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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
data from handbook or collection of data
Qualifier:
no guideline available
Principles of method if other than guideline:
No data reported in the review.
GLP compliance:
not specified
Dissociating properties:
no
pKa:
10.88
Temp.:
25 °C
Conclusions:
In this review the pKa of 2,4,6 trimethylphenol reported is 10.88 at 25°C (from Blackman et al. 1955). On the basis of this result, this substance has a very limited dissociation properties.

Description of key information

Key value for chemical safety assessment

pKa at 20°C:
10.88

Additional information

Dissociation constant was obtained at 25°C.