Registration Dossier
Registration Dossier
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EC number: 300-212-6 | CAS number: 93924-19-7 Hollow ceramic spheres formed as a part of the ash in power stations burning pulverized coal. Composed primarily of the oxides of aluminium, iron and silicon and contain carbon dioxide and nitrogen within the sphere.
Endpoint summary
Administrative data
Description of key information
Additional information
Distribution modelling is not applicable since several physical parameters are not available (e. g. Partition coefficient, vapour pressure, etc.). An estimation of an adsorption coefficient (Koc) on soil and sewage sludge using HPLC is not possible to carry out because of a character of the test substance (inorganic UVCB substance). Volatilization of cenospheres is not expected based on the physical chemical properties of this inorganic mixture.
The cenospheres are hollow balls. They were collected directly from ash ponds or sediment ponts, if released to water the gas bubbles cause the cenospheres to be so lightweight that they float on water.
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