Chemical Properties of Dimethylamine (CAS 124-40-3)

InChI

InChI=1S/C2H7N/c1-3-2/h3H,1-2H3

InChI Key

ROSDSFDQCJNGOL-UHFFFAOYSA-N

Formula

C2H7N

SMILES

CNC

Molecular Weight¹

45.08

CAS

124-40-3

Other Names

• (CH3)2NH
• Methanamine, N-methyl-
• N,N-Dimethylamine
• N-Methylmethanamine
• NSC 8650
• Rcra waste number U092
• UN 1032
• methylaminomethane

• PAff : Proton affinity (kJ/mol).
• 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).
• 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).
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• I_np : Non-polar retention indices.
• I : 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).
• 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).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
PAff	929.50	kJ/mol	NIST
BasG	896.50	kJ/mol	NIST
ΔcH°liquid	[-1792.00; -1750.00]	kJ/mol
ΔcH°liquid	-1792.00	kJ/mol	NIST
ΔcH°liquid	-1750.00	kJ/mol	NIST
ΔfG°	55.35	kJ/mol	Joback Calculated Property
ΔfH°gas	[-23.80; -19.00]	kJ/mol
ΔfH°gas	-19.00 ± 2.00	kJ/mol	NIST
ΔfH°gas	-23.80	kJ/mol	NIST
ΔfH°liquid	[-49.80; -45.00]	kJ/mol
ΔfH°liquid	-45.00 ± 2.00	kJ/mol	NIST
ΔfH°liquid	-49.80	kJ/mol	NIST
ΔfusH°	6.04	kJ/mol	Joback Calculated Property
ΔvapH°	[25.40; 26.50]	kJ/mol
ΔvapH°	25.44	kJ/mol	NIST
ΔvapH°	25.40 ± 0.04	kJ/mol	NIST
ΔvapH°	26.00	kJ/mol	NIST
ΔvapH°	26.50 ± 0.10	kJ/mol	NIST
IE	[8.07; 8.97]	eV
IE	8.24 ± 0.08	eV	NIST
IE	8.20 ± 0.10	eV	NIST
IE	8.20	eV	NIST
IE	8.83	eV	NIST
IE	8.20 ± 0.10	eV	NIST
IE	8.30	eV	NIST
IE	8.25 ± 0.02	eV	NIST
IE	8.07	eV	NIST
IE	8.25	eV	NIST
IE	8.36	eV	NIST
IE	8.24 ± 0.02	eV	NIST
IE	8.95	eV	NIST
IE	8.97	eV	NIST
IE	8.85	eV	NIST
IE	8.93	eV	NIST
log10WS	0.15		Crippen Calculated Property
logPoct/wat	-0.164		Crippen Calculated Property
McVol	49.020	ml/mol	McGowan Calculated Property
Pc	[5304.36; 5340.00]	kPa
Pc	5340.00 ± 3.00	kPa	NIST
Pc	5304.36 ± 30.39	kPa	NIST
Pc	5312.47 ± 40.53	kPa	NIST
Inp	[405.00; 458.00]
Inp	405.00		NIST
Inp	434.00		NIST
Inp	458.00		NIST
Inp	426.00		NIST
Inp	425.00		NIST
Inp	434.00		NIST
I	[646.00; 650.00]
I	650.00		NIST
I	646.00		NIST
S°liquid	173.85	J/mol×K	NIST
Tboil	295.33	K	Joback Calculated Property
Tc	[437.22; 437.75]	K
Tc	437.22 ± 0.15	K	NIST
Tc	437.70 ± 0.30	K	NIST
Tc	437.75 ± 0.30	K	NIST
Tfus	[177.15; 180.25]	K
Tfus	180.15 ± 0.40	K	NIST
Tfus	178.90 ± 0.50	K	NIST
Tfus	180.15 ± 1.50	K	NIST
Tfus	180.25 ± 1.00	K	NIST
Tfus	177.15 ± 0.50	K	NIST
Ttriple	180.97 ± 0.02	K	NIST
Vc	0.182	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[68.55; 98.72]	J/mol×K	[295.33; 464.10]
Cp,gas	68.55	J/mol×K	295.33	Joback Calculated Property
Cp,gas	74.01	J/mol×K	323.46	Joback Calculated Property
Cp,gas	79.29	J/mol×K	351.59	Joback Calculated Property
Cp,gas	84.40	J/mol×K	379.71	Joback Calculated Property
Cp,gas	89.34	J/mol×K	407.84	Joback Calculated Property
Cp,gas	94.11	J/mol×K	435.97	Joback Calculated Property
Cp,gas	98.72	J/mol×K	464.10	Joback Calculated Property
Cp,liquid	136.77	J/mol×K	280.44	NIST
ΔfusH	[5.94; 5.94]	kJ/mol	[180.97; 181.00]
ΔfusH	5.94	kJ/mol	180.97	NIST
ΔfusH	5.94	kJ/mol	181.00	NIST
ΔfusH	5.94	kJ/mol	181.00	NIST
ΔvapH	[23.80; 28.40]	kJ/mol	[240.50; 398.00]
ΔvapH	28.40	kJ/mol	240.50	NIST
ΔvapH	26.40	kJ/mol	280.00	NIST
ΔvapH	26.48	kJ/mol	280.03	NIST
ΔvapH	27.00	kJ/mol	318.50	NIST
ΔvapH	23.80	kJ/mol	398.00	NIST
ΔfusS	32.83	J/mol×K	180.97	NIST
ΔvapS	94.58	J/mol×K	280.03	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.07; 5209.29]	kPa	[180.96; 437.65]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			8.60401e+01
Coefficient B			-5.86486e+03
Coefficient C			-1.08886e+01
Coefficient D			1.11571e-05
Temperature range, min.			180.96
Temperature range, max.			437.65
Pvap	0.07	kPa	180.96	Calculated Property
Pvap	1.40	kPa	209.48	Calculated Property
Pvap	11.53	kPa	238.00	Calculated Property
Pvap	55.13	kPa	266.52	Calculated Property
Pvap	182.85	kPa	295.04	Calculated Property
Pvap	470.09	kPa	323.57	Calculated Property
Pvap	1008.67	kPa	352.09	Calculated Property
Pvap	1900.06	kPa	380.61	Calculated Property
Pvap	3256.23	kPa	409.13	Calculated Property
Pvap	5209.29	kPa	437.65	Calculated Property

Similar Compounds

Find more compounds similar to Dimethylamine.

Mixtures

• Dimethylamine + Water
• Sulfuric Acid + Dimethylamine + Water

Sources

• KDB Vapor Pressure Data
• Crippen Method
• Crippen Method
• Surface Tensions and Densities of Sulfuric Acid + Dimethylamine + Water Solutions
• Joback Method
• KDB
• McGowan Method
• NIST Webbook

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