Density and Electrical Conductance of Calcium Nitrate Tetrahydrate + Acetamide Melt
Density and electrical conductance of the calcium nitrate tetrahydrate+acetamide melt were measured as functions of temperature and mole fraction of acetamide. On the basis of the additivity of molar volume, an alternative method has been suggested for estimating the densities of high- or low-melting anhydrous inorganic and organic salts using a suitable hydrate melt as solvent. Molar conductance data were analyzed by using the Vogel-Tammann-Fulcher equation. At ambient temperature the specific conductance of molten calcium nitrate tetrahydrate decreases by the addition of acetamide as was the case with the addition of KNO 3 −
Simulated models of four existing types of alkali metal thermoelectric converter (AMTEC) devices were chosen for this study. Each cell model was analyzed to determine whether metal is dissolved by sodium from cell materials and is deposited in regions that can degrade performance of the cell. Results of the study show that each cell model has at least one failure mode caused by dissolution of metal from the AMTEC surfaces.