Registration Dossier
Registration Dossier
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EC number: 611-631-1 | CAS number: 58190-57-1
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with Column 2 of REACH Annex VII, the study does not need to be conducted if the substance is hydrolytically unstable at pH 4, 7 and 9 (half-life less than 12 hours). The estimated water solubility of the degradation products were 334 mg/L for acetone oxime (Rosene et al. 1976) and 1000000 mg/L for ethylsilanetriol (EPI-Suite, WSKOW v1.42).
Key value for chemical safety assessment
- Water solubility:
- 334 mg/L
Additional information
In accordance with Column 2 of REACH Annex VII, the study does not need to be conducted if the substance is hydrolytically unstable at pH 4, 7 and 9 (half-life less than 12 hours). The substance undergoes rapid hydrolysis (half-life < 1h) in aqueous to acetone oxime and ethylsilanetriol. Morevoer, the corresponding silanols undergo continuous condensation reactions to produce higher molecular weight siloxanes which are considered biologically unavailable.
The estimated water solubility for the degradation products acetone oxime and ethylsilanetriol were 334 mg/L (Rosene et al. 1976) and 1000000 mg/L (EPI-Suite, WSKOW v1.42). Moreover, according to several Handbooks per review acetone oxime is determined to be very soluble.
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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