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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。
In the study of the degradation of SiMo 12 heteropoly acid, the degradation product (NH 4) 8 [SiMo 11 O 39] 14H 2 O was synthesized directly from H 4 SiMo 12 O 40 for the first time. The composition analysis confirmed that it is SiMo_ (11) ammonium salt. The properties of the synthesized products were studied by means of modern analytical methods such as ultraviolet spectrum analysis, infrared spectrum analysis, x-ray powder diffraction, potentiometric titration, tga-dta thermal analysis and thin layer chromatography.