RI 5600 Thermodynamic Properties Of Manganese And Its Compounds ? Introduction And Summary

THERMODYNAMIC data for manganese and its inorganic compounds have not been critically surveyed since the work of Maier (31) 3 in 1934. At that time data were lacking or inadequate for many of the important metallurgical compounds. Experimental work, conducted during the intervening years, has supplied so many new thermodynamic values that it is again desirable to examine the available data and compile them into a single publication for handy reference. This paper consists of three main sections. The first summarizes the basic metallurgical thermodynamic data for manganese and its compounds, including heat capacities, entropies, heat contents, temperatures and heats of phase changes, vapor pressures, and heats and free energies of formation. All data available to May 1959 have been considered. The second section contains heats, free energies, equilibrium pressures, and equilibrium constants of reactions of manganese compounds, with special emphasis on metallurgical reactions. The third section supplies basic thermodynamic data for other elements and compounds encountered in metallurgical reactions of manganese, thus making it possible for the reader to conduct thermodynamic calculations without recourse to other literature.