Chemical Properties of Methylamine (CAS 74-89-5)

InChI

InChI=1S/CH5N/c1-2/h2H2,1H3

InChI Key

BAVYZALUXZFZLV-UHFFFAOYSA-N

Formula

CH5N

SMILES

CN

Molecular Weight¹

31.06

CAS

74-89-5

Other Names

• AMINOMETHANE
• CARBINAMINE
• CH3NH2
• MMA
• Mercurialin
• Methanamine
• Methylaminen
• Metilamine
• Metyloamina
• Monomethylamine
• UN 1061

• ω : Acentric Factor.
• PAff : Proton affinity (kJ/mol).
• T_ig : Autoignition Temperature (K).
• BasG : Gas basicity (kJ/mol).
• Δ_cH°_liquid : Standard liquid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• μ : Dipole Moment (debye).
• LFL : Lower Flammability Limit (% in Air).
• UFL : Upper Flammability Limit (% in Air).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_liquid : Liquid 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_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (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).
• NFPA Fire : NFPA Fire Rating.
• NFPA Health : NFPA Health Rating.
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• ρ_l : Liquid Density (kg/m³).
• I_np : Non-polar retention indices.
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• S°_liquid : Liquid phase molar entropy at standard conditions (J/mol×K).
• γ : Surface Tension (N/m).
• Δ_vapS : Entropy of vaporization 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).
• Z_c : Critical Compressibility.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	0.2920		KDB
PAff	899.00	kJ/mol	NIST
Tig	703.15	K	KDB
BasG	864.50	kJ/mol	NIST
ΔcH°liquid	[-1094.00; -1060.80]	kJ/mol
ΔcH°liquid	-1060.80 ± 0.40	kJ/mol	NIST
ΔcH°liquid	-1060.80 ± 0.40	kJ/mol	NIST
ΔcH°liquid	-1094.00	kJ/mol	NIST
ΔcH°liquid	-1075.00	kJ/mol	NIST
μ	1.30	debye	KDB
LFL	4.30	% in Air	KDB
UFL	21.00	% in Air	KDB
ΔfG°	32.28	kJ/mol	KDB
ΔfH°gas	[-23.50; -12.20]	kJ/mol
ΔfH°gas	-23.03	kJ/mol	KDB
ΔfH°gas	-23.50	kJ/mol	NIST
ΔfH°gas	-12.20	kJ/mol	NIST
ΔfH°liquid	[-47.30; -36.00]	kJ/mol
ΔfH°liquid	-47.30 ± 0.46	kJ/mol	NIST
ΔfH°liquid	-47.30 ± 0.46	kJ/mol	NIST
ΔfH°liquid	-36.00	kJ/mol	NIST
ΔfusH°	3.54	kJ/mol	Joback Calculated Property
ΔvapH°	23.85	kJ/mol	NIST
IE	[8.80; 9.65]	eV
IE	8.90 ± 0.10	eV	NIST
IE	8.90	eV	NIST
IE	9.45	eV	NIST
IE	8.90 ± 0.10	eV	NIST
IE	9.08	eV	NIST
IE	8.80 ± 0.02	eV	NIST
IE	9.65	eV	NIST
IE	9.00	eV	NIST
IE	9.58	eV	NIST
IE	9.58	eV	NIST
IE	9.64	eV	NIST
IE	9.64	eV	NIST
IE	9.65	eV	NIST
log10WS	0.32		Crippen Calculated Property
logPoct/wat	-0.425		Crippen Calculated Property
McVol	34.930	ml/mol	McGowan Calculated Property
NFPA Fire	4		KDB
NFPA Health	3		KDB
Pc	[7457.52; 7650.00]	kPa
Pc	7614.00	kPa	KDB
Pc	7650.00 ± 100.00	kPa	NIST
Pc	7614.00 ± 4.00	kPa	NIST
Pc	7457.52 ± 60.79	kPa	NIST
Inp	[305.00; 380.00]
Inp	305.00		NIST
Inp	380.00		NIST
Inp	328.00		NIST
S°liquid	150.20	J/mol×K	NIST
Tboil	[266.65; 267.05]	K
Tboil	266.83	K	KDB
Tboil	266.80	K	NIST
Tboil	266.65 ± 0.50	K	NIST
Tboil	266.65 ± 1.00	K	NIST
Tboil	266.65 ± 1.00	K	NIST
Tboil	266.95 ± 0.20	K	NIST
Tboil	267.05 ± 0.20	K	NIST
Tboil	266.70 ± 0.30	K	NIST
Tboil	266.65 ± 1.00	K	NIST
Tc	[430.05; 430.85]	K
Tc	430.70	K	KDB
Tc	430.85 ± 0.50	K	NIST
Tc	430.70 ± 0.20	K	NIST
Tc	430.05 ± 0.70	K	NIST
Tfus	[179.70; 180.05]	K
Tfus	179.71	K	KDB
Tfus	180.05 ± 0.40	K	NIST
Tfus	180.05 ± 0.30	K	NIST
Tfus	179.70 ± 0.07	K	NIST
Ttriple	179.70 ± 0.07	K	NIST
Vc	[0.139; 0.154]	m3/kmol
Vc	0.154	m3/kmol	KDB
Vc	0.139 ± 0.001	m3/kmol	NIST
Zc	0.3284960		KDB

