Vapour pressures, molar enthalpies of sublimation and molar enthalpies of solution in water of five halogenated derivatives of uracil

被引：29
|
作者：
Szterner, P [1 ]
Kaminski, M [1 ]
Zielenkiewicz, A [1 ]
机构：
[1] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2002年 / 34卷 / 07期
关键词：
enthalpy of sublimation; enthalpy of solutions; enthalpy of hydration; vapour pressure; halogenated derivatives of uracil;
D O I：
10.1006/jcht.2000.0987
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Uracil, 5-fluorouracil, 5-chlorouracil, 5-bromouracil and 6-chlorouracil (6-chloro-2,6-dihydroxypyrimidine), 5-iodouracil, with molar masses of 0. 1121 kg . mol(-1), 0.1301 kg . mol(-1), 0.1465 kg . mol(-1), 0.1910 kg . mol(-1), 0.1465 kg . mol(-1), 0.2380 kg . mol(-1) respectively, were purified by repeated crystallization. The mass fraction purity of each substance was greater than 0.99, as determined by a Du Pont 910 differential scanning calorimeter with a 1090 thermal analyzer. (C) 2002 Elsevier Science Ltd, All rights reserved.
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收藏
页码：1005 / 1012
页数：8
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