摘要
用热分析的方法(TG,DTA)对十水草酸镧的热分解机理进行了研究,测定了中间产物的红外光谱,从而提出了十水草酸镧热分解的5个步骤:10水物→9水物→2水物→无水物→一碳酸二氧盐→氧化物.
The thermal decomposition of lanthanum oxalate decahydrate, La2(C2O4)3·10H2O, was studied by thermogravimetry (TG) and differential thermal analysis (DTA). Theproducts at some stages of decomposition were characterized by infra-red absorption sepectroscopy. The following five steps were expected to take place during the thermal decomposition of lanthanum oxalate decahydrate: decahydrate→enneahydrate→dihydrate→anhydrate→dioxymonocarbonate→oxide.
出处
《武汉大学学报(自然科学版)》
CSCD
1996年第2期163-166,共4页
Journal of Wuhan University(Natural Science Edition)
关键词
草酸镧
热分解
TG
DTA
lanthnum oxalate
thermal decomposition
TG, DTA