牛磺酸在无机盐水溶液中溶解度的测定与关联

Determination and correlation of solubility of taurine in inorganic salt aqueous solutions

用带激光监视系统的可控升温速率的溶解度测定装置,常压下测定了294.07～339.72 K下牛磺酸在硫酸钠、亚硫酸钠水溶液中的固液相平衡数据。并用理想溶液方程、λh方程、Apelblat方程对实验数据进行关联,计算的溶解度与实验值符合良好。运用模型方程对所测物系的溶解度进行了关联,将计算值与实验值进行比较,结果表明理想溶液方程、λh方程、Apelblat方程在所研究的温度范围和浓度范围内是适用的,且Apelblat方程对所研究体系优于λh方程和理想溶液方程。牛磺酸在无机盐水溶剂中的溶解度的测定与关联为牛磺酸的工业生产、分离提纯以及理论研究提供了重要的固液相平衡数据。

The solubilities of taurine in different solvents,such as water and water ＋ sodium sulfate solution,were measured by using laser monitoring technique at atmospheric pressure in the temperature range of 294.07—339.72 K.The equation for solubility of ideal solution,Apelblat equation,and λh equation were used to correlate the solubility of taurine in the aqueous solutions of inorganic salts.The models are in good agreement with experimental data.The correlation results of Apelblat equation are better than those of λh equation and the ideal solution equation.The result provides thermodynamic data for new synthesis method,engineering design and industry production of taurine.