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

✍ Scribed by Piotr Szterner; Miron Kaminski; Anna Zielenkiewicz

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
63 KB
Volume
34
Category
Article
ISSN
0021-9614

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✦ Synopsis

Uracil, 5-fluorouracil, 5-chlorouracil, 5-bromouracil and 6-chlorouracil (6-chloro-2,6-dihydroxypyrimidine)

, 5-iodouracil, with molar masses of 0.1121 kg β€’ mol -1 , 0.1301 kg β€’ mol -1 , 0.1465 kg β€’ mol -1 , 0.1910 kg β€’ mol -1 , 0.1465 kg β€’ mol -1 , 0.2380 kg β€’ 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.

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