Thermal decomposition behavior of the rare-earth ammonium sulfate R2(SO4)3·(NH4)2SO4
作者:Tsukasa Nagai、Shinji Tamura、Nobuhito Imanaka
DOI:10.1016/j.jssc.2010.04.038
日期:2010.7
Rare-earth ammonium sulfate octahydrates of R2(SO4)3·(NH4)2SO4·8H2O (R=Pr, Nd, Sm, and Eu) were synthesized by a wet process, and the stable temperature region for the anhydrous R2(SO4)3·(NH4)2SO4 form was clarified by thermogravimetry/differential thermal analysis, infrared, Raman, and electrical conductivity measurements. Detailed characterization of these double salts demonstrated that the thermal
通过湿法合成了R 2(SO 4)3 ·(NH 4)2 SO 4 ·8H 2 O(R = Pr,Nd,Sm和Eu)的稀土硫酸铵八水合物。对于无水R 2(SO 4)3 ·(NH 4)2 SO 4形式,通过热重分析/差热分析,红外,拉曼和电导率测量得到澄清。这些复盐的详细表征表明无水R 2的热稳定性Pr,Nd盐与Sm,Eu盐之间的(SO 4)3 ·(NH 4)2 SO 4不同,这些盐的热分解行为与以前的报道有很大不同。