Compression behavior of liquid FeS

Abstract

We determined the densities of FeS sulfide melts at 3.5 GPa and 1373-1773 K by means of X-ray absorption technique. Densities of liquid FeS is 8-10% lower than those determined by previous studies (Nishida et al., 2011; Chen et al., 2014). Our new data can be connected to 1 atm density data without the assumption that the structural change of FeS associated with rapid increase of its density occurs up to 0.5 GPa. We will discuss the structure of liquid FeS at high pressures.