Kinetics and enthalpy of crystallization of uric acid dihydrate

被引：6
作者：
Sadovska, Galina [1 ]
Honcova, Pavla [1 ]
Sadovsky, Zdenek [1 ]
机构：
[1] Univ Pardubice, Fac Chem Technol, Dept Inorgan Technol, Pardubice 53210, Czech Republic
来源：
THERMOCHIMICA ACTA | 2013年 / 566卷
关键词：
Uric acid dihydrate; Calorimetry; Crystallization; Kinetics; Enthalpy; ARTIFICIAL URINE; SOLUBILITY; PRECIPITATION; DISSOLUTION; STONE; URATE;
D O I：
10.1016/j.tca.2013.06.005
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The kinetics of crystallization of uric acid dihydrate in aqueous solution with a constant ionic strength 0.3 mol dm(-3) NaCl and at thermodynamic and physiological temperature (25 and 37 degrees C) was studied using isoperibolic reaction twin calorimeter. The enthalpy of crystallization Delta H-cr = -47.3 +/- 0.9 and -46.2 +/- 1.4 kJ mol(-1)and kinetic constant k(g) = 2.0 x 10(-8) and 9.6 x 10(-8) m(4) s(-1) mol(-1) were determined at 25 and 37 degrees C, respectively. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：211 / 213
页数：3
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