Registration Dossier
Registration Dossier
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EC number: 215-268-6 | CAS number: 1317-37-9
Endpoint summary
Administrative data
Description of key information
Additional information
The substance is inorganic and insoluble. It may however appear in the environment as particulate matter which may be mobile. Hence, for risk assessment considerations, its Koc is set as 1 L/kg (log Koc=0). Mobility of particles depends on their size and hence their sedimentation velocity. The mass medium diameter or the substance solids is 34.5 µm, i.e. the texture of fine sand. It is likely that the waste majority of the particles (if not all) will sediment during the second STP sedimentation process (as such or flocculated) and will hence be not part of effluents. The finest particles (D10=6.71 µm) might pass STP clearance and reach surface waters, where there will be a final sedimentation with time where particles will contribute to the naturally occurring pool of the substance. Groundwater contamination is excluded since particles of any size are assumed to be filtered during passage through sediment and/or soil layers.
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.
