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: 235-252-2
CAS number: 12141-20-7
Phototransformation is not a relevant endpoint for inorganic lead
As mentioned previously, in the case of the current substance (i.e.,
Pb-salt ), the chemical safety assessment will be based on elemental
metal concentrations, regardless of their (pH-dependent) speciation in
the environment. Hence, as the assessment is based on the element
concentration (i.e., Pb), physicochemical processes like
phototransformation and hydrolysis are not relevant. Formation of
different Pb-hydroxides may occur, but the chemical assessment will not
make any differentiation among the different Pb-species (pooling of
different speciation forms). This elemental-based assessment (pooling
all speciation forms together) can be considered as a worst-case
assumption for the chemical assessment. In general, (abiotic)
degradation is an irrelevant process for inorganic substances that are
assessed on an elemental basis.
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.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again