Registration Dossier
Registration Dossier
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EC number: 242-053-4 | CAS number: 18169-57-8
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
Water solubility: 1000000 mg/L at 20°C (silanol hydrolysis product)
Key value for chemical safety assessment
Additional information
The requirement to test the substance for water solubility is waived because in contact with water the substance rapidly hydrolyses to isobutylsilanetriol and hydrogen chloride. The water solubility of isobutylsilanetriol has been calculated using an appropriate predictive method; it is predicted to be miscible. However, isobutylsilanetriol may undergo condensation reactions to give siloxane dimers, oligomers and polymers; this will limit its solubility in practise.
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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