1922
DOI: 10.1021/ja01422a014 View full text |Buy / Rent full text
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Abstract: This reaction which is still but little known is reversible, the reverse reaction being the basis of a familiar method of preparing sulfur dioxide. Since measurements of the equilibrium constant for this reaction would, when combined with existing data, give material for the calculation of the free energy of formation of aqueous sulfuric acid, and since, taken in connection with the projected measurements of Randall of the free energy of the reactions 2Hg(l) +2HzS04(aq) = HgzSOl(s) +SOz(g) +2H20(1) and Hz(g) +… Show more

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“…The Raman band intensities can be evaluated by comparison with the internal water •standard and correspond to 0.25 M sulfate and 0.30 M bisulfate solutions. Our observations are consistent with Bichowsky's equilibrium studies (Bichowsky, 1922), however, we have found that at 80°C reaction (I) proceeds about halfway in one day or less, while Bichowsky observed that at 312°C equilibrium in the opposite direction required at least three to seven days.…”
Section: Eq I Isupporting
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rupbmjkragerfmgwileyiopcupepmcmbcthiemesagefrontiersapsiucrarxivemeralduhksmucshluniversity-of-gavle
“…The Raman band intensities can be evaluated by comparison with the internal water •standard and correspond to 0.25 M sulfate and 0.30 M bisulfate solutions. Our observations are consistent with Bichowsky's equilibrium studies (Bichowsky, 1922), however, we have found that at 80°C reaction (I) proceeds about halfway in one day or less, while Bichowsky observed that at 312°C equilibrium in the opposite direction required at least three to seven days.…”
Section: Eq I Isupporting
“…According to earlier work (Bichowsky, 1922) reaction (II) takes sixty days to reach equilibrium at 260°C. However, using high purity sulfur, we observed already after 24 hrs at 190°C the Raman spectrum in Figure lb.…”
Section: Eq I Imentioning
“…Other electrolytes were prepared by mixtures of these two solutions; these solutions are denoted by the percentage of 0.50 mol L −1 H 2 SO 4 . The solutions were purged with N 2 for deaeration and then saturated with SO 2 by bubbling the gas (White Martins) for 30 min, reaching a concentration of 16 mol L −1 . The potential perturbation programs were controlled by an Autolab potentiostat/galvanostat PGSTAT30 (Eco Chemie).…”
Section: Methodsmentioning
“…Schwefelsaure in Goldrohr- (39)) kontrolliert. In Zusatzversuchen (in Anlehnung an Bichowski (22)) wurde eine angesauerte Losung von Na-S und Na ZS04 gemaf der GIeichung (8) akzeptator. Der Vollstandigkeit halber sei erwahnt, daB Hemley et al [40] bei der Alunitsynthese mit K ZS04 zwischen 200 und 380°C zusatzlich KzSO s eingesetzt haben, urn die anorganische Reduktion von Sulfat zu verhindern.…”
Section: Eigene Experimenteunclassified