Dichlorine monoxide
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| Dichlorine monoxide | |
|---|---|
  |
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| Molecular formula | Cl2O |
| Molar mass | 86.9054 g mol−1 |
| CAS number | [7791-21-1] |
| Density | ? |
| Solubility (water) | hydrolyses |
| Melting point | −120.6 °C |
| Boiling point | 22 °C |
| Dipole moment | 0.78 ± 0.08 D |
| Thermodynamic data | |
| Standard enthalpy of formation ΔfH°solid |
+80.3 kJ mol−1 |
| Standard molar entropy S°solid |
265.9 J K−1 mol−1 |
| Safety data | |
| EU classification | ? |
| R-phrases | ? |
| S-phrases | ? |
| Related compounds | |
| Related oxides | H2O F2O |
| Other chlorine oxides | ClO2 Cl2O7 |
| Disclaimer and references | |
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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