Registration Dossier
Registration Dossier
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EC number: 260-350-7 | CAS number: 56706-10-6
Endpoint summary
Administrative data
Description of key information
The substance hydrolyses to (3-{[3-(trihydroxysilyl)propyl]disulfanyl}propyl)silanetriol and ethanol with a hydrolysis half-life of greater than 40 hours. Given the rate of hydrolysis, the environmental hazard assessment for the aquatic compartment including wastewater treatment plant, is based on the properties of the parent substance in accordance with REACH guidance for Chemical Safety Assessment (Chapter R16, ECHA 2016). The environmental hazard assessment for the sediment and soil compartments are considered for both parent substance and silanol hydrolysis product.
(3-{[3-(Trihydroxysilyl) propyl]disulfanyl}propyl)silanetriol is the expected final product of hydrolysis reactions under conditions of a hydrolysis laboratory study. However, other biotic or abiotic reactions may proceed over longer timescales in the environment.
The substance has a named impurity that is similar in structure and therefore the impurity will have similar physicochemical properties and assessment approaches.
Reference:
ECHA (2016). REACH Guidance on Information Requirements and Chemical Safety Assessment Chapter R16: Environmental Exposure Assessment Version: 3.0. February 2016
Additional information
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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