Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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: 215-200-5 | CAS number: 1312-81-8
Endpoint summary
Administrative data
Description of key information
Additional information
No data on the behaviour of lanthanum oxide in the environment are available. The low water solubility of lanthanum oxide suggests that it may be found in sediment or soil. A soil absorption study with three soils using the batch equilibrium method according to OECD guideline No. 106 confirmed a strong absorption to soil with a log Koc of 6.36. Sediment absorption data are only available for lanthanum determined as lanthanum ions. Sediment absorption coefficients were derived using the FOREG data base. The 90th percentile log Kd was 6.84 and the 10th percentile log Kd was 4.74. This indicates a wide variation. Moermond et al (2005) developed a biological ligand model and determined that the sediment absorption is dependent mainly on pH, alkalinity, chlorine concentrations and the presence of complexing agents. Due to its physical chemical properties volatilisation is not expected to occur, based on the low vapour pressure and its iorganic ionic nature.
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.
