<報文>硫化アンチモン混合溶液の活量について

概要

論文の詳細を見る
Volatility and relative volatility have been newly introduced to explain the volatilization bahaviour of pure Sb_2S_3 and that in its mixtures. Activity of Sb_2S_3 in the mixture can be calculated from the corresponding value of relative volatility, V_r, provided that the summation of mole amounts of gas species for the congruent volatilization of Sb_2S_3,α, is known, as given by α_<Sb_2S_3>=(V_r)^α. The volatility and relative volatility of Sb_2S_3 in the Sb_2S_3-FeS, Sb_2S_3-Cu_2S and Sb_2S_3-PbS mixtures at 973 and 1173K and in the Sb_2S_3-Ag_2S mixture at 1123K were measured by transportation method, and the activities of Sb_2S_3 were calculated based on the above equation with α=1.2. Activity coefficients, γ°_<xs>, at infinite dilution of SbS_<1.5>-FeS, SbS_<1.5>-CuS_<0.5> and SbS_<1.5>-PbS systems (973 and 1173K) and that of SbS_<1.5>-AgS_<0.5> (1123K), which were estimated by extrapolating the plots of log γ_<xs> versus (1-N_<SbS_<1.5>>)^2,are found to be γ°_<FeS> (7.9,6.6); γ°_<CuS_<0.5>> (0.22,0.36); γ°_<PbS> (0.04,0.16); γ°_<AgS_<0.5>> (0.10), respectively.activitytransportation methodSb_2S_3-FeS systemSb_2S_3-Cu_2S systemSb_2S_3-PbS systemSb_2S_3-Ag_2S system
東北大学の論文
1991-12-27