Partial Enthalpies of Silicon, Vanadium, Zirconium, Niobium and Molybdenum in Liquid Tin at High Dilution

Abstract

Abstract The partial enthalpies of silicon, vanadium, zirconium, niobium and molybdenum in liquid tin at 1173 K were measured at high dilution by direct reaction calorimetry (drop method) with the help of a Tian-Calvet high-temperature calorimeter. When referred to liquid metals we found h si/kj. mol−1 = 99.4–263.0 x si, hv/kj. mol−1 = 102.8–14.8x v, h zr/kJ. mol−1 = 124.2–18.1x zr,h Nb/kJ .mol−1 = 81.7 + 72.5x Nb and h Mo/kJ. mol−1 = 115.4–159.9x Mo. The limiting partial enthalpies were deduced by extrapolation at infinite dilution. Key Words: Calorimetrypartial enthalpySiVZrNbMoSn