Selenium dichloride
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| Cl2Se | |
| Molar mass | 149.87 g·mol−1 |
| Related compounds | |
Other anions
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Selenium dibromide, SeBr2 |
Other cations
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Sulfur dichloride, SCl2 Tellurium dichloride, TeCl2 Polonium dichloride, PoCl2 |
Related compounds
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Selenium tetrachloride, SeCl4 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Selenium dichloride is the inorganic compound with the formula SeCl2. It forms red-brown solutions in ethers. Selenium dichloride has been prepared by treating gray selenium with sulfuryl chloride. Adducts of selenium dichloride with thioethers and thioureas are well characterized. Related complexes of tellurium dichloride are known.
Solutions of selenium dichloride are unstable at room temperature, forming selenium monochloride after several minutes at room temperature:[2]
- 3 SeCl2 → Se2Cl2 + SeCl4