Registration Dossier
Registration Dossier
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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.
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EC number: 268-103-5 | CAS number: 68002-88-0 This substance is identified by SDA Substance Name: C16-C22 alkyl carboxylic acid and SDA Reporting Number: 21-005-00.
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
The dissociation constant pKa is approx. 4.75 at 25 °C.
Key value for chemical safety assessment
Additional information
There is no experimental data for dissociation constant available and the value was read-across from the two main constituents of the mixture, palmitic and stearic acid (C16 and C18, respectively).
These values for pKa were estimated by using the SPARC programm. They are cited in a peer-reviewed data base (HSDB).
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