Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Physical & Chemical properties

Partition coefficient

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The overall logPow value of Silastol H 200-TS is estimated by the sum of log Pows of the components, weighted by their relative abundance.
The log Pow of Silastol H 200-TS is calculated as 8.556. The log Pow of Silastol H 200-TS is calculated as 8.556.

Key value for chemical safety assessment

Additional information

During the determination of the log Pow of a similar test item (Silastol G 19 N) with HPLC, different methods using different mobile phases and detectors were tested in order to find a suitable detection method for the test item Silastol G 19 N. The test item solution gave no additional signals, compared with the blank value, using RI- and UV-detection and LCMS. The determination of the log Pow of Silastol G 19 N was not possible with justifiable expenditure. Therefore, the determination of the log Pow of Silastol H 200-TS is not expected to be determinable with justifiable expenditure, too.

According to REACH regulation Annex VII, if the test cannot be performed (e.g. the substance decomposes, has a high surface activity, reacts violently during the performance of the test or does not dissolve in water or in octanol, or it is not possible to obtain a sufficiently pure substance), a calculated value for log P as well as details of the calculation method shall be provided.

Conclusion: no reliable value available, see field "discussion" in the endpoint summary of chapter „Ecotoxicological information“