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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Description of key information

The measured partition coefficient for thioglycolic acid is of -2.99 at 22°C and pH 7.

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
22 °C

Additional information

Based on thioglycolic acid Log Kow value obtained in the frame of an OECD 107 test, it can be concluded that thioglycolic acid bioaccumulation potential is negligible. Thioglycolic acid would be expected to exist in its ionized form under most environmental conditions, and it is reasonable to expect that the acid and its salt will behave similarly in the environment. Therefore bioaccumulation potential for salts is also expected to be negligible.