Registration Dossier
Registration Dossier
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EC number: 215-685-3 | CAS number: 1344-01-0
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
The water solubility of the registered substance was found to be 73 mg/l. The hydrolysis study is not required for substances which are poorly soluble in water, in accordance with REACH Annex VIII, Column 2. This waiver is supported by a read-across study conducted on silicone dioxide, which is structurally similar to the registered substance. Silicone dioxide did not rapidly hydrolyse in the study.
Key value for chemical safety assessment
Additional information
The water solubility of the registered substance was found to be 73 mg/l. The hydrolysis study is not required for substances which are poorly soluble in water, in accordance with REACH Annex VIII, Column 2. This waiver is supported by a read-across study conducted on silicone dioxide, which is structurally similar to the registered substance. Silicone dioxide did not rapidly hydrolyse in the study. The structure of both silicic acid, aluminium, sodium salt and silicic acid, aluminium, calcium, sodium salt are macromolecular skeletons of silicon and oxygen with the metal cations binding ionically to negatively charged oxygens in the structure. In the silicic acid, aluminium, calcium, sodium salt the metal cations bind ionically to negatively charged oxygens in the structure. The inclusion of calcium salts to the structure of silicic acid, aluminium, sodium salt would not be expected to change the behaviour of the substance in water.
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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