Chemical Properties of Pyridine, 2-methyl- (CAS 109-06-8)

InChI

InChI=1S/C6H7N/c1-6-4-2-3-5-7-6/h2-5H,1H3

InChI Key

BSKHPKMHTQYZBB-UHFFFAOYSA-N

Formula

C6H7N

SMILES

Cc1ccccn1

Molecular Weight¹

93.13

CAS

109-06-8

Other Names

• .alpha.-picoline
• 2-Methylpyridine
• 2-PICOLINE
• ALPA-PICOLINE
• NSC 3409
• Picoline, «alpha»
• Picoline, «alpha»
• Rcra waste number U191
• o-Methylpyridine
• o-Picoline
• «alpha»-Methylpyridine
• «alpha»-Picoline
• «alpha»-Methylpyridine
• «alpha»-Picoline

• ω : Acentric Factor.
• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• Δ_cH°_liquid : Standard liquid enthalpy of combustion (kJ/mol).
• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• μ : Dipole Moment (debye).
• 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 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).
• n₀ : Refractive Index.
• ρ_c : Critical density (kg/m³).
• ρ_l : Liquid Density (kg/m³).
• 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).
• c_sound,fluid : Speed of sound in fluid (m/s).
• 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	0.2990		KDB
PAff	949.10	kJ/mol	NIST
BasG	917.30	kJ/mol	NIST
ΔcH°liquid	[-3420.50; -3292.40]	kJ/mol
ΔcH°liquid	-3292.40	kJ/mol	NIST
ΔcH°liquid	-3418.00 ± 0.67	kJ/mol	NIST
ΔcH°liquid	-3420.50 ± 1.30	kJ/mol	NIST
ΔcH°liquid	-3415.00	kJ/mol	NIST
μ	1.90	debye	KDB
ΔfG°	177.20	kJ/mol	KDB
ΔfH°gas	[-26.50; 102.00]	kJ/mol
ΔfH°gas	99.02	kJ/mol	KDB
ΔfH°gas	Outlier -26.50	kJ/mol	NIST
ΔfH°gas	98.95 ± 0.88	kJ/mol	NIST
ΔfH°gas	101.90 ± 1.30	kJ/mol	NIST
ΔfH°gas	102.00 ± 1.30	kJ/mol	NIST
ΔfH°gas	87.70	kJ/mol	NIST
ΔfH°liquid	[-68.99; 59.00]	kJ/mol
ΔfH°liquid	-68.99	kJ/mol	NIST
ΔfH°liquid	56.48 ± 0.75	kJ/mol	NIST
ΔfH°liquid	59.00 ± 1.30	kJ/mol	NIST
ΔfH°liquid	45.27	kJ/mol	NIST
ΔvapH°	[42.47; 43.60]	kJ/mol
ΔvapH°	42.51	kJ/mol	NIST
ΔvapH°	Outlier 43.60	kJ/mol	NIST
ΔvapH°	42.51	kJ/mol	NIST
ΔvapH°	42.50 ± 0.10	kJ/mol	NIST
ΔvapH°	42.47	kJ/mol	NIST
ΔvapH°	42.50	kJ/mol	NIST
ΔvapH°	42.92	kJ/mol	NIST
ΔvapH°	43.00	kJ/mol	NIST
IE	[9.02; 9.40]	eV
IE	9.37 ± 0.05	eV	NIST
IE	9.40 ± 0.10	eV	NIST
IE	9.02 ± 0.03	eV	NIST
IE	9.26	eV	NIST
IE	9.18	eV	NIST
IE	9.20	eV	NIST
IE	9.20 ± 0.05	eV	NIST
log10WS	0.72		Relay (1.0) Calculated Property
logPoct/wat	1.390		Crippen Calculated Property
McVol	81.620	ml/mol	McGowan Calculated Property
