一种测量碳氢化合物在水溶液中溶解度的方法。
A Method of Measuring the Solubilities of Hydrocarbons in Aqueous Solutions.
作者信息
Brown Robert L, Wasik Stanley P
机构信息
Institute for Materials Research, National Bureau of Standards, Washington, DC 20234.
出版信息
J Res Natl Bur Stand A Phys Chem. 1974 Jul-Aug;78A(4):453-460. doi: 10.6028/jres.078A.028.
An apparatus is described which measures the equilibrium distribution of a hydrocarbon between a gas phase and a liquid water phase. The method involves a multiple equilibration procedure which requires the analysis of only the gas phase. Gas-liquid chromatography was used for the hydrocarbon analysis because of its high sensitivity and selectivity. Supplemented by vapor pressure data, the observed distribution can be used to calculate the solubility of the hydrocarbon in the liquid phase. This was done for benzene, toluene, and ethylbenzene in distilled water over the temperature range 5 to 20 °C and in an artificial seawater over the temperature range 0 to 20 °C. The various factors affecting the accuracy of the results are discussed in detail.
本文描述了一种用于测量碳氢化合物在气相和液态水相之间平衡分布的装置。该方法涉及多平衡程序，仅需对气相进行分析。由于气相色谱具有高灵敏度和选择性，因此用于碳氢化合物分析。辅以蒸气压数据，观察到的分布可用于计算碳氢化合物在液相中的溶解度。针对苯、甲苯和乙苯在5至20°C温度范围内的蒸馏水以及0至20°C温度范围内的人工海水中进行了此项操作。详细讨论了影响结果准确性的各种因素。
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