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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other: Handbook data
Adequacy of study:
key study
Study period:
not reported
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Principles of method if other than guideline:
No principle of method available; handbook data
GLP compliance:
not specified
Dissociating properties:
yes
No.:
#1
pKa:
9.4
Remarks on result:
other: pKb value of 4.6 reported. No temperature indicated.

The reported pKb value is 4.6. Using the formula pKb = 14 - pKa, a pKa value of 9.4 can be calculated.

Conclusions:
The pKb value of the test item is 4.6.
Executive summary:

According to the Kirk-Othmer Encyclopedia (3rd Edition, 1978) the pKb value of the test item is 4.6. Using the formula pKb = 14 - pKa, a pKa value of 9.4 can be calculated.

Description of key information

According to the Kirk-Othmer Encyclopedia (3rd Edition, 1978) the pKb value of the test item is 4.6. Using the formula pKb = 14 - pKa, a pKa value of 9.4 can be calculated.

Key value for chemical safety assessment

Additional information