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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Dissociation constant

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Administrative data

Link to relevant study record(s)

dissociation constant
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance has no ionic structure

Description of key information

The components of “2-propanol and 2-butanol production, distn. residues” do not dissociate in water. The main components of the substance are alcohols and ethers which do not act as acid or basic groups in water and the components of the substance do not have an ionic structure. According to ECHA guidance Chapter R.7a if substance cannot dissociate due to lack of relevant functional groups, the dissociation constant is irrelevant.

Key value for chemical safety assessment

Additional information