Registration Dossier
Registration Dossier
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EC number: 284-892-9 | CAS number: 84989-04-8 The fraction of tar acid rich in 3- and 4-methylphenol, recovered by distillation of low-temperature coal tar crude tar acids.
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
The dissociation constant pKa of tar acids, methylphenol fraction is between 10.1 and 10.3 (read-across).
Key value for chemical safety assessment
Additional information
There is no experimental data of dissociation constant for this substance available.
The value of pKa is obtained by using read-across estimation based on the available data for cresol mixture (mix-cresol CAS 1319 -77 -3).Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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