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Dissociation constant

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Reference
Endpoint:
dissociation constant
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 112 (Dissociation Constants in Water)
GLP compliance:
yes (incl. QA statement)
Dissociating properties:
yes
No.:
#1
pKa:
9.8
Temp.:
20 °C

The measurement of the dissociation constant (PKa) of the test item at 20°C using a test item concentration of 0.009 mol/l resulted in the following value (rounded mean value of a triple determination): pKa = 9.8

Description of key information

The dissociation constant of the substance is 9.8 at 20°C.

Key value for chemical safety assessment

pKa at 20°C:
9.8

Additional information

A GLP study was conducted (BASF SE 11L00464) in accordance with the OECD Guideline for the Testing of Chemicals 112, dissociation constants in water.

The dissociation constant of the substance was determined to be 9.8 at 20°C.