Registration Dossier
Registration Dossier
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EC number: 296-473-8 | CAS number: 92704-41-1 The product of high temperature calcination (above 450°C (842°F)) of naturally occurring kaolin, a hydrated aluminum silicate, resulting in the evolution of water and the formation of new substances depending upon the calcination temperatures employed.
Endpoint summary
Administrative data
Description of key information
Additional information
Kaolin, calcined, if released into the environment, is expected to combine indistinguishably with the soil or sediment due to its similarity with inorganic soil/sediment matter and will be subjected to natural processes under environmental conditions (cation exchange, dissolution, sedimentation). Due to low water solubility and extremely low vapour pressure, it is expected to distribute mainly into soils and sediments, weakly into water and probably not at all into the air.
Besides, the study on adsorption/desorption does not need to be performed, since the substance is an important adsorbent.
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