The calorimetric investigation of the graphite-HNO3-R system (R = CH3COOH, H2SO4)статья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The interactions of highly oriented pyrolytic graphite with HNO3-R (R = CH3COOH, H2SO4) solution were investigated by Calvet type calorimeter at 305.5 K and X-ray diffraction. It was shown that in the graphite-98% HNO3-100% CH3COOH system the enthalpy of the formation and the stage number of graphite nitrate depends on HNO3 percentage in the solution. Calorimetric investigation of the graphite-98% HNPO3-96% H2SO4 system demonstrated that the shape of the heat flow curves corroborates the co-intercalation of HNO3 and H2SO4 into graphite. It was established that the formation of the first stage of ternary compounds of variable composition takes place.