Abstract
The equilibrium relations between the dissolved sulphur in molten iron and gaseous sulphur, and sulphur dioxide were established by means of some thermodynamic calculations.
From these relations, the pressures of sulphur gases and sulphur dioxide in equilibrium with molten iron as well as the heats of vaporization of sulphur from the bath were determined. It was also proved that sulphur gas would behave in atomic state in the case of a bath containing a small amount of the sulphur at a high temperature such as in steelmaking practice.