NFPA Fire	2		KDB
NFPA Health	2		KDB
Pc	[4600.00; 4600.00]	kPa
Pc	4600.00	kPa	KDB
Pc	4600.00 ± 60.79	kPa	NIST
ρc	278.45 ± 29.80	kg/m3	NIST
Inp	[121.17; 837.00]
Inp	802.30		NIST
Inp	814.00		NIST
Inp	804.00		NIST
Inp	802.20		NIST
Inp	799.00		NIST
Inp	800.00		NIST
Inp	803.00		NIST
Inp	804.00		NIST
Inp	800.00		NIST
Inp	814.00		NIST
Inp	800.00		NIST
Inp	799.00		NIST
Inp	799.00		NIST
Inp	801.00		NIST
Inp	802.00		NIST
Inp	816.00		NIST
Inp	818.00		NIST
Inp	818.00		NIST
Inp	819.00		NIST
Inp	819.00		NIST
Inp	819.00		NIST
Inp	819.00		NIST
Inp	816.00		NIST
Inp	816.00		NIST
Inp	816.00		NIST
Inp	817.00		NIST
Inp	818.00		NIST
Inp	818.00		NIST
Inp	818.00		NIST
Inp	816.00		NIST
Inp	816.00		NIST
Inp	818.00		NIST
Inp	818.00		NIST
Inp	819.00		NIST
Inp	819.00		NIST
Inp	820.00		NIST
Inp	837.00		NIST
Inp	786.60		NIST
Inp	811.00		NIST
Inp	808.00		NIST
Inp	815.00		NIST
Inp	825.00		NIST
Inp	799.00		NIST
Inp	792.00		NIST
Inp	792.00		NIST
Inp	821.00		NIST
Inp	818.00		NIST
Inp	824.00		NIST
Inp	824.00		NIST
Inp	792.00		NIST
Inp	811.00		NIST
Inp	790.00		NIST
Inp	787.00		NIST
Inp	805.00		NIST
Inp	802.00		NIST
Inp	803.00		NIST
Inp	787.00		NIST
Inp	814.00		NIST
Inp	807.00		NIST
Inp	821.00		NIST
Inp	826.00		NIST
Inp	820.00		NIST
Inp	815.00		NIST
Inp	816.00		NIST
Inp	799.00		NIST
Inp	816.00		NIST
Inp	797.00		NIST
Inp	799.00		NIST
Inp	799.00		NIST
Inp	770.00		NIST
Inp	772.00		NIST
Inp	799.00		NIST
Inp	800.00		NIST
Inp	825.00		NIST
Inp	795.00		NIST
Inp	798.00		NIST
Inp	Outlier 121.17		NIST
Inp	Outlier 130.12		NIST
Inp	Outlier 125.11		NIST
Inp	821.00		NIST
Inp	826.00		NIST
Inp	816.00		NIST
Inp	772.00		NIST
Inp	800.00		NIST
I	[1180.00; 1266.00]
I	1225.00		NIST
I	1212.00		NIST
I	Outlier 1265.00		NIST
I	1222.00		NIST
I	1224.00		NIST
I	1218.00		NIST
I	Outlier 1262.00		NIST
I	Outlier 1266.00		NIST
I	1234.00		NIST
I	1211.00		NIST
I	1213.00		NIST
I	1213.00		NIST
I	1213.00		NIST
I	1214.00		NIST
I	1206.00		NIST
I	1214.00		NIST
I	1211.00		NIST
I	1216.00		NIST
I	1227.00		NIST
I	1200.00		NIST
I	1226.00		NIST
I	1223.00		NIST
I	1226.00		NIST
I	1222.00		NIST
I	1242.00		NIST
I	1242.00		NIST
I	1242.00		NIST
I	1215.68		NIST
I	1190.00		NIST
I	1205.00		NIST
I	1240.00		NIST
I	1243.00		NIST
I	1240.00		NIST
I	1234.00		NIST
I	1234.00		NIST
I	1241.00		NIST
I	1239.00		NIST
I	1239.00		NIST
