Evaluation of the Vaporization Enthalpies and Liquid Vapor Pressures of (R)-Deprenyl, (S)-Benzphetamine, Alverine, and a Series of Aliphatic Tertiary Amines by Correlation Gas Chromatogr

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• 作者：Chase Gobble ; John Vikman ; James S. Chickos
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2014
• 出版时间：August 14, 2014
• 年：2014
• 卷：59
• 期：8
• 页码：2551-2562
• 全文大小：328K
• ISSN：1520-5134

文摘

The vaporization enthalpies at T/K = 298.15 and vapor pressures from T/K = (283 to 313) of a series of tertiary aliphatic amines ranging in size from 12 to 24 carbons are evaluated using the literature values for triethylamine, tributylamine, N,N-dimethylbenzylamine, N,N-dimethyloctylamine, and N,N-dimethyldodecylamine by correlation gas chromatography. The vaporization enthalpies and vapor pressures evaluated are (螖b>lb>^gHb>mb>(298.15 K/kJ路mol^鈥?, p/Pa (298.15 K)): triisobutylamine (52.3 卤 2.2, 113), tri-n-butylamine (58.0 卤 1.9, 28), N,N-dimethyltetradecylamine (77.3 卤 1.9, 0.091), N,N-dimethylhexadecylamine (84.8 卤 1.0, 0.011), tribenzylamine (92.4 卤 1.4, 5.1路10^鈥?), tri-n-octylamine (100.1 卤 1.4, 1.4路10^鈥?). These amines were used to evaluate the following vaporization enthalpies and vapor pressures (螖b>lb>^gHb>mb>(298.15 K kJ路mol^鈥?, p/Pa (298.15 K)): (R)-deprenyl (64.3 卤 2.2, 2.5); (S)-benzphetamine (77.2 卤 0.7, 0.04); and alverine (89.3 卤 0.2, 1.4路10^鈥?). The solid鈥搒olid and solid to liquid phase transitions of tribenzylamine were also measured; 螖b>crb>^crHb>mb>(342.5 K)/kJ路mol^鈥? = (1.1 卤 0.1); 螖b>crb>^lHb>mb>(365.6 K)/kJ路mol^鈥? = (23.0 卤 0.1). Adjusted to T/K = 298.15 and combined with the vaporization enthalpy at this temperature, the sublimation enthalpy resulted as 螖b>crb>^gHb>mb>(298.15 K)/kJ路mol^鈥? = (111.3 卤 2.1).