12—硅钼酸降解产物SiMo_(11)铵盐的合成

Prepartion and Properties of the Unsaturated Heteropoly 11-Molybdosilicate Compound

在对SiMo_(12)杂多酸降解过程的研究中,首次从H_4SiMo_(12)O_(40)直接降解合成出其降解产物(NH_4)_8[SiMo_(11)O_(39)]·14H_2O。经组成分析,确认其为SiMo_(11)铵盐。利用紫外光谱分析、红外光谱分析、x射线粉末衍射、电位滴定、tga—dta热分析、薄板层析等现代分析手段对合成产物的性质进行了研究。

The (NH_4)_8SiMo_(11)O_(39)·14H_2O derived directly from the degration of 12-Molybdosilicic acid has been prepared. Ultra-violet spectra, infeared spectra, tga-dta thermal analysis, thin layer chromatography, potential titration and x-ray diffraction are used to study the properties of this compound.