Чеботарьов, Олександр МиколайовичChebotaryov, Aleksandr N.Snihur, Denys VasylovychЧеботарёв, Александр Николаевич2018-03-072018-03-072016Russian Journal of General Chemistryhttps://dspace.onu.edu.ua/handle/123456789/12992Acid-base properties of morin in aqueous solutions have been studied by means of chemical tristimulus colorimetry, and the ionization constants have been determined. The pK values have been assigned to the corresponding functional groups, and their dissociation scheme has been suggested. Diagram of distribution of ionic and molecular forms of morin at pH 1–13 has been constructed. Spectral parameters of equilibrium acid-base forms of morin have been determined.enmorinchemical tristimulus colorimetryionization constantdistribution diagramArticle