2,4-二氯苯酚在水中溶解度的测定及关联  

Studies on the solid-liquid equilibrium of 2,4-dichlorophenol in water

作　　者：贾青竹[1] 马沛生[1] 王昶[2] 王强[1] 马少娜[2] 

机构地区：[1]天津大学化工学院,天津300072 [2]天津科技大学环境科学与工程系,天津300222

出　　处：《化学工程》2006年第8期44-47,共4页Chemical Engineering(China)

摘　　要：在pH值为6.2或9.3条件下,采用综合法测定了2,4-二氯苯酚在水中的固液平衡数据,分别用经验方程、W ilson方程、固液平衡λH方程对实验数据进行了拟合处理。结果说明,在pH值为9.3条件下,2,4-二氯苯酚的水溶解度增大;W ilson方程、λH方程模型均能很好地关联2,4-二氯苯酚的水溶解度数据,pH=9.3时平均相对误差分别为3.00%,1.17%,其中λH方程拟合效果更好。Solid-liquid equilibrium data of 2,4-dichlorophenol in water were measured by the polythermal method when the pH was 6.2 or 9.3. Empirical formula, Wilson equation and λH equation were used to regress the solubility data. The results show that the solubility of 2,4-dichlorophenol in water is increased when the pH is 9.3. Both Wilson equation and λH equation can regress the solubility data well, and the relatively average errors are 3.00%, 1.17% respectively at pH =9.3. Also, it indicates that λH equation is most suitable for description of the solid-liquid equilibrium of 2,4-dichlorophenol.

关 键 词：综合法 2 4-二氯苯酚 固液平衡 WILSON方程 λH方程 

分 类 号：O625.31[理学—有机化学]