THERMAL CHARACTERIZATION OF THE SYSTEM SULFUR - BORON SULFIDE

The results of a DSC study of the S/B2S3 system between room temperatu re and 330-degrees-C are reported. Plots of the DSC curves as a functi on of mixture composition indicate three ranges, where S/B2S3 interact ion presents different modes and effects. Analysis of the peak enthalp ies shows that up to 40% B2S3 content, the interaction affects sulfur melting and polymerization in variable ways and extents. For mixtures with higher B2S3 content, formation of a new phase can be hypothesized . Conclusions on the interaction phenomenology, drawn from DSC, are su pported by the preliminary results of FTIR/PAS measurements.