Registration Dossier
Registration Dossier
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EC number: 481-870-2 | CAS number: -
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
DISSOCIATION CONSTANTS IN WATER
Testing was not possible according to Method 112 of the OECD Guidelines for Testing of chemicals, 12 May 1981 due to the absence of any dissociating functional groups within the pH range of the test methods.
Therefore, estimates were obtained using ACD/I-Lab Web Service (ACD/pKa 8.03), computer based estimation software.
Key value for chemical safety assessment
Additional information
Testing was not possible according to Method 112 of the OECD Guidelines for Testing of chemicals, 12 May 1981 due to the absence of any dissociating functional groups within the pH range of the test methods. Therefore, estimates were obtained using ACD/I-Lab Web Service (ACD/pKa 8.03), computer based estimation software.
Using the software, the following was obtained:
Dissociation Constant |
Result |
Functional Group |
pKa1 |
2.24 ± 0.50 |
Triazine |
pKa2 |
1.81 ± 0.50 |
Triazine |
pKa3- pKa10 |
<0.00 |
8 x Sulphonic acid groups |
From these results, it can be determined that the substance would always be ionised at environmentally relevant pH’s.
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