==Production== Antimony pentasulfide can be produced by the reaction of antimony with sulfur at a temperature between 250-400 °C in an inert atmosphere. ==Uses== It may be used as a red pigment and is one possible precursor to Schlippe`s Salt, Na3SbS4, which can be prepared according to the equation: ==Physical chemistry== Like many sulfides, th.... Found on http://en.wikipedia.org/wiki/Antimony_pentasulfide