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  • 1 Buryat Institute of Natural Sciences Siberian Department of Russian Academy of Sciences 670042 Ulan-Ude Russian Federation 670042 Ulan-Ude Russian Federation
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Abstract  

The kinetics and mechanism of the dehydration and decomposition of heteropolyacids of molybdenum, tungsten and vanadium (H3+xYx+M12O40mH2O; Y=Si, P; M=Mo, W) were studied. The data obtained on the dehydration kinetic parameters correlate with the expected structures, of these crystal hydrates, the IR data and X-ray phase analysis.