摘要
The thermal behavior of ferrous oxalate dihydrate (FeC2O4·2H2O) was studied by thermogravimetry and differential thermal analysis (TGA and DTA). Three steps could be deduced for the decomposition from the TG,DTG and DTA curves obtained. One of the steps was the dehydration, the mass loss was 20.1%(the found value was in good agreement with the calculated value). Mathematical analysis with the integral and differential methods showed that the kinetics of dehydration of FeC2O4·2H2O could be explained by F1 mechanism in nitrogen atmosphere. The kinetic equation of dehydration of FeC2O4·2H2O could be expressed as: dα/dt=6.25×1019[exp(-170.27×103/RT)](1-α)
The thermal behavior of ferrous oxalate dihydrate （FeC2O4·2H2O） was studied by thermogravimetry and differential thermal analysis （TGA and DTA）. Three steps could be deduced for the decomposition from the TG, DTG and DTA curves obtained. One of the steps was the dehydration, the mass loss was 20.1%（the found value was in good agreement with the calculated value）. Mathematical analysis with the integral and differential methods showed that the kinetics of dehydration of FeC2O4·2H2O could be explained by F1 mechanism in nitrogen atmosphere. The kinetic equation of dehydration of FeC2O4·2H2O could be expressed as：dα/dt=6.25×10^19[exp（-170.27×10^3/RT）]（1-α）
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2005年第11期1682-1686,共5页
Chinese Journal of Inorganic Chemistry
基金
湖北省教育厅项目资助(No.2004J001)。
关键词
二水草酸亚铁
脱水
热分解
动力学
ferrous oxalate dihydrate
dehydrate
thermal decomposition
kinetics
