摘要
研究了丙酸铈的红外光谱，元素含量和热分解反应机理。结果表明，丙酸铈晶体含有5个水分子，其分子式为Ce（CH3CH2COO）3·5H2O。丙酸铈晶体热分解过程分4步完成：首先于40～95℃失去4个水分子；然后于100—115℃再失去1个水分子；继之于120～230％失去1个丙酸根，此时三价铈被氧化成四价；最后于340—390℃失去余下的2个丙酸根。热分解反应的最终产物为二氧化铈。
The infrared spectrum, element contents and reaction mechanism of thermal decomposition for cerium propionate crystal were investigated. The results indicated that cerium propionate crystal contained 5 water molecules, the molecular formula for cerium propionate crystal was Ce （ CH3CH2COO） 3 · 5 H2O. The thermal decomposition process for cerium propionate crystal was 4 steps, 4 water molecules were lost at 40 -95℃, then another water molecule was lost at 100 - 115℃, one of propionates was lost at 120 - 230℃ and the cerium （Ⅲ ） was oxidized to ceric （ Ⅳ ） simultaneity, and the remaining 2 propionates were lost at 340 - 390℃. The final product was ceric dioxide.
出处
《南昌航空大学学报（自然科学版）》
CAS
2008年第2期54-57,共4页
Journal of Nanchang Hangkong University(Natural Sciences)
关键词
丙酸铈
红外光谱
热分解
反应机理
cerium propionate
infrared spectrum
thermal decomposition
reaction mechanism
