节点文献
RE(NO3)3·[CH3CH(NH2)COOH]4·H2O的燃烧热
Determination of Combustion Energies and the Standard Enthalpies of Formation for RE(NO3)3·(CH3CHNH2COOH)4·H2O
【摘要】 用转动弹量热计测定了稀土(Ce、Nd、Sm、Eu、Gd、Dy、Er、Yb)硝酸盐与DL-a-丙氨酸(1:4)配合物的燃烧热-△cu(J·g ̄(-1)),其结果依次为9596.1,8874.7,8710.1,8937.3,8961.3,8751.8,8700.0和8656.4。据此计算的生成焓-△fH(kJ·mol ̄(-1))分别为3393.53,3671.37,3740.82,3495.21,3497.52,3626.79,3641.64和3568.58。这些结果不但为稀土元素的三分组提供了可靠的实验依据,亦发现了RE(NO3)3·(CH3CHNH2COOH)4·H2O配合物稳定性之变化规律与稀土原子序数的关系。
【Abstract】 The paper describes the determination of the combustion energies for the solid coordination compounds of RE(NO3)3·(CH3CHNH2COOH)4·H2O (RE=Ce, Nd, Sm , Eu, Gd, Dy, Er, Yb).Their the standard enthalpies of combustion and formation were calculated. The regularities of the enthalpies with the change of the atomic number of rare earth elements were discussed.
【关键词】 稀土硝酸盐;
DL-a-丙氨酸;
配合物;
标准生成焓;
转动弹量热计;
【Key words】 are earth nitrate; DI-α-alanine; Standard enthalpy of formation; Rotating-bomb calorimeter;
【Key words】 are earth nitrate; DI-α-alanine; Standard enthalpy of formation; Rotating-bomb calorimeter;
【基金】 国家自然科学基金
- 【文献出处】 中国稀土学报 ,JOURNAL OF THE CHINESE RARE EARTH SOCIETY , 编辑部邮箱 ,1996年01期
- 【分类号】O643.21
- 【被引频次】5
- 【下载频次】54