不同温度和酸度条件下稀土草酸盐溶解度的研究  

Studies on the Solubility of Lantkanide Oxalates in Different Conditions

作　　者：赵儒铭 王桂玲[1] 周百斌[1] 

机构地区：[1]湖北宜昌大学化学工程系,哈尔滨师范大学生物系,哈尔滨师范大学化学系

出　　处：《稀土》1995年第3期12-16,共5页Chinese Rare Earths

摘　　要：采用过饱和平衡法详细研究了稀土草酸盐在不同温度（２０℃、３０℃、４０℃、５０℃、６０℃、７０℃、８０℃、９０℃）和不同酸度（０．０５０ｍｏｌ／Ｌ、０．１０ｍｏｌ／Ｌ、０．５０ｍｏｌ／Ｌ　１．００ｍｏｌ／Ｌ）条件下的溶解度，通过对数据的综合分析，总结出稀土草酸盐在不同条件下溶解度的变化规律，同时还对影响稀土草酸盐溶解性的因素─—温度、酸度、镧系收缩进行了初步探讨。The solubility of lanthanide oxalates in hydrochloric solutions with different acidities(0. 05mol/L,0.10mol/L,0. 50mol/L,1. 00mol/L)has been studied at different tempera-tures from 20℃ to 90℃ by using supersaturation-equilibrium method. From the experimental re-sults the law of the change in the solubility of lanthanide oxalates in different conditions was sum-maried.The various effects of temperatures,acidities and lanthanide contraction on the solubility of lanthanide oxalates have been discussed;

关 键 词：稀土 草酸盐 溶解度 过饱和平衡法 

分 类 号：O614.33[理学—无机化学] O645.12[理学—化学]