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[49.72; 69.45]	J/mol×K	[294.81; 475.82]
T(K) Ideal gas heat capacity (J/mol×K) 50 55 60 65 70 300 350 400 450
Cp,gas	49.72	J/mol×K	294.81	Joback Calculated Property
Cp,gas	53.29	J/mol×K	324.98	Joback Calculated Property
Cp,gas	56.74	J/mol×K	355.15	Joback Calculated Property
Cp,gas	60.08	J/mol×K	385.32	Joback Calculated Property
Cp,gas	63.31	J/mol×K	415.48	Joback Calculated Property
Cp,gas	66.43	J/mol×K	445.65	Joback Calculated Property
Cp,gas	69.45	J/mol×K	475.82	Joback Calculated Property
Cp,liquid	101.80	J/mol×K	259.28	NIST
ΔfusH	[6.13; 6.13]	kJ/mol	[179.70; 179.70]
ΔfusH	6.13	kJ/mol	179.70	NIST
ΔfusH	6.13	kJ/mol	179.70	NIST
ΔvapH	[23.50; 27.40]	kJ/mol	[228.50; 401.50]
T(K) Enthalpy of vaporization at a given temperature (kJ/mol) 24 25 26 27 250 300 350 400
ΔvapH	27.40	kJ/mol	228.50	NIST
ΔvapH	27.20	kJ/mol	248.00	NIST
ΔvapH	25.98	kJ/mol	266.80	KDB
ΔvapH	25.60	kJ/mol	266.80	NIST
ΔvapH	25.81	kJ/mol	266.84	NIST
ΔvapH	25.81 ± 0.13	kJ/mol	266.84	NIST
ΔvapH	26.10	kJ/mol	296.00	NIST
ΔvapH	24.80	kJ/mol	350.00	NIST
ΔvapH	23.50	kJ/mol	401.50	NIST
ρl	703.00	kg/m3	260.00	KDB
ΔfusS	34.13	J/mol×K	179.70	NIST
γ	0.02	N/m	293.20	KDB
ΔvapS	96.73	J/mol×K	266.84	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.18; 3767.28]	kPa	[179.69; 390.05]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.49438e+01
Coefficient B			-2.36156e+03
Coefficient C			-3.80880e+01
Temperature range, min.			179.69
Temperature range, max.			390.05
T(K) Vapor pressure (kPa) 0 500 1000 1500 2000 2500 3000 3500 4000 200 250 300 350
Pvap	0.18	kPa	179.69	Calculated Property
Pvap	1.88	kPa	203.06	Calculated Property
Pvap	11.08	kPa	226.44	Calculated Property
Pvap	44.25	kPa	249.81	Calculated Property
Pvap	134.11	kPa	273.18	Calculated Property
Pvap	332.64	kPa	296.56	Calculated Property
Pvap	709.66	kPa	319.93	Calculated Property
Pvap	1348.10	kPa	343.30	Calculated Property
Pvap	2337.48	kPa	366.68	Calculated Property
Pvap	3767.28	kPa	390.05	Calculated Property
Pvap	[0.18; 7441.23]	kPa	[179.69; 430.05]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			7.39982e+01
Coefficient B			-5.25016e+03
Coefficient C			-9.02366e+00
Coefficient D			9.96726e-06
Temperature range, min.			179.69
Temperature range, max.			430.05
T(K) Vapor pressure (kPa) 0 1000 2000 3000 4000 5000 6000 7000 8000 200 300 400
Pvap	0.18	kPa	179.69	Calculated Property
Pvap	2.67	kPa	207.51	Calculated Property
Pvap	19.34	kPa	235.33	Calculated Property
Pvap	85.68	kPa	263.14	Calculated Property
Pvap	271.76	kPa	290.96	Calculated Property
Pvap	681.75	kPa	318.78	Calculated Property
Pvap	1445.25	kPa	346.60	Calculated Property
Pvap	2710.10	kPa	374.41	Calculated Property
Pvap	4643.16	kPa	402.23	Calculated Property
Pvap	7441.23	kPa	430.05	Calculated Property

Similar Compounds

Find more compounds similar to Methylamine.

Sources

• KDB Vapor Pressure Data
• Crippen Method
• Crippen Method
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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