Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Parent compound: 2-ethylhexanoyl chloride: not applicable
Hydrolysis product: 2-ethylhexanoic acid: pKa = 4.72 (SPARC v4.2; BASF, 2009)

Key value for chemical safety assessment

Additional information

Parent compound: In accordance with column 2 of REACH Annex IX, the dissociation constant study does not need to be performed as the substance is hydrolytically unstable (half-life less than 12 hours).

Hydrolysis product: The pKa of 2 -ethylhexanoic acid is 4.72, indicating that this compound will exist almost entirely in anion form in the environment (SPARC v4.2; BASF, 2009).