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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Endpoint:
dissociation constant
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Principles of method if other than guideline:
no data
GLP compliance:
no
Dissociating properties:
yes
No.:
#1
pKa:
9
Temp.:
20 °C

pKa (HL/H+L) = 9.0 ± 0.20

Conclusions:
The dissociation constant of dibenzylamine was calculated at pKa (HL/H+L) = 9.0 ± 0.20 with ACD 7.0.
Executive summary:

The dissociation constant of dibenzylamine was calculated at pKa (HL/H+L) = 9.0 ± 0.20 with ACD 7.0.

Endpoint:
dissociation constant
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Reason / purpose for cross-reference:
reference to same study
Principles of method if other than guideline:
no data
GLP compliance:
not specified
Dissociating properties:
yes
No.:
#1
pKa:
7.7
Remarks on result:
other: pK

temperature not reported.

pK = 7.7 [N(+)-H] in water

Description of key information

The dissociation constant of dibenzylamine was calculated at pKa (HL/H+L) = 9.0 ± 0.20 with ACD 7.0 (Temperature: 20°C). 

Key value for chemical safety assessment

pKa at 20°C:
9

Additional information

According to Reaxys, 2011 (WoE, Key 2), the pK of dibenzylamine is 7.7 [N(+)-H] in water.