Registration Dossier
Registration Dossier
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EC number: 234-919-5 | CAS number: 12040-43-6
Endpoint summary
Administrative data
Description of key information
Silicic acid, aluminium magnesium sodium salt, if released into the environment, combines 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 moderate water solubility, density and low vapour pressure, it is expected to distribute mainly into soils and sediments, weakly into water and probably not at all into the air.
Additional information
Testing of the adsorption of Silicic acid, aluminium magnesium sodium salt on soils according OECD 106 failed:
Test solution (test item) and soil contain beside same cations (natrium, magnesium, aluminium) also silicon on both sides. Depending on parameters like reaction time, pH value etc. various equilibrium concentrations of silicon in soil and test solution occurred including transfer of silicon from soil to test solution. Therefore an analytical determination of adsorption is technically not possible.
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