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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 240-914-9 | CAS number: 16881-77-9
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
The transition of a substance from the water phase to the gas phase can be estimated by the Henry’s Law Constant (HLC). No measured value for this parameter is available. The HLC can be estimated from the ratio of the vapour pressure to the water solubility.
HLC = (VP*MW) / WS
Volatilisation from water is not relevant for dimethoxymethylsilane (CAS 16881 -77-9) due to its rapid hydrolysis in contact with water (calculated half-life of 0.3 h).
The HLC value for methylsilanetriol at 12 °C was predicted to be 2.3 E-06 Pa m3mol-1 (EUSES 2.1.1).
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