"A static manometric method was used to find the equilibrium reaction pressure as a function of temperature for the reaction:
11 ZnSO4 + ZnS → 4 (ZnO·2ZnSO4) + 4 SO2
From the reaction pressures, the standard free energy of the reaction was found to be:
ΔF⁰ = + 51,320 - 36.68 T
Using thermodynamic data for ZnSO4, ZnS and SO2 the standard free energy of formation of the basic salt ZnO·2ZnSO4 was found to be:
ΔF⁰ = - 377,000 - 65.9 T cal/mole
in the temperature range 350 to 420⁰ C.
Above 420° C. the reaction,
2 ZnS + 3 (ZnO·2ZnSO4 ) → 11 ZnO + 8 SO2 proceeds"--Abstract, page ii.
Larson, Andrew H.
Moore, Robert E., 1930-2003
Leighly, Hollis P., 1923-2004
Tappmeyer, Wilbur P.
Materials Science and Engineering
M.S. in Metallurgical Engineering
Missouri School of Mines and Metallurgy
v, 43 pages
© 1963 William L. Hallerberg, All rights reserved.
Thesis - Open Access
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Hallerberg, William L., "Zinc sulfide-sulfate reaction pressures" (1963). Masters Theses. 2810.