化工进展Issue(7):1803-1807,5.DOI:10.3969/j.issn.1000-6613.2014.07.025
差示扫描量热法表征氯化镁乙醇醇合物结构
A differential scanning calorimetry investigation of magnesium chloride-ethanol adduct
摘要
Abstract
Magnesium chloride–ethanol adducts (MgCl2·nEtOH) prepared over a composition range of n=1.5 to 2.8,were studied with differential scanning calorimetry. These adducts comprised of two stable compounds,MgCl2·2.8EtOH and MgCl2·1.5EtOH,showing endothermic peaks at 115℃ and 155℃ respectively. In addition,the melting point of the magnesium chloride–ethanol adduct which was very sensitive to water would decrease if trace moisture was present in the adduct. And the characteristic peak of the adduct containing trace moisture and MgCl2·2.8EtOH was observed at 100℃. Moreover,during the dealcoholation of the adducts containing trace moisture with EtOH/MgCl2 molar ratio from 1.55 to 2.64,pure MgCl2·2.8EtOH was removed firstly and then the compound formed by trace moisture and MgCl2·2.8EtOH was removed. However,water was not removed all the way.关键词
氯化镁乙醇醇合物/载体/差示扫描量热法/热力学性质/混合物Key words
magnesium chloride-ethanol adduct/catalyst support/differential scanning calorimetry thermal analysis/thermodynamic properties/mixtures分类
化学化工引用本文复制引用
岑为,夏先知,刘月祥,毛炳权..差示扫描量热法表征氯化镁乙醇醇合物结构[J].化工进展,2014,(7):1803-1807,5.基金项目
中国石油化工股份有限公司项目(44-BS1302)。 (44-BS1302)