Selenium monochloride
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Selenium monochloride or diselenium dichloride is an inorganic compound with the formula Se2Cl2. Although a common name for the compound is selenium monochloride, reflecting its empirical formula, IUPAC does not recommend that name, instead preferring the more descriptive diselenium dichloride.
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
Diselenium dichloride | |
Other names
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Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.030.022 |
EC Number |
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PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
Se2Cl2 | |
Molar mass | 228.84 g·mol−1 |
Appearance | Reddish-brown oily liquid |
Density | 2.7741 g/cm3 |
Melting point | −85 °C (−121 °F; 188 K) |
Boiling point | 127 °C (261 °F; 400 K) at 0.997 atm |
insoluble | |
Solubility in other solvents | Soluble in chloroform, carbon disulfide, and acetonitrile |
−94.8·10−6 cm3/mol | |
Hazards | |
GHS labelling: | |
Danger | |
H301, H311, H314, H331, H373, H410 | |
P260, P261, P264, P270, P271, P273, P280, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P311, P312, P314, P321, P322, P330, P361, P363, P391, P403+P233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Close
Diselenium dichloride is a reddish-brown, oily liquid that hydrolyses slowly. It exists in chemical equilibrium with SeCl2, SeCl4, chlorine, and elemental selenium.[1] Diselenium dichloride is mainly used as a reagent for the synthesis of Se-containing compounds.