Registration Dossier
Registration Dossier
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EC number: 215-684-8 | CAS number: 1344-00-9
Endpoint summary
Administrative data
Description of key information
Nanomaterials do not reach equilibrium in adsorption-desorption studies with soils.
Adsorption and desorption are not applicable because silicon dioxide/silicate and aluminum are two of the most abundant materials in the Earth´s surface.
Additional information
Synthetic amorphous aluminum sodium silicates like Silicic acid, aluminum sodium salt (CAS 1344-00-9, NAS) are not volatile under environmental conditions due to their chemical nature and inherent physical properties:
Due to their low water solubility and extremely low vapour pressure, silicates are expected to be distributed mainly into soils/sediments, weakly into the water, and probably not at all into the air.
Synthetic amorphous Silicic acid, aluminum sodium salt (CAS 1344-00-9, NAS) is expected to combine undistinguishably with the soil layer or sediment due to its chemical identity with inorganic soil matter and will be subjected to slow natural transformation processes of weathering.
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