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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

LogPow= 2.77 at 25°C  (of brilliant green cation, calculated) 
LogPow= -0.17 at 25°C (of acetic acid, experimental)

Key value for chemical safety assessment

Additional information

The test item is surface active so the determination of the log Pow according to the OECD Guideline 107 (shake flask method) and also according to OECD Guideline 117 (HPLC method) is not feasible. The HPLC method is also not suitable to determine Pow, because the test item cannot be chromatographed under the prescribed conditions. As the test item is miscible in any ratio in water and in n-octanol as well, the log Pow of the test item can not even be estimated from the single solubilities in water and in n-octanol.

Instead of that the logPow value of the brilliant green cation was calculated based on fragment method using KOWWIN (v1.68) module of software EPI Suite and the logPow value of acetic acid is available in many published sources.