摘要
研究了四元体系CsClLaCl3HClH2O(25℃,[HCl]=13%(wt),23%(wt)和CsClLaCl3HAcH2O(30℃,[HAc]=42%(wt))的平衡态的溶度数据,并绘制了相应的溶度图,共得到了CsCl·LaCl3·4H2O、2CsCl·LaCl3·2H2O和3CsCl·LaCl3·3H2O3种化合物。对得到的新相进行了热分析,X射线粉末衍射及偏光性质的测定。依据相化学关系对Meyer反应的机理提出了新的解释,并设计了CsCl∶LaCl3=1∶2(2∶1,3∶2,3∶1)(摩尔比)的化合物的合成方法。
The solubilities of the saturated solution of quarternary system: CsCl LaCl 3 HCl H 2O(25 ℃, =13%(wt), 23%(wt) and CsCl LaCl 3 HAc H 2O(30 ℃, =42%(wt)) have been studied. The corresponding equilibrium diagrams were constructed. New compounds CsCl·LaCl 3·4H 2O, 2CsCl·LaCl 3·2H 2O, 3CsCl·LaCl 3·3H 2O were obtained from the equilibrium systems, and the X ray powder diffraction. TG DTG, DTA properties of the compoundes were studied respectively. The mechanisms of Meyer′s reactions were further interpreted. Based on the new compounds obtained from the equilibrium systems, new ways of synthesizing the compounds with: CsCl∶LaCl 3=1∶2, 2∶1, 3∶2, 3∶1 were designed.
出处
《中国稀土学报》
CAS
CSCD
北大核心
1997年第2期102-105,共4页
Journal of the Chinese Society of Rare Earths
基金
国家自然科学基金
陕西省自然科学基金
关键词
氯化铯
氯化镧
相图
溶度
Rare earths, Cesium chloride, Lanthanum chloride, Hydrochloride acid, Acetic acid, Design of synthesizing