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EC number: 926-000-9
CAS number: 1180524-77-9
The dissociation constant of the substance is affected by its constitutents 2-(2-hydroxy-ethylamino)ethanol and 4,4'-isopropylidenediphenol. The pKa of 2-(2-hydroxy-ethylamino)ethanol and 4,4'-isopropylidenediphenol is in the range of 8.71 to 15.12 and, therefore, under environmental conditions only 2-(2-hydroxy-ethylamino)ethanol will partly be available in a dissociated form.Formaldehyde and propylene dioxide do not contain any chemical moiety being capable to dissociate.
As the determination of a
dissociation constant for a UVCB substance might be hampered due to the
complex nature of the substance, the dissociating properties can be
described on the basis of pKa values of known constituents as well.
Therefore, the pKa values of
2-(2-hydroxy-ethylamino)ethanol and 4,4'-isopropylidenediphenol, being
constituents with dissociating properties, were reported as
representatives for the whole substance. Formaldehyde and propylene
dioxide do not contain any chemical moiety being capable to dissociate.
Therefore, no pKa value can be reported for that constituent.
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