六次甲基四胺合钴(Ⅱ)配合物失水动力学研究  

Kinetics of Dehydration of Hexamethylenetetramine Complexes with Cobalt(Ⅱ)

作　　者：刘进全[1] 高艳阳[1] 

机构地区：[1]中北大学理学院,山西太原030051

出　　处：《中北大学学报（自然科学版）》2011年第4期486-489,共4页Journal of North University of China(Natural Science Edition)

摘　　要：以六水合二氯化钴与六次甲基四胺为原料合成了超分子化合物[Co（H2O）6]Cl2·2{（CH2）6N4}·4H2O,用Vario EL元素分析仪对合成的产物进行了表征,采用非等温热重分析法对其失水反应过程进行了研究,并分别用Freeman-Carroll法和Coats-Redfern法分析计算了其热分解失水反应的动力学参数,两种方法得出的结果基本一致.结果表明：[Co（H2O）6]Cl2·2{（CH2）6N4}6·4H2O在44℃左右开始发生分解,约在82℃基本完全分解,失去10分子水.整个失水反应过程一步完成,相应的表观活化能为81.9~91.4 kJ·mol-1,其热分解反应级数n为0.67.反应活化能较小,化合物失水反应很容易进行.The dehydration reaction of Cl2·2{（CH2）6N4}·4H2O was studied by TG-DTG technique.The compound substance was attributed through Vario EL elemental analyzer.The process of dehydration reaction was analyzed by using the thermogravimetric analysis.The activation energy of the dehydration reaction was calculated by means of the Freeman-Carroll and the Coats-Redfern methods respectively which reached the same results.It is found that the compound is dehydrated in temperature from 44 ℃ to 82 ℃,losing 10 molecules water.The apparent activation energy is 81.9~91.4 kJ·mol-1.The level of this dehydration reaction is n=0.67.The process go easily because of the low reaction energy.

关 键 词：钴(Ⅱ) 六次甲基四胺 热分解动力学 

分 类 号：O643.12[理学—物理化学]