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1315-04-4[S]=[Sb](=[S])[S][Sb](=[S])=[S]PPKVREKQVQREQD-UHFFFAOYSA-N1315-04-4DTXSID8046583CHEBI:134733Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
UsesAs pigment; vulcanizing and coloring rubber; manufacture of matches and fireworks.
PreparationThe compound is made commercially by converting antimony trisulfide to tetrathioantimonate by boiling with sulfur in caustic soda solution:4 Sb2S3 + 8 S +18 NaOH → 5 Na3SbS4 + 3 NaSbO3 + 9 H2OThe sparingly soluble sodium antimonate is filtered out of the solution. The yellow-orange antimony pentasulfide precipitates out on treatment with hydrochloric acid.2 Na3SbS4 + 6 HCl → Sb2S5 + 6 NaCl + 3 H2SIt may also be prepared by the reaction of antimony pentachloride in HCl with hydrogen sulfide and removing any free sulfur by extraction with carbon disulfide:2 SbCl5 + 5 H2S → Sb2S5 + 10 HCl.
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DefinitionChEBI: Antimony pentasulfide is a sulfide and a p-block molecular entity.