Chemical Properties of Dichlorine monoxide (CAS 7791-21-1)

InChI

InChI=1S/Cl2O/c1-3-2

InChI Key

RCJVRSBWZCNNQT-UHFFFAOYSA-N

Formula

Cl2O

SMILES

ClOCl

Molecular Weight¹

86.91

CAS

7791-21-1

Other Names

• Chlorine monooxide
• Chlorine monoxide
• Chlorine monoxide (Cl2O)
• Chlorine oxide
• Chlorine oxide (Cl2O)
• Cl2O
• Dichlorine oxide
• Dichloromonoxide
• Dichloroxide
• Hypochlorous anhydride

• ω : Acentric Factor.
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• η : Dynamic viscosity (Pa×s).
• EA : Electron affinity (eV).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• IE : Ionization energy (eV).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	0.2182		Relay (1.0) Calculated Property
EA	1.30 ± 0.43	eV	NIST
ΔfG°	-179.74	kJ/mol	Joback Calculated Property
ΔfH°gas	131.93	kJ/mol	Relay (1.0) Calculated Property
ΔfusH°	5.34	kJ/mol	Joback Calculated Property
ΔvapH°	21.22	kJ/mol	Relay (1.0) Calculated Property
IE	[10.91; 11.20]	eV
IE	10.91 ± 0.02	eV	NIST
IE	10.91 ± 0.02	eV	NIST
IE	10.94	eV	NIST
IE	11.20 ± 0.10	eV	NIST
IE	11.02	eV	NIST
log10WS	-1.15		Relay (1.0) Calculated Property
logPoct/wat	1.311		Crippen Calculated Property
McVol	41.210	ml/mol	McGowan Calculated Property
Pc	5836.07	kPa	Joback Calculated Property
Tboil	256.76	K	Relay (1.0) Calculated Property
Tc	432.93	K	Relay (1.0) Calculated Property
Tfus	247.12	K	Relay (1.0) Calculated Property
Vc	0.133	m3/kmol	Relay (1.0) Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[47.57; 48.53]	J/mol×K	[296.68; 479.25]
Cp,gas	47.60	J/mol×K	296.68	Joback Calculated Property
Cp,gas	47.57	J/mol×K	327.11	Joback Calculated Property
Cp,gas	47.62	J/mol×K	357.54	Joback Calculated Property
Cp,gas	47.75	J/mol×K	387.97	Joback Calculated Property
Cp,gas	47.95	J/mol×K	418.39	Joback Calculated Property
Cp,gas	48.21	J/mol×K	448.82	Joback Calculated Property
Cp,gas	48.53	J/mol×K	479.25	Joback Calculated Property
η	[0.0002921; 0.0019500]	Pa×s	[171.83; 296.68]
η	0.0019500	Pa×s	171.83	Joback Calculated Property
η	0.0011979	Pa×s	192.64	Joback Calculated Property
η	0.0008092	Pa×s	213.45	Joback Calculated Property
η	0.0005861	Pa×s	234.25	Joback Calculated Property
η	0.0004474	Pa×s	255.06	Joback Calculated Property
η	0.0003557	Pa×s	275.87	Joback Calculated Property
η	0.0002921	Pa×s	296.68	Joback Calculated Property

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.13; 101.31]	kPa	[174.65; 275.35]	The Yaws Handbook of Vapor Pressure
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.57156e+01
Coefficient B			-2.98553e+03
Coefficient C			-6.32000e+00
Temperature range, min.			174.65
Temperature range, max.			275.35
Pvap	0.13	kPa	174.65	Calculated Property
Pvap	0.40	kPa	185.84	Calculated Property
Pvap	1.06	kPa	197.03	Calculated Property
Pvap	2.53	kPa	208.22	Calculated Property
Pvap	5.50	kPa	219.41	Calculated Property
Pvap	11.06	kPa	230.59	Calculated Property
Pvap	20.83	kPa	241.78	Calculated Property
Pvap	37.02	kPa	252.97	Calculated Property
Pvap	62.59	kPa	264.16	Calculated Property
Pvap	101.31	kPa	275.35	Calculated Property

Similar Compounds

Find more compounds similar to Dichlorine monoxide.

Sources

• Cheméo Relay (1.0)
• Crippen Method
• Crippen Method
• Joback Method
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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