Chemical Properties of Cyanamide (CAS 420-04-2)

InChI

InChI=1S/CH2N2/c2-1-3/h2H2

InChI Key

XZMCDFZZKTWFGF-UHFFFAOYSA-N

Formula

CH2N2

SMILES

N#CN

Molecular Weight¹

42.04

CAS

420-04-2

Other Names

• H2NCN
• carbamonitrile
• Amidocyanogen
• Carbimide
• Cyanoamine
• Cyanogen nitride
• Cyanogenamide
• Hydrogen cyanamide
• N-Cyanoamine
• USAF EK-1995
• Alzogur
• Deurbraak
• Dormex
• NSC 24133
• TsAKS

• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• 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_fusH : Enthalpy of fusion at a given temperature (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).
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• T_triple : Triple Point Temperature (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
PAff	805.60	kJ/mol	NIST
BasG	774.90	kJ/mol	NIST
ΔcH°solid	-738.14	kJ/mol	NIST
ΔfG°	157.17	kJ/mol	Joback Calculated Property
ΔfH°gas	134.70	kJ/mol	Joback Calculated Property
ΔfH°solid	58.79	kJ/mol	NIST
ΔfusH°	5.05	kJ/mol	Joback Calculated Property
ΔsubH°	75.20	kJ/mol	NIST
ΔvapH°	38.94	kJ/mol	Joback Calculated Property
IE	[10.40; 10.65]	eV
IE	10.40	eV	NIST
IE	10.40	eV	NIST
IE	10.40	eV	NIST
IE	10.65	eV	NIST
log10WS	-0.04		Crippen Calculated Property
logPoct/wat	-0.574		Crippen Calculated Property
McVol	36.310	ml/mol	McGowan Calculated Property
Pc	6084.49	kPa	Joback Calculated Property
Tboil	396.89	K	Joback Calculated Property
Tc	610.74	K	Joback Calculated Property
Tfus	249.28	K	Joback Calculated Property
Ttriple	318.71 ± 0.02	K	NIST
Vc	0.146	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[56.94; 68.99]	J/mol×K	[396.89; 610.74]
Cp,gas	56.94	J/mol×K	396.89	Joback Calculated Property
Cp,gas	59.17	J/mol×K	432.53	Joback Calculated Property
Cp,gas	61.31	J/mol×K	468.17	Joback Calculated Property
Cp,gas	63.36	J/mol×K	503.81	Joback Calculated Property
Cp,gas	65.32	J/mol×K	539.46	Joback Calculated Property
Cp,gas	67.20	J/mol×K	575.10	Joback Calculated Property
Cp,gas	68.99	J/mol×K	610.74	Joback Calculated Property
Cp,solid	78.20	J/mol×K	300.00	NIST
ΔfusH	[7.27; 8.76]	kJ/mol	[317.20; 318.71]
ΔfusH	8.76	kJ/mol	317.20	NIST
ΔfusH	7.27	kJ/mol	318.71	NIST
ΔsubH	75.90	kJ/mol	258.00	NIST
ΔfusS	22.82	J/mol×K	318.71	NIST

Similar Compounds

Find more compounds similar to Cyanamide.

Sources

• Crippen Method
• Crippen Method
• Joback Method
• McGowan Method
• NIST Webbook

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