Chemical Properties of dinitrogen tetraoxide (CAS 10544-72-6)

InChI

InChI=1S/N2O4/c3-1(4)2(5)6

InChI Key

WFPZPJSADLPSON-UHFFFAOYSA-N

Formula

N2O4

SMILES

O=[N+]([O-])[N+](=O)[O-]

Molecular Weight¹

92.01

CAS

10544-72-6

Other Names

• Dinitrogen tetroxide

• ω : Acentric Factor.
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• 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).
• 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	0.4479		Relay (1.0) Calculated Property
ΔfG°	20.22	kJ/mol	Joback Calculated Property
ΔfH°gas	-14.43	kJ/mol	Relay (1.0) Calculated Property
ΔfusH°	18.48	kJ/mol	Joback Calculated Property
ΔvapH°	48.30	kJ/mol	Relay (1.0) Calculated Property
IE	[10.80; 11.60]	eV
IE	10.80 ± 0.20	eV	NIST
IE	11.40 ± 0.10	eV	NIST
IE	11.50 ± 0.10	eV	NIST
IE	11.40 ± 0.10	eV	NIST
IE	11.40 ± 0.10	eV	NIST
IE	11.00	eV	NIST
IE	11.60	eV	NIST
log10WS	-1.27		Relay (1.0) Calculated Property
logPoct/wat	-0.545		Crippen Calculated Property
McVol	45.700	ml/mol	McGowan Calculated Property
Pc	7014.41	kPa	Joback Calculated Property
Tboil	342.88	K	Relay (1.0) Calculated Property
Tc	607.05	K	Relay (1.0) Calculated Property
Tfus	294.28	K	Relay (1.0) Calculated Property
Vc	0.188	m3/kmol	Relay (1.0) Calculated Property

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[97.19; 119.21]	J/mol×K	[500.00; 1000.00]	NIST
Equation			Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K
Coefficient A			3.40527e+01
Coefficient B			1.91984e+02
Coefficient C			-1.51058e+02
Coefficient D			4.43935e+01
Coefficient E			-1.58949e-01
Reference			Chase, 1998
Temperature range, min.			500.00
Temperature range, max.			1000.00
Cp,gas	97.19	J/mol×K	500.00	Calculated Property
Cp,gas	101.19	J/mol×K	555.56	Calculated Property
Cp,gas	104.67	J/mol×K	611.11	Calculated Property
Cp,gas	107.70	J/mol×K	666.67	Calculated Property
Cp,gas	110.33	J/mol×K	722.22	Calculated Property
Cp,gas	112.62	J/mol×K	777.78	Calculated Property
Cp,gas	114.60	J/mol×K	833.33	Calculated Property
Cp,gas	116.33	J/mol×K	888.89	Calculated Property
Cp,gas	117.85	J/mol×K	944.44	Calculated Property
Cp,gas	119.21	J/mol×K	1000.00	Calculated Property
Cp,gas	[119.11; 132.61]	J/mol×K	[1000.00; 6000.00]	NIST
Equation			Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K
Coefficient A			1.28622e+02
Coefficient B			2.52434e+00
Coefficient C			-5.20883e-01
Coefficient D			3.66300e-02
Coefficient E			-1.15570e+01
Reference			Chase, 1998
Temperature range, min.			1000.00
Temperature range, max.			6000.00
Cp,gas	119.11	J/mol×K	1000.00	Calculated Property
Cp,gas	126.65	J/mol×K	1555.56	Calculated Property
Cp,gas	129.38	J/mol×K	2111.11	Calculated Property
Cp,gas	130.72	J/mol×K	2666.67	Calculated Property
Cp,gas	131.46	J/mol×K	3222.22	Calculated Property
Cp,gas	131.89	J/mol×K	3777.78	Calculated Property
Cp,gas	132.14	J/mol×K	4333.33	Calculated Property
Cp,gas	132.31	J/mol×K	4888.89	Calculated Property
Cp,gas	132.45	J/mol×K	5444.44	Calculated Property
Cp,gas	132.61	J/mol×K	6000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[142.48; 178.82]	J/mol×K	[298.00; 500.00]	NIST
Equation			Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,liquid in J/mol×K, T in K
Coefficient A			8.91631e+01
Coefficient B			1.78914e+02
Coefficient C			9.29459e-01
Coefficient D			0.00000e+00
Coefficient E			-7.10700e-03
Reference			Chase, 1998
Temperature range, min.			298.00
Temperature range, max.			500.00
Cp,liquid	142.48	J/mol×K	298.00	Calculated Property
Cp,liquid	146.52	J/mol×K	320.44	Calculated Property
Cp,liquid	150.56	J/mol×K	342.89	Calculated Property
Cp,liquid	154.60	J/mol×K	365.33	Calculated Property
Cp,liquid	158.63	J/mol×K	387.78	Calculated Property
Cp,liquid	162.67	J/mol×K	410.22	Calculated Property
Cp,liquid	166.71	J/mol×K	432.67	Calculated Property
Cp,liquid	170.75	J/mol×K	455.11	Calculated Property
Cp,liquid	174.79	J/mol×K	477.56	Calculated Property
Cp,liquid	178.82	J/mol×K	500.00	Calculated Property

Similar Compounds

Find more compounds similar to dinitrogen tetraoxide.

Mixtures

• dinitrogen tetraoxide + nitric acid + Water
• dinitrogen pentaoxide + dinitrogen tetraoxide + nitric acid

Sources

• Cheméo Relay (1.0)
• Crippen Method
• Crippen Method
• Densities and Excess Molar Volumes of the Ternary System N2O4 + H2O + HNO3 at 278.15 K, 283.15 K, 288.15 K, and 293.15 K
• Equilibrium Data for the N2O5 + HNO3+ N2O4 System at 258.2 K, 265.2 K, 273.2 K, and 281.2 K
• Joback Method
• McGowan Method
• NIST Webbook

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