Thermochemical characteristics of nicotinamide protolytic equilibria in water-dimethylsulfoxide mixtures

被引：0
|
作者：
K. V. Grazhdan
G. A. Gamov
S. V. Dushina
V. A. Sharnin
机构：
[1] Ivanovo State University of Chemical Technology,
来源：
Russian Journal of Physical Chemistry A | 2012年 / 86卷
关键词：
nicotinamide; protonation; enthalpy; heat effect; dimethylsulfoxide;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The heat effects of nicotinamide protonation in water-dimethylsulfoxide (DMSO) solutions over the concentration range 0–0.75 DMSO mole fractions were determined calorimetrically at 25.00 ± 0.01°C and ionic strength 0.25 (NaClO4). Changes in the enthalpy of protonation as the content of DMSO increased were found to be described by an S-shaped curve. This curve shape was caused by the dynamics of reagent solvation contributions as the concentration of DMSO grew with the predominance of the nicotinamide solvation contribution.
引用
收藏
页码：694 / 696
页数：2
相关论文
共 50 条
  • [1] Thermochemical Characteristics of Nicotinamide Protolytic Equilibria in Water-Dimethylsulfoxide Mixtures
    Grazhdan, K. V.
    Gamov, G. A.
    Dushina, S. V.
    Sharnin, V. A.
    RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2012, 86 (04) : 694 - 696
  • [2] Protolytic Equilibrium Constants of Nicotinic Acid Solutions in Water-Dimethylsulfoxide Mixtures
    Kuranova, N. N.
    Chesnokova, N. A.
    Gushchina, A. S.
    Grazhdan, K. V.
    Sharnin, V. A.
    RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2020, 94 (10) : 2030 - 2033
  • [3] The thermochemical characteristics of solution of phenol and benzoic acid in water-dimethylsulfoxide and water-acetonitrile mixtures
    A. G. Zakharov
    M. I. Voronova
    D. V. Batov
    K. V. Smirnova
    Russian Journal of Physical Chemistry A, 2011, 85 : 408 - 412
  • [4] The thermochemical characteristics of solution of phenol and benzoic acid in water-dimethylsulfoxide and water-acetonitrile mixtures
    Zakharov, A. G.
    Voronova, M. I.
    Batov, D. V.
    Smirnova, K. V.
    RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2011, 85 (03) : 408 - 412
  • [5] SOLVATION IN DIMETHYLSULFOXIDE AND WATER-DIMETHYLSULFOXIDE MIXTURES
    COURTOTCOUPEZ, J
    LEDEMEZE.M
    LAOUENAN, A
    MADEC, C
    JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1971, 29 (01) : 21 - +
  • [6] Thermodynamic characteristics of bromide ions resolvation in water-dimethylsulfoxide mixtures
    Parfenyuk, V.I.
    Chankina, T.I.
    Elektrokhimiya, 2002, 38 (03): : 368 - 370
  • [7] INFLUENCE OF PRESSURE ON EXCESS THERMODYNAMIC CHARACTERISTICS OF WATER-DIMETHYLSULFOXIDE MIXTURES
    Egorov, G. I.
    Makarov, D. M.
    IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA I KHIMICHESKAYA TEKHNOLOGIYA, 2012, 55 (01): : 81 - +
  • [8] STUDY ON SOLVATION IN DIMETHYLSULFOXIDE AND WATER-DIMETHYLSULFOXIDE MIXTURES BY ELECTROCHEMICAL MEASUREMENTS
    COURTOT, J
    DEMEZET, ML
    MADEC, C
    JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1973, 70 (04) : 582 - 583
  • [9] REDOX EQUILIBRIA IN THE CU-2+-CU+-CU SYSTEM IN WATER-DIMETHYLSULFOXIDE (DMSO) MIXTURES
    MALYSZKO, J
    SCENDO, M
    MONATSHEFTE FUR CHEMIE, 1987, 118 (04): : 435 - 443
  • [10] DISSOCIATION OF BENZOIC-ACID IN WATER-DIMETHYLSULFOXIDE MIXTURES
    FIORDIPONTI, P
    RALLO, F
    RODANTE, F
    GAZZETTA CHIMICA ITALIANA, 1974, 104 (7-8): : 649 - 654
12345