Registration Dossier
Registration Dossier
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EC number: 215-628-2 | CAS number: 1335-30-4
Endpoint summary
Administrative data
Description of key information
Additional information
Silicic acid, aluminium salt is an inorganic solid and poorly soluble in water. Due to its chemical nature and stability, hydrolysis is not expected. However, ion exchange processes are possible depending on the surrounding environment to transfer the substance in another, as very limited, not quantifiable hydrolysis is involved in the dissolution of silicates in water.
Based on the chemical nature, inorganic structure and chemical stability of silicic acid, aluminium salt, phototransformation in air, water and soil is not expected. For the same reasons, biodegradation in water, sediment or soil is not applicable as environmental fate process.Silicic acid, aluminium salt is an inorganic solid insoluble in n-octanol. Due to its inherent chemico-physical properties, bioaccumulation is not expected. Besides, as the substance is poorly soluble, low concentrations are expected in the aquatic compartment. Low quantities which might be taken up are considered to be not bioavailable as it is known that no toxicologically relevant absorption of Al occurs, whereas absorbed Si levels are known to be rapidly excreted in urine and faeces. Thus, silicic acid, aluminium salt contains no bioaccumulation potential.
If released into the environment, the substance 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.
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.
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