论文部分内容阅读
采用Otsuki-Williams式汽液平衡釜测定了甲酸-乙酸-水-醋酸钠体系在9.866×10~4Pa下汽液平衡数据。醋酸钠的加入量为2mol/(kg溶剂)。结果表明:醋酸钠对体系起物理化学作用,也起化学作用。它涉及到了两种盐对各组分的盐溶、盐析和盐效应的不规则现象。根据实验数据,绘制了汽液平衡相图、各组分挥发度等于1的曲线和甲酸-乙酸在体系中相对挥发度等于1的曲线,用以判别、分析盐效应的作用。
The vapor-liquid equilibrium data of formic acid-acetic acid-water-sodium acetate system at 9.866 × 10-4Pa were measured by Otsuki-Williams vapor-liquid equilibrium kettle. Sodium acetate was added in an amount of 2 mol / (kg solvent). The results show that: sodium acetate on the system from the physical and chemical effects, but also play a chemical role. It deals with the irregularities of salt, salinization and salt effects of the two salts on the components. According to the experimental data, the vapor-liquid equilibrium phase diagram is drawn, and the curves of volatility of each component and the relative volatility of formic acid-acetic acid in the system equal to 1 are plotted to judge and analyze the effect of salt effect.