摘要
采用热重–差式扫描量热法(TG-DSC)分析了不同酸度的盐酸–水合氯化铈饱和溶液中生成的CeCl3·nH2O晶体在空气氛围热分解脱水的过程,热分析表明酸度对CeCl3·nH2O晶体结晶形式有影响,氯化铈饱和溶液在盐酸中生成的CeCl3·nH2O晶体较商品CeCl3·nH2O晶体的热分解多一个恒温脱水失重的过程.X射线粉末衍射(XRD)结果表明此商品CeCl3·nH2O晶体为CeCl3·7H2O,盐酸–水合氯化铈饱和溶液中生成的CeCl3·nH2O晶体为含有不同个数结晶水的混合物.
By employing termogravimetry-differential scanning calorimetry（TG-DSC） method, in the air, the thermal decomposition processes of CeCl3·nH2O crystals which were attained in hydrochloric acid-cerium chloride hydrate saturated solution of different acidity had been analyzed. The result of thermal analysis indicated that acidity had an effect on thermal decomposition processes of CeCl3·nH2O crystals, the CeCl3·nH2O crystals were generated in hydrochloric acid more a constant temperature thermal decomposition process than merchandise CeCl3·nH2O crystals. X-ray diffraction results show that the merchandise CeCl3·nH2O crystals were CeCl3·7H2O, the CeCl3·nH2O crystals which were generated in hydrochloric acid containing different number of crystal hydrate.
出处
《新疆大学学报（自然科学版）》
CAS
2009年第1期87-90,119,共5页
Journal of Xinjiang University(Natural Science Edition)
作者简介
李芳（1981-），女，硕士研究生．
通讯作者：孙都成（1961-），男，副教授，硕士生导师，E-mail：sunducheng@sina．com．
