Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The adsorption of Chlorhexidine on sludge, soil and sediment is expected to be relatively high. As the substance is supposed to be not readily degradable, adsorption is expected to be the major removal mechanism in biological sewage treatment plants. The high sorption indicates that the substance is nearly immobile in soils.

Chlorhexidine has a relatively low vapour pressure in the range of 2.81E-19 hPa and 7.57E-14 hPa at 25 °C. With its estimated low Henry’s law constant of 1.14 • 10-25Pa · m3/mol at 25 °C, the substance is not volatile from aqueous solutions under environmental conditions.

Based on these properties, it is expected that the major target compartments are sediments and soils.