Registration Dossier
Registration Dossier
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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.
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