Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 233-477-0 | CAS number: 10193-36-9
Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption: screening
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the physicochemical properties of the substance indicate that it can be expected to have a low potential for adsorption
- Justification for type of information:
- See Attached Justification
Reference
Description of key information
Based on the physicochemical properties of tetrahydroxysilane a relatively low adsorption potential is expected. Crystalline silicates such as tetrahydroxysilane are insoluble in alcohol. Due to the insolubility in alcohols, such as n-octanol, the determination of a log Kow is not feasible. Moreover, a precise prediction of the distribution of soluble silicates in various environmental compartments is not feasible, since a dynamic equilibrium between a variety of mono-, oligo- and poly-associated anions occurs, depending on the pH conditions and the substance concentration.
The main constituent of the substance, PEG 400, is characterized by a partition coefficient of -3.05 and an adsorption of the substance is not expected.
Key value for chemical safety assessment
Additional information
Based on the physicochemical properties of tetrahydroxysilane a relatively low adsorption potential is expected. Crystalline silicates such as tetrahydroxysilane are insoluble in alcohol. Due to the insolubility in alcohols, such as n-octanol, the determination of a log Kow is not feasible. Moreover, a precise prediction of the distribution of soluble silicates in various environmental compartments is not feasible, since a dynamic equilibrium between a variety of mono-, oligo- and poly-associated anions occurs, depending on the pH conditions and the substance concentration.
The main constituent of the substance, PEG 400, is characterized by a partition coefficient of -3.05 and an adsorption of the substance is not expected.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
