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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data from handbook or collection of data.
Principles of method if other than guideline:
Handbook data, no information is given on test method
GLP compliance:
no
Dissociating properties:
yes
No.:
#1
pKa:
2.35
Temp.:
25 °C
No.:
#2
pKa:
9.78
Temp.:
25 °C

Description of key information

1. 2.35 at 25 °C

2. 9.78 at 25 °C

Key value for chemical safety assessment

Additional information

The dissociation constants of the substance glycine (CAS 56-40-6) were obtained from peer-reviewed handbook data.

The dissociation constants (2.34 and 9.6 at 25 °C) obtained from another handbook are supporting.