically based on total aluminium concentrations inclusive of all specific chemical forms or species. Since hydrolysis changes the chemical form but does not decompose aluminium and since characterization of total aluminium considers all chemical forms, the concept of degradation of aluminium by hydrolysis needs to be considered differently from that of organic substances during the consideration of its environmental fate.
Aluminum is a strongly hydrolysing metal but is relatively insoluble in the neutral pH range (6.0–8.0) which is the most commonly observed range of environmental pH for aquifers.
Nevertheless the stability of aluminium salts in the environment need to be considered in a different context from that used to determine fate for organic substances: As a metal, speciation, the partitioning of aluminium among different physical and chemical forms, occurs.
Both speciation and solubility of aluminum are affected by a several environmental parameters, notably pH, but also water temperature, dissolved organic carbon (DOC) content, to some extent hardness and the presence and concentrations of numerous ligands.
Metals in solution may be present as dissolved complexes, as “free” or aquo ions, in association with particles, as colloids or as solids in the process of precipitating low solubility species. Colloidal particles (0.001 to 1μm) are implicated in the transport of metals in river ecosystems, and accumulation of metals in sediment and biofilm and the transfer to biota. The reactivity of aluminum, as well as geochemical behaviour, bioavailability and toxicity, depend upon its speciation.
In solution inorganic ligands such as sulphate (SO42-), fluoride (F-), phosphate (PO43-), bicarbonate (HCO3-) and hydroxide (OH-), inter alia can form strong complexes with aluminum. While organic ligands can be formed with oxalic, humic and fulvic acids. The proportions and type of complexes that are formed in solution are determined by the relative concentrations of the inorganic and organic ligands.
Interactions with pH and DOC are well reported and primordial to the fate and behaviour of aluminum. DOC will complex with aluminium in water, forming aluminium-organic complexes and reducing concentrations of monomeric forms of aluminum. 1 mg DOC/L at pH 4.5, complexes approximately 0.025 mg Al/L with complexing capacity increasing with pH. Environment Canada (2010) modelled fractions of dissolved organic aluminum for various rivers in Canada using the MINEQL+ and WHAM; According to their calculations the importance of complexation with dissolved organic material (DOM) decreased over the pH range 7.0 to 8.5, but this may be related to the reduction of the Al3 +and AlOH 2 +species at these pHs which can associate with DOM.
The hydrolytic products of mononuclear aluminum combine to form polynuclear species in solution in aquifers. Aluminum starts to polymerize when the pH of an acidic solution is above 4.5: 2Al(OH)(H2O)52+Al2(OH)2(H2O)84++ 2H2O.
Polymerization leads to larger structures, and ultimately to the formation of the Al13polycation.
Refs . Environment Canada Health Canada, (2010) Priority substance list assessment report. follow-up to the state of science report, 2000: Aluminium chloride, aluminium nitrate aluminium sulphate
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
![ECHA](/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/echa_logo.png)