I	1239.00		NIST
I	1219.00		NIST
I	1214.00		NIST
I	1219.00		NIST
I	Outlier 1182.00		NIST
I	1216.00		NIST
I	1220.00		NIST
I	1210.00		NIST
I	1229.00		NIST
I	1239.00		NIST
I	1240.00		NIST
I	1216.00		NIST
I	1240.00		NIST
I	1210.00		NIST
I	1209.00		NIST
I	1209.00		NIST
I	1209.00		NIST
I	1210.00		NIST
I	1210.00		NIST
I	1211.00		NIST
I	1212.00		NIST
I	Outlier 1180.00		NIST
I	Outlier 1180.00		NIST
I	1234.00		NIST
I	1229.00		NIST
I	1210.00		NIST
I	1225.00		NIST
I	1218.00		NIST
S°liquid	217.86	J/mol×K	NIST
Tboil	[399.35; 403.85]	K
Tboil	402.53	K	KDB
Tboil	402.20	K	Isobaric Vapor Liquid Equilibrium Data for the Binary System of Water + 2-Methylpyridine at 101.3, 60.0, and 20.0 kPa
Tboil	402.00	K	NIST
Tboil	402.60	K	NIST
Tboil	401.95	K	NIST
Tboil	402.40 ± 0.30	K	NIST
Tboil	402.65 ± 1.00	K	NIST
Tboil	402.35 ± 0.20	K	NIST
Tboil	402.41 ± 0.20	K	NIST
Tboil	402.45 ± 0.30	K	NIST
Tboil	401.15 ± 1.50	K	NIST
Tboil	401.15 ± 2.00	K	NIST
Tboil	401.00 ± 1.00	K	NIST
Tboil	402.57 ± 0.10	K	NIST
Tboil	402.62 ± 0.05	K	NIST
Tboil	402.59 ± 0.06	K	NIST
Tboil	402.55 ± 0.15	K	NIST
Tboil	402.25 ± 0.50	K	NIST
Tboil	402.45 ± 0.25	K	NIST
Tboil	402.95 ± 0.40	K	NIST
Tboil	402.54 ± 0.20	K	NIST
Tboil	402.58 ± 0.08	K	NIST
Tboil	402.80 ± 0.20	K	NIST
Tboil	402.59 ± 0.20	K	NIST
Tboil	401.65 ± 2.00	K	NIST
Tboil	402.65 ± 2.00	K	NIST
Tboil	402.59 ± 0.08	K	NIST
Tboil	Outlier 403.85 ± 0.50	K	NIST
Tboil	402.15 ± 1.50	K	NIST
Tboil	Outlier 400.15 ± 1.50	K	NIST
Tboil	402.55 ± 0.30	K	NIST
Tboil	402.25 ± 0.30	K	NIST
Tboil	401.45 ± 0.50	K	NIST
Tboil	401.20 ± 1.50	K	NIST
Tboil	401.15 ± 1.50	K	NIST
Tboil	401.95 ± 0.30	K	NIST
Tboil	401.15 ± 1.00	K	NIST
Tboil	401.15 ± 1.00	K	NIST
Tboil	Outlier 399.35 ± 2.00	K	NIST
Tc	[621.00; 621.10]	K
Tc	621.00	K	KDB
Tc	621.00	K	NIST
Tc	621.10 ± 1.00	K	NIST
Tfus	[203.25; 208.95]	K
Tfus	206.47	K	KDB
Tfus	204.35 ± 0.50	K	NIST
Tfus	206.29 ± 0.20	K	NIST
Tfus	206.29 ± 0.15	K	NIST
Tfus	206.29 ± 0.15	K	NIST
Tfus	206.29 ± 0.15	K	NIST
Tfus	203.25	K	NIST
Tfus	207.15 ± 1.00	K	NIST
Tfus	203.40 ± 0.20	K	NIST
Tfus	206.41 ± 0.06	K	NIST
Tfus	206.60 ± 0.10	K	NIST
Tfus	208.95 ± 0.30	K	NIST
Tfus	206.55 ± 0.50	K	NIST
Tfus	203.25 ± 0.30	K	NIST
Ttriple	[206.44; 206.46]	K
Ttriple	206.45	K	KDB
Ttriple	206.46 ± 0.05	K	NIST
Ttriple	206.44 ± 0.03	K	NIST
Vc	0.292	m3/kmol	KDB
Zc	0.2601430		KDB

