摘要
首次采用分步酸化、分步加料及乙醚萃取法合成了钼钨镓酸Ｈ５ＧａＭｏ６Ｗ６Ｏ４０．１４Ｈ２Ｏ，并用复分解法合成了钐的钼钨镓酸盐ＳｍＨ２ＧａＭｏ６Ｗ６Ｏ４０．１５Ｈ２Ｏ．用元素分析、电位滴定、红外光谱、紫外光谱、Ｘ射线粉末衍射和热分析等方法对合成产物进行了表征．结果表明，合成产物具有Ｋｅｇ－ｇｉｎ结构，且具有很高的热稳定性．
The molybdotungstogallic acid H 5GaMo 6W 6O 40 ·14H 2O was prepared for the first time by thestepwise acidification, and addition of reactants and extraction with ether The samarium molybdotungstogallate SmH 2GaMo 6W 6O 40 .15H 2O was prepared by double decomposition The products were characterized by elemental analysis, potentiometric titration, IR, UV, X-ray powder diffraction and thermal analysis The results show that the products possess the Kegginstructure and high thermostability
出处
《化工冶金》
EI
CAS
CSCD
北大核心
1997年第3期212-215,共4页
基金
辽宁省教委基金
关键词
杂多酸
钼钨镓酸
钼钨镓酸钐
合成
Heteropolyacid, Molybdotungstogallic acid, Samarium molybdotungstogallate, Synthesis
