EXPERIMENTAL INVESTIGATION AND THERMODYNA MIC CORRELATION IN THE SB(III)-S(II)-O-H SYSTEM

Analysis of thermodynamic properties of Sb(III)-S(II)-O-H system compo nents in 25-350-degrees-C temperature range has been undertaken by mea ns of physical-chemical computer simulation. The HKF equation of state for aqua species was used. Some isolated control experiments of senar montite and stibnite solubilities at 350-degrees-C with and without H2 S were carried out. Self-consistent termodynamic data of the species i n the Sb(III)-S(II)-O-H system obtained in the work differ significant ly from the similar ones in available thermodynamic reviews. One may u se the results to describe the behavior of the system in the wide rang e of temperatures (up to 500-degrees-C) and pressures (up to 2 kbar).