五水硫酸铜脱水机理及硫酸铜高温分解的热力学研究  

The study of thermodynamics on the dehydration mechanism of CuSO_4·5H_2O and the heat decomposition of CuSO_4

作　　者：曹新鑫[1,2] 胡蕾阳[1] 樊斌斌[1] 刘玉飞[1] 张崇[1] 

机构地区：[1]河南理工大学材料科学与工程学院,河南焦作454000 [2]河北大学化学与环境工程学院,河北保定071000

出　　处：《精细与专用化学品》2011年第6期30-32,共3页Fine and Specialty Chemicals

摘　　要：利用热分析法研究了五水硫酸铜高温分解过程,并对其脱水机理及硫酸铜在高温下分解机理进行了探索。研究表明:在升温速率为5℃/min时,五水硫酸铜的脱水过程分两个阶段,第一个阶段直接失去四个结晶水,这可能是由于升温速率过快的原因。硫酸铜的高温分解分为两步,第一步生成物为CuO和SO_3,第二步SO_3继续分解生成SO_2和O_2。The dehydration process of CuSO_4？5H_2O was studied using thermal analysis method,dehydration mechanism and the heat decomposition process of CuSO_4 under high temperature were researched.Research shows that in the heating rate for 5℃/min,the dehydration process of CuSO_4？5H_2O can be divided into two stages,the first phase lost four crystal water,this may be due to high heating rate.The decomposition of CuSO_4 require two-stages,the first step generated CuO and SO_3 reaction,then,to generate SO_2 and O_2.

关 键 词：热分析 五水硫酸铜 脱水 高温分解 机理 

分 类 号：O614.121[理学—无机化学]