Registration Dossier
Registration Dossier
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EC number: 231-208-1 | CAS number: 7446-70-0
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
A number of chemical factors can alter the speciation of aluminium, thereby affecting the extent of adsorption and desorption of aluminium on suspended particles, as a result aluminium speciation is complex and changes significantly with changes in pH.
Due to its dynamic chemistry, the amount of aluminium associated with suspended particles is dependent on the chemical conditions. Factors that are known to affect aluminium speciation, such as pH and DOC, are also known to affect adsorption and desorption from particle surfaces.
In a study on sorption behavior of aluminium on black and albic soils, it was shown that the amount of aluminium adsorbed by the soils was higher in the range of of pH 4 to 6 and the adsorption capacity decreased when the contents of organic matter decreased.
Key value for chemical safety assessment
Additional information
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.
