2-氨基乙醇硫酸酯溶解度的测定与关联

用带激光监视系统的可控升温速率的溶解度测定装置,常压下测定温度范围为288.66-335.46 K用乙醇胺和硫酸作原料合成牛磺酸过程中的中间产物2-氨基乙醇硫酸酯在水、水+乙醇混合溶剂(体积分数为0.1,0.2,0.3,0.4,0.5)中的固液相平衡数据.并用简单模型、Apelblat模型、λh方程模型对实验数据进行关...

Determination and correlation for solubility of 2-aminoethyl hydrogen sulfate

The solid-liquid phase equilibrium data of 2-aminoethyl hydrogen sulfate which is intermediate derived during the synthesis process of taurine with ethanolamine and sulfuric acid as raw materials were measured by using laser monitoring technique in different solvents such as the systems of 2-aminoethyl hydrogen sulfate in water,water+ethanol(volume fraction 0.1,0.2,0.3,0.4,0.5) at atmospheric pressure and 288.66-335.46 K.The solubility models of the model simplified,Apelblat equation,and λh equation were used to correlate the solubility of 2-aminoethyl hydrogen sulfate both in water and aqueous solutions of ethanol,and the models are verified to be in good agreement with the experimental data.The solubility equation is applicable in researched temperature and concentration range,and the correlation results of λh equation are better than those of Apelbla equation and the model simplified.Thus,the determination and correlation of which can provide with phase equilibrium data for developing new synthesis method,engineering design and industry production of 2-aminoethyl hydrogen sulfate and taurine.