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| 水合盐的几种脱水过程探讨 | |
| 引用本文： | 冯海燕,刘晓地,葛艳蕊,武克忠,张建军.水合盐的几种脱水过程探讨[J].无机化学学报,2000,16(1):89-96. |
| 作者姓名： | 冯海燕 刘晓地 葛艳蕊 武克忠 张建军 |
| 作者单位： | 1. 河北师范大学化学系,石家庄,050016 2. 河北科技大学化工系,石家庄,050011 3. 河北师范大学试验中心,石家庄,050016 |
| 基金项目： | 河北省教委专项科研项目!(No.97116) |
| 摘 要： | 通过差热/热重联机 (DTA/TGA)和差示扫描量热法 (DSC)测定几种盐(Na2SO4·10H2O、CuSO4·5H2O、Na2S2O3·5H2O)的失水过程 ,对水合盐脱水过程几种可能的类型进行探讨。研究表明低温 (100℃以下 )水合盐脱水有两种类型 ,一种直接失去气态水 ,另一类先脱去液态水再进一步变为气态水。并从热力学上理论分析两类脱水过程的原因。 |
| 关 键 词： | 水合盐 脱水过程 热分析 热力学 DSC DTA／TGA |
| 收稿时间： | 6/8/1999 12:00:00 AM |
| 修稿时间： | 1999/8/24 0:00:00 |
A Study on the Dehydration of Some Hydrated Salts |
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| FENG Hai-Yan,LIN Xiao-Di,GE Yan-Rui,WU Ke-Zhong and ZHANG Jian-Jun.A Study on the Dehydration of Some Hydrated Salts[J].Chinese Journal of Inorganic Chemistry,2000,16(1):89-96. | |
| Authors: | FENG Hai-Yan LIN Xiao-Di GE Yan-Rui WU Ke-Zhong and ZHANG Jian-Jun |
| Institution: | Department of Chemistry, Hebei Normal University, Shijiazhuang 050016,Department of Chemistry, Hebei Normal University, Shijiazhuang 050016,Department of Chemical Engineering, Hebei Science and Technology University, Shijiazhuang 050011,Department of Chemistry, Hebei Normal University, Shijiazhuang 050016 and Experiment Centre, Hebei Normal University, Shijiazhuang 050016 |
| Abstract: | Various possible types of dehydration of hydrated salt (Na2SO4·10H2O,CuSO4·5H2O,Na2S2O3·5H2O) have been studied by means of on line Differential Thermal Analysis and Thermogravimetry(DTA/TG) and Differential Scanning Calorimetry(DSC).The experimental results showed that there is two different type of dehydration for studied salt. In one case, the hydrated salt loses water vapordirectly, and in the other case,which loses liquid water first and then the losing water is transformed into vapor. For those cases were discussed in terms of thermodynamics. |
| Keywords: | hydrated salt dehydration thermal analysis thermodynamics |
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