Names | |
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IUPAC name
silicon(IV) sulfide
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Other names
silicon disulfide
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.033.935 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
SiS2 | |
Molar mass | 92.218 g/mol |
Appearance | White (samples are sometimes grey or brown) needles. Rotten egg smell in moist air. |
Density | 1.853 g/cm3 |
Melting point | 1,090 °C (1,990 °F; 1,360 K) sublimes |
Decomposes | |
Structure | |
Orthorhombic, oI12 | |
Ibam, No.72[1] | |
Tetrahedral | |
Hazards | |
NFPA 704 (fire diamond) | |
Related compounds | |
Other anions
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silicon dioxide |
Other cations
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carbon disulfide germanium disulfide tin(IV) sulfide lead(IV) sulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Silicon disulfide is the inorganic compound with the formula SiS2. Like silicon dioxide, this material is polymeric, but it adopts a 1-dimensional structure quite different from the usual forms of SiO2.