Potentiometric and spectroscopic determination of acid dissociation constants of some phenols and salicylic acids

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Date

1997

Authors

Türkel, Naciye

Journal Title

Journal ISSN

Volume Title

Publisher

Scientific Technical Research Council Turkey

Abstract

The dissociation constant of the catechol derivatives 4-nitrocatechol (NCAT), 2,3-dihydroxybenzoic acid (2,3-DHBA), 3,4-dihydroxybenzoic acid (3,4-DBHA), 3,4-dihydroxyhenylacetic acid (3,4-DPHA) and 3,4-dihydroxycinnamic acid (3,4-DHCA) were identified in 0.1M NaClO4 ionic medium, at t=25 degrees C, by potentiometry. In addition, the first and second dissociation constants of the salicylic acid derivatives 5-nitrosalicylic acid (5-NSA), 4-hydroxysalicylic acid (4-HSA) 5-nitrosalicylic acid (5-HSA) were also determined by potentiometry. Furthermore, the second acid dissociation constants of these ligands were evaluated in I=0.1M NaClO4 ionic medium, at a temperature of 25 degrees C by computer analysis of spectroscopic data.

Description

Keywords

Acid dissociation constants, Catechol derivatives, Salicylic acid derivatives, Catechol

Citation

Aydın, R. vd. (1997). "Potentiometric and spectroscopic determination of acid dissociation constants of some phenols and salicylic acids". Turkısh Journal of Chemıstry, 21(4), 428-436.

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