| P204在不同稀释剂中萃取钙（II）的微量量热法研究 |
| |
| 引用本文： | 于秀芳.P204在不同稀释剂中萃取钙（II）的微量量热法研究[J].山东师范大学学报(自然科学版),2001,16(2):146-149. |
| |
| 作者姓名： | 于秀芳 |
| |
| 作者单位： | 曲阜师范大学化学系, |
| |
| 基金项目： | 山东省自然科学基金资助项目 |
| |
| 摘 要： | 用滴定微量热计测定了P204在氯仿和煤油稀释剂中从硫酸盐水溶液中萃取钙（II）的过程的反应热，结果文献的工作，计算出了不同温度下的萃取平衡常数及有关的热力学函数。
|
| 关 键 词： | 滴定微量量热计 萃取平衡 反应热 热力学函数 钙 萃取剂 |
MICROCALORIMCTRIC STUDY OF THE EXTRACTION OF CALCIUM(H) WITH P204 IN VARIOUS DILUENTS |
| |
| Yu Xiufang.MICROCALORIMCTRIC STUDY OF THE EXTRACTION OF CALCIUM(H) WITH P204 IN VARIOUS DILUENTS[J].Journal of Shandong Normal University(Natural Science),2001,16(2):146-149. |
| |
| Authors: | Yu Xiufang |
| |
| Abstract: | This paper studied the extraction of Ca (H) between aqueous sulphate solution and P204 in chloroform and kerosene using the titrameter microcalorimentric method. We determined heat produced during reaction processes from the power- time curves and identified heat of reaction. For P204 in chloroform extraction of Ca(Ⅱ),△rHθm,298=-52 kJ·mol-1 ,and for P204 in kerosene extraction of Ca(l),△rHθm,29s=384 kJ·mol-1. According to Gibbs Helmhotz equation,△rGθm =-RTlnKθ ,and △rGθm =△rHθm-T△rSθm, we have calculated the extraction equilibrium constants and thermodynamical function(△rGθm ,△rSθm)at different temperature. |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
