Registration Dossier
Registration Dossier
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EC number: 260-599-1 | CAS number: 57158-29-9
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
Aluminium Zirconium Chloride Hydroxide is very soluble in water. It is produced and marketed in aqueous solutions containing between ca. 27 and 51% (mass), i.e. ca. 270-510 g/L. The viscosity of aqueous solutions increases with concentration and gelation is observed towards higher concentrations.
A defined numeric value for an equilibrium water solubility cannot be determined for this substances(e.g. according to method OECD 105).
Further, the chemistry of the relevant metals aluminium and zirconium in aqueous solutions is complex. Depending on concentrations, pH and other ions being present, Al and Zr do not exist as simple metal cations, but instead form various species, most relevantly hydroxides and hydroxide-oxides.To obtain information on the solubility and speciation behaviour at environmentally and physiologically relevant concentrations, a reduced testing programme was conducted in purified water and in reconstituted water (target pH=6 and 8). The results are presented in two separate endpoint records in the technical dossier.
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.
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