Solubilities of CO_2 in Binary Alkali Germanate Melts

摘要

A thermogravimetric technique was employed to measure CO_2 solubilities in binary R_2O-GeO_2 melts (R = Li, Na, K, Rb, Cs). The CO_2 solubilities can be interpreted by taking account of the free energy changes for the reaction: R_2O + CO_2=R_2CO_3, and the activity coefficients of R_2O and R_2CO_3 in R_2O-R_2CO3-GeO_2 pseudo ternary systems.