Enthalpies of solution and crystallization of L-ascorbic acid in aqueous solution

被引：16

作者：

Dallos, A ^{[1
]}

Hajos-Szikszay, E ^{[1
]}

Liszi, J ^{[1
]}

机构：

[1] Univ Veszprem, Dept Phys Chem, H-8201 Veszprem, Hungary

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 1998年 / 30卷 / 02期

基金：

匈牙利科学研究基金会;

关键词：

L-ascorbic acid; enthalpy of solution; enthalpy of crystallization;

D O I：

10.1006/jcht.1997.0298

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Enthalpies of solution for (L-ascorbic acid + water) have been measured in a SETARAM C80 D mixing calorimeter over the composition range of homogeneous solutions at temperatures of 298.15 K and 323.15 K. The results are reported in terms of excess molar enthalpies for {(xC(6)H(8)O(6) + (1 - x)H2O} and molar enthalpies of solution for C6H8O6. The temperature and concentration dependence of the enthalpies of solution are given by a Redlich-Kister equation fitted with the experimental data. Enthalpies of crystallization of L-ascorbic acid in aqueous solutions have been measured at the temperatures (293.15, 298.15, and 303.15) K during unseeded programmed crystallization. The molar enthalpies of crystallization for C6H8O6 obtained experimentally agree well with those calculated from partial molar enthalpies of solution data of C6H8O6. (C) 1998 Academic Press Limited.

引用

页码：263 / 270

页数：8

共 50 条

[31] ON THE ACTION OF L-ASCORBIC ACID .1. ANTIKETOGENIC ACTION OF L-ASCORBIC ACID
SHIMIZU, M
JOURNAL OF BIOCHEMISTRY, 1952, 39 (02): : 125 - 131
[32] Mechanism of the oxidation of L-ascorbic acid by the bis(pyridine-2,6-dicarboxylate)cobaltate(III) ion in aqueous solution
Alvin A. Holder
Ross F. G. Brown
Sophia C. Marshall
Vince C. R. Payne
Maria D. Cozier
Walter A. Alleyne
Christopher O. Bovell
Transition Metal Chemistry, 2000, 25 : 605 - 611
[33] Kinetic, mechanistic, and thermodynamic investigations on ferrofluid-catalyzed oxidation of L-ascorbic acid by hydrogen peroxide in acidic aqueous solution
Shukla, RS
Pant, RP
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2003, 268 (01) : 168 - 172
[34] Mechanism of the oxidation of L-ascorbic acid by the bis(pyridine-2,6-dicarboxylate)cobaltate(III) ion in aqueous solution
Holder, AA
Brown, RFG
Marshall, SC
Payne, VCR
Cozier, MD
Alleyne, WA
Bovell, CO
TRANSITION METAL CHEMISTRY, 2000, 25 (05) : 605 - 611
[35] The effect of sodium chloride on thermodynamic paraemeters of ion association for cysteine and methionine with L-ascorbic acid in aqueous solution at different temperature
Kadhim, M. J.
2ND INTERNATIONAL CONFERENCE ON SUSTAINABLE ENGINEERING TECHNIQUES (ICSET 2019), 2019, 518
[36] Kinetics and mechanism of the decomposition of S-nitrosoglutathione by L-ascorbic acid and copper ions in aqueous solution to produce nitric oxide
Smith, JN
Dasgupta, TP
NITRIC OXIDE-BIOLOGY AND CHEMISTRY, 2000, 4 (01): : 57 - 66
[37] Kinetics and mechanism of the oxidation of L-ascorbic acid by the N,N prime -ethylenebis(salicylideneiminato)manganese(III) complex in aqueous solution
Salem, Ibrahim A.
Gemeay, Ali H.
Transition Metal Chemistry, 1996, 21 (02):
[38] Crystal growth of L-ascorbic acid in programmed batch cooling crystallization
Dept. Environ. Eng. Chem. Technol., University of Veszprém, P.O. Box 158, Veszprém, H-8201, Hungary
不详
Hung J Ind Chem, 1600, 4 (297-300):
[39] Crystal growth of L-ascorbic acid in programmed batch cooling crystallization
Bodor, B
Lakatos, BG
HUNGARIAN JOURNAL OF INDUSTRIAL CHEMISTRY, 1999, 27 (04): : 297 - 300
[40] L-ascorbic acid biosynthesis
Smirnoff, N
VITAMINS AND HORMONES - ADVANCES IN RESEARCH AND APPLICATIONS, VOL 61: COFACTOR BIOSYNTHESIS: A MECHANISTIC PERSPECTIVE, 2001, 61 : 241 - 266

← 1 2 3 4 5 →