| Antimony pentasulfide | |
|---|---|
| Identifiers | |
| CAS number | |
| PubChem | |
| ATC code | R05 |
| Properties | |
| Molecular formula | S5Sb2 |
| Molar mass | 403.85 g mol−1 |
| Solubility in water | insoluble |
| Solubility | soluble in HCl |
| Hazards | |
| EU classification |  F |
| R-phrases | R11 |
| Related compounds | |
| Related compounds | Antimony(III) sulfide |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Infobox references | |
Antimony pentasulfide is an inorganic compound of antimony and sulfur. It is a nonstoichiometric compound with a variable composition. Commercial samples are usually available only in technical grade, containing sulfur, which may be removed by washing with carbon disulfide in a Soxhlet extractor. It is the precursor to Schlippe's Salt, Na3SbS4. It may also be used as a red pigment.
Like many sulfides, this compound liberates hydrogen sulfide with strong acids like hydrochloric acid.[1] Analysis of commercial samples by Mossbauer spectroscopy shows the presence of only antimony(III).[2]
References
- ^ Strem MSDS
- ^ G. G. Long, J. G. Stevens, L. H. Bowen, S. L. Ruby (1969). "The oxidation number of antimony in antimony pentasulfide" (archived copy at NASA). Inorganic and Nuclear Chemistry Letters 5 (1): 21–25. doi:. http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19710065749_1971065749.pdf.
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