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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Reference
Endpoint:
dissociation constant
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data published in a peer-reviewed literature; adequate for assessment.
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 112 (Dissociation Constants in Water)
GLP compliance:
no
Dissociating properties:
no
No.:
#1
pKa:
ca. 12.45
Temp.:
25 °C
Conclusions:
The pKa of MEKO has been reported to be 12.45 at 24 degrees Celcius.

Description of key information

pK = 12.45 at 25 °C

Key value for chemical safety assessment

pKa at 20°C:
12.45

Additional information

Data from a reliable study, published in peer-reviewed literature; adequate for assessment.