摘要
本文采用TG—DTG法研究了Y(NO_3)_3·nH_2O(n=5,3)的热分解行为,发现中间产物有低水合物,无水盐和碱式盐,最终产物是Y_2O_3.用Kissinger法计算了一些脱水过程的表观活化能。
The thermal decomposition of Y(NO3)3 nH2O (n=5,3) has been studied with TG-DTG. The reactants, intermediates ,and end-products have also been characterized by IR. It was found that the reactants undergo
a series of decomposition stages, the infermediates are lower hydrates, anhydrous and basic yttrium nitrate, respectively, and the end-products are the oxide, Y2O3. In addition, the kinetic study on some dehydration of the compounds was carried dut. The apparent active energy values of dehydration were calculated with Kissinger method by means of TG-DTG curves at different step-up tempirature rates.
出处
《西北建筑工程学院学报（自然科学版）》
1989年第2期61-65,共5页
Journal of Northwestern Institute of Architectural Engineering
基金
国家自然科学基金资助课题
关键词
硝酸钇水合物
分热解
表观活化能
yttrium nitrate hydrate,thermolysis
apparent active energy.
