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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Both sodium and potassium chlorate almost totally dissociate in water, producing sodium/potassium cations and chlorate anions. The conclusions drawn for sodium chlorate are also valid for potassium chlorate.


Sodium chlorate is very soluble in water, is not expected to adsorb onto soil and does not evaporate. From these findings the environmental compartment in which sodium chlorate is expected to be present is water.


The calculations performed with Mackay's level I model support this. In this model all sodium chlorate present in the environment is found in water.

Additional information