Dichlorine monoxide Other names: Chlorine monooxide; Chlorine monoxide; Chlorine monoxide (Cl2O); Chlorine oxide; Chlorine oxide (Cl2O); Cl2O; Dichlorine oxide; Dichloromonoxide; Dichloroxide; Hypochlorous anhydride. InChI: InChI=1S/Cl2O/c1-3-2 InChI Key: RCJVRSBWZCNNQT-UHFFFAOYSA-N Formula: Cl2O SMILES: ClOCl Molecular Weight: 86.90 CAS: 7791-21-1 Physical Properties Property Value Unit Source EA 1.30 ± 0.43 eV NIST Webbook ∆ G° -179.74 Joback Method f kJ/mol ∆ H° -207.03 Joback Method f gas kJ/mol ∆ H° 5.34 Joback Method fus kJ/mol ∆ H° 26.77 Joback Method vap kJ/mol IE 10.91 ± 0.02 eV NIST Webbook IE 10.91 ± 0.02 eV NIST Webbook IE 10.94 eV NIST Webbook IE 11.20 ± 0.10 eV NIST Webbook IE 11.02 eV NIST Webbook logP 1.31 Crippen Method oct/wat P 5836.07 Joback Method c kPa T 296.68 Joback Method boil K T 479.25 Joback Method c K T 171.83 Joback Method fus K V 0.15 3 Joback Method c m /kg-mol Temperature Dependent Properties Property Value Unit Temperature (K) Source C 47.60 J/mol×K 296.68 Joback Method p,gas η 0.00 Pa×s 296.68 Joback Method Sources Joback Method: https://en.wikipedia.org/wiki/Joback_method NIST Webbook: http://webbook.nist.gov/cgi/inchi/InChI=1S/Cl2O/c1-3-2 Crippen Method: http://pubs.acs.org/doi/abs/10.1021/ci990307l Legend C : Ideal gas heat capacity (J/mol×K). p,gas η: Dynamic viscosity (Pa×s). EA: Electron affinity (eV). ∆ G°: Standard Gibbs free energy of formation (kJ/mol). f ∆ H° : Enthalpy of formation at standard conditions (kJ/mol). f gas ∆ H°: Enthalpy of fusion at standard conditions (kJ/mol). fus ∆ H°: Enthalpy of vaporization at standard conditions (kJ/mol). vap IE: Ionization energy (eV). logP : Octanol/Water partition coefficient . oct/wat P : Critical Pressure (kPa). c T : Normal Boiling Point Temperature (K). boil T : Critical Temperature (K). c T : Normal melting (fusion) point (K). fus V : Critical Volume (m3/kg-mol). c Latest version available from: https://www.chemeo.com/cid/51-648-6/Dichlorine%20monoxide Generated by Cheméo on Sat, 02 Oct 2021 04:04:43 +0000. Cheméo (https://www.chemeo.com) is the biggest free database of chemical and physical data for the process industry..