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Investigation of 8-mercaptoquinoline (thiooxine) and its derivatives. 107. Absorption, spectra, ionization constants and distribution of 5,8-dimercaptoquinoline between organic solvents and water

J. Asaks, S. Rapiová, M. Zikmund, and J. Bankovskis

Institute of Inorganic Chemistry, Academy of Sciences of the Latvian SSR, 226 934 Riga

 

Abstract: Absorption spectra of 5,8-dimercaptoquinoline in water and organic sol- vents have been studied. Ionization constants (pK1 = 1.74; pK2 = 4.64; pK3 = = 9.41) at ionic strength 0.1 mol dm -3 and temperature 20°C and also distri- bution constants of the reagent in two-phase systems chloroform—water (pKD = 2460), benzene—water (pKD = 930), and isooctane—water (pKD = 33) have been determined.

Full paper in Portable Document Format: 361a65.pdf

 

Chemical Papers 36 (1) 65–71 (1982)

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