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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
dissociation constant
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
no guideline required
Principles of method if other than guideline:
validated QSAR model
GLP compliance:
not specified

Test material

Results and discussion

Dissociating properties:
no
Dissociation constant
No.:
#1
pKa:
-6.53
Temp.:
20 °C

Any other information on results incl. tables

The dissociation constant of the substance was estimated based on chemical structure, with a finding of -6.53. This is outside the range of plausible environmental pH values. The interpretation is that the substance does not dissociate under relevant conditions.

Applicant's summary and conclusion

Conclusions:
The dissociation constant of the substance was estimated based on chemical structure, with a finding of -6.53. This is outside the range of plausible environmental pH values. The interpretation is that the substance does not dissociate under relevant conditions.
Executive summary:

The dissociation constant of the substance was estimated based on chemical structure, with a finding of -6.53. This is outside the range of plausible environmental pH values. The interpretation is that the substance does not dissociate under relevant conditions.