氧气在醋酸水溶液中的溶解度估算  

Solubility prediction for oxygen in aqueous acetic acid

作　　者：徐海波[1] 王勤波[1] 李希[1] 

机构地区：[1]浙江大学化工系,浙江杭州310027

出　　处：《聚酯工业》2005年第5期18-21,共4页Polyester Industry

摘　　要：将水作为溶剂主体,通过热力学分析导出了氧气在纯水中的溶解度模型。将醋酸作为有机溶剂添加剂,用Stechenov关联式表征了醋酸对氧气在水中的溶解度的影响。模型参数由文献数据回归得到,模型计算得到的溶解度值与文献报导的实验值进行比较吻合良好。建立的氧气在醋酸水溶液中的溶解度机理模型可用于关联和预测不同醋酸浓度下不同温度和压力时氧气在醋酸水溶液中的溶解度。The chemical potential, entropy and partial molar heat capacity of dissolved oxygen were combined to develop a rigorous thermodynamic model to estimate saturated concentration of oxygen in pure water. The Setchenov relation was used to predict the effect of acetic acid on the solubility of oxygen in water. The model parameters were regressed from the literature data. The solubility data of oxygen in both pure water and aqueous acetic acid from the published experimental data were consistent with the solubility data estimated by the developed solubility model, which indicated that the thermodynamic model was applicable for the estimation of solubility for oxygen in aqueous acetic acid at different concentration, different temperature and pressure.

关 键 词：PTA 氧气 溶解度 

分 类 号：O613.3[理学—无机化学]