  The kinetics of homogenization of binary As$_x$Se$_{100-x}$ melts in the As
concentration range $0\%$ $<$ $x$ $<$ $50\%$ are followed in FT-Raman profiling
experiments, and show that 2 gram sized melts in the middle concentration range
$20\%$ $<$ $x$ $<$ $30\%$ take nearly two weeks to homogenize when starting
materials are reacted at 700$^o$C. In glasses of proven homogeneity, we find
molar volumes to vary non-monotonically with composition, and the fragility
index ${\cal M}$ displays a broad global minimum in the $20\%$ $<$ $x$ $<$
$30\%$ range of $x$ wherein ${\cal M}<$ 20. We show that properly homogenized
samples have a lower measured fragility when compared to larger under-reacted
melts. The enthalpy of relaxation at T$_g$, $\Delta$H$_{nr}$($x$) shows a
minimum in the $27\%$ $<$ $x$ $<$ $37\%$ range. The super-strong nature of melt
compositions in the $20\%$ $<$ $x$ $<$ $30\%$ range suppresses melt diffusion
at high temperatures leading to the slow kinetics of melt homogenization.
