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Thermal analysis has been performed of xerogels obtained by encapsulation of sodium thiosulfate (systems I and II), glycerol with I2/KI (system III) and urea with I2/KI (system IV) in silica gel. DTA, TG and DTG of the xerogels with thiosulfate differed markedly depending on the thiosulfate content. At the 22% thiosulfate content in the original silicic acid solution used for the preparation of the...
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