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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Reference
Endpoint:
dissociation constant
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1992/02/20 to 1992/05/14
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
This experimental study report is reliable as it has been conducted by a trusted laboratory, under GLP and following OECD Guidelines.
Qualifier:
according to guideline
Guideline:
OECD Guideline 112 (Dissociation Constants in Water)
Version / remarks:
1992
Deviations:
no
GLP compliance:
yes
No.:
#1
pKa:
5.22
Temp.:
20 °C
Conclusions:
Dissociation constant (pKa) of the test substance in the water, at 20 °C, is 5.22.
Executive summary:

The dissociation constant of the test substance was determined based on the OECD Guideline 112. Dissociation constant (pKa) of the test substance in the water, at 20 °C, is 5.22.

Description of key information

Dissociation constant (pKa) of the test substance in the water at 20 °C: 5.22, OECD Guideline 112, Jakel 1992.

Key value for chemical safety assessment

pKa at 20°C:
5.22

Additional information