Transposed temperature drop calorimetry at 977 K was used to study the energetics of natural manganese dioxides (pyrolusite and ramsdellite) and oxyhydroxides (manganite and groutite). The structures of these minerals are ...
The enthalpy of drop solution of a quickly quenched, clear, titanite glass sample and several synthetic, polycrystalline, samples was measured in a Calvet-type calorimeter in 2PbO.B 2 O 3 solvent at 702 degrees C. The ...