Chemical Properties of Ethanediamide (CAS 471-46-5)

InChI

InChI=1S/C2H4N2O2/c3-1(5)2(4)6/h(H2,3,5)(H2,4,6)

InChI Key

YIKSCQDJHCMVMK-UHFFFAOYSA-N

Formula

C2H4N2O2

SMILES

NC(=O)C(N)=O

Molecular Weight¹

88.07

CAS

471-46-5

Other Names

• Amid kyseliny stavelove
• Diaminoglyoxal
• Formimidic acid, 1-carbamoyl-
• NH2COCONH2
• NSC 2770
• Oxalamide
• Oxalic acid diamide
• Oxamic acid amide
• Oxamid
• Oxamimidic acid
• ethanedioic acid, diamide
• oxamide

• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,solid : Solid 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_fH°_solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_subH° : Enthalpy of sublimation at standard conditions (kJ/mol).
• Δ_subH : Enthalpy of sublimation at a given temperature (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).
• S°_{solid,1 bar} : Solid phase molar entropy at standard conditions (J/mol×K).
• 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
ΔcH°solid	[-902.60; -843.10]	kJ/mol
ΔcH°solid	-902.60	kJ/mol	NIST
ΔcH°solid	-854.30 ± 0.40	kJ/mol	NIST
ΔcH°solid	-843.10 ± 4.20	kJ/mol	NIST
ΔcH°solid	-853.43	kJ/mol	NIST
ΔfG°	-158.98	kJ/mol	Joback Calculated Property
ΔfH°gas	-387.10 ± 1.30	kJ/mol	NIST
ΔfH°solid	[-515.60; -456.90]	kJ/mol
ΔfH°solid	-456.90	kJ/mol	NIST
ΔfH°solid	-504.40 ± 0.50	kJ/mol	NIST
ΔfH°solid	-515.60 ± 4.20	kJ/mol	NIST
ΔfusH°	50.00	kJ/mol	Odd eve...
ΔsubH°	[112.97; 117.30]	kJ/mol
ΔsubH°	117.30 ± 1.20	kJ/mol	NIST
ΔsubH°	112.97	kJ/mol	NIST
ΔvapH°	54.82	kJ/mol	Joback Calculated Property
IE	[9.41; 9.80]	eV
IE	9.41	eV	NIST
IE	9.80	eV	NIST
IE	9.80	eV	NIST
log10WS	0.92		Crippen Calculated Property
logPoct/wat	-2.043		Crippen Calculated Property
McVol	62.140	ml/mol	McGowan Calculated Property
Pc	7305.14	kPa	Joback Calculated Property
S°solid,1 bar	118.11	J/mol×K	NIST
Tboil	497.96	K	Joback Calculated Property
Tc	723.03	K	Joback Calculated Property
Tfus	378.68	K	Joback Calculated Property
Vc	0.217	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[127.75; 153.90]	J/mol×K	[497.96; 723.03]
Cp,gas	127.75	J/mol×K	497.96	Joback Calculated Property
Cp,gas	132.85	J/mol×K	535.47	Joback Calculated Property
Cp,gas	137.65	J/mol×K	572.98	Joback Calculated Property
Cp,gas	142.14	J/mol×K	610.49	Joback Calculated Property
Cp,gas	146.35	J/mol×K	648.01	Joback Calculated Property
Cp,gas	150.26	J/mol×K	685.52	Joback Calculated Property
Cp,gas	153.90	J/mol×K	723.03	Joback Calculated Property
Cp,solid	113.89	J/mol×K	298.15	NIST
ΔsubH	[113.00; 115.80]	kJ/mol	[361.00; 384.00]
ΔsubH	113.00	kJ/mol	361.00	NIST
ΔsubH	115.80	kJ/mol	384.00	NIST

Similar Compounds

Find more compounds similar to Ethanediamide.

Sources

• Crippen Method
• Crippen Method
• Odd even effect in melting properties of 12 alkane-a,x-diamides
• Joback Method
• McGowan Method
• NIST Webbook

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