Dichlorine monoxide
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| Dichlorine monoxide | |
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| Identifiers | |
| CAS number | [7791-21-1] |
| Properties | |
| Molecular formula | Cl2O |
| Molar mass | 86.9054 g mol−1 |
| Melting point |
−120.6 °C |
| Boiling point |
22 °C |
| Solubility in other solvents | hydrolyses |
| Structure | |
| Dipole moment | 0.78 ± 0.08 D |
| Thermochemistry | |
| Std enthalpy of formation ΔfH |
+80.3 kJ mol−1 |
| Standard molar entropy S |
265.9 J K−1 mol−1 |
| Related compounds | |
| Related oxides | H2O F2O |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Dichlorine monoxide, Cl2O, is a chlorine oxide.
Dichlorine monoxide is the anhydride of hypochlorous acid; it is related to hypochlorites generally.
It is also the unstable decomposition product of calcium hypochlorite, and in high concentrations presents the risk of ignition by friction or static spark.
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