Registration Dossier
Registration Dossier
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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.
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EC number: 215-138-9 | CAS number: 1305-78-8
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Rationale for read-across:
In soil as well as in sediment-water systems, calcium oxide will react and release calcium ions and hydroxyl ions. Therefore, relevant information on adsorption/desorption of calcium oxide can be broadened to data on adsorption/desorption of calcium and magnesium. The behaviour of hydroxyl ions depends on the pH buffer capacity of the tested medium. The pH buffer capacity is controlled by a whole range of processes (mineral dissolution/precipitation, protonation/deprotonation of pH dependent charge sites, reaction with CO2, biological processes etc.) and as such, Kd values are not relevant for the fate and behaviour of OH- in soils or sediment.
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.