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[157.07; 160.14]	J/mol×K	[293.15; 303.15]
Cp,liquid	157.07	J/mol×K	293.15	Excess heat capacities of 1-methyl pyrrolidin-2-one and pyridine orpicolines mixtures
Cp,liquid	158.86	J/mol×K	298.15	Excess heat capacities of 1-methyl pyrrolidin-2-one and pyridine orpicolines mixtures
Cp,liquid	158.41	J/mol×K	298.15	NIST
Cp,liquid	160.14	J/mol×K	303.15	Excess heat capacities of 1-methyl pyrrolidin-2-one and pyridine orpicolines mixtures
ΔfusH	[9.72; 9.72]	kJ/mol	[206.45; 206.50]
ΔfusH	9.72	kJ/mol	206.45	NIST
ΔfusH	9.72	kJ/mol	206.50	NIST
ΔfusH	9.72	kJ/mol	206.50	NIST
ΔvapH	[33.70; 46.90]	kJ/mol	[227.00; 571.00]
ΔvapH	46.90	kJ/mol	227.00	NIST
ΔvapH	41.60 ± 0.10	kJ/mol	313.00	NIST
ΔvapH	40.70 ± 0.10	kJ/mol	328.00	NIST
ΔvapH	39.80 ± 0.10	kJ/mol	343.00	NIST
ΔvapH	42.00	kJ/mol	347.50	NIST
ΔvapH	38.80 ± 0.10	kJ/mol	359.00	NIST
ΔvapH	38.30 ± 0.10	kJ/mol	368.00	NIST
ΔvapH	39.80	kJ/mol	370.00	NIST
ΔvapH	33.70 ± 0.30	kJ/mol	374.50	NIST
ΔvapH	36.40 ± 0.10	kJ/mol	374.50	NIST
ΔvapH	38.80 ± 0.10	kJ/mol	374.50	NIST
ΔvapH	41.20 ± 0.10	kJ/mol	374.50	NIST
ΔvapH	37.70 ± 0.10	kJ/mol	379.00	NIST
ΔvapH	39.10	kJ/mol	397.00	NIST
ΔvapH	39.10	kJ/mol	398.50	NIST
ΔvapH	36.20 ± 0.10	kJ/mol	402.00	NIST
ΔvapH	36.17	kJ/mol	402.60	NIST
ΔvapH	36.50	kJ/mol	483.00	NIST
ΔvapH	35.40	kJ/mol	571.00	NIST
n0	[1.49840; 1.49840]		[298.15; 298.15]
n0	1.49840		298.15	Bubble temperature measurements on seven binary mixtures formed by ethylbenzene at 94.7 kPa
n0	1.49840		298.15	Bubble Temperature Measurements on Binary Mixtures Formed by Cyclohexane at 94.7 kPa
ρl	[930.41; 950.00]	kg/m3	[288.00; 308.15]
ρl	950.00	kg/m3	288.00	KDB
ρl	943.34	kg/m3	293.15	Viscosity of Associated Mixtures Approximated by the Grunberg-Nissan Model
ρl	944.40	kg/m3	293.15	Thermodynamic Properties of Ternary Mixtures Containing Ionic Liquid and Organic Liquids: Excess Molar Volume and Excess Isentropic Compressibility
ρl	939.80	kg/m3	298.15	Thermodynamic studies of molecular interactions in mixtures of o-toulidine with pyridine and picolines: Excess molar volumes, excess molar enthalpies, and excess isentropic compressibilities
ρl	939.80	kg/m3	298.15	Thermodynamic and topological investigations of ternary mixtures with o-toluidine, tetrahydropyran, and picolines: Excess molar volume and excess isentropic compressibility
ρl	939.80	kg/m3	298.15	Thermodynamic Properties of Ternary Mixtures Containing Ionic Liquid and Organic Liquids: Excess Molar Volume and Excess Isentropic Compressibility
ρl	935.12	kg/m3	303.15	Thermodynamic Properties of Ternary Mixtures Containing Ionic Liquid and Organic Liquids: Excess Molar Volume and Excess Isentropic Compressibility
ρl	930.41	kg/m3	308.15	Thermodynamic Properties of Ternary Mixtures Containing Ionic Liquid and Organic Liquids: Excess Molar Volume and Excess Isentropic Compressibility
ΔfusS	47.10	J/mol×K	206.45	NIST
csound,fluid	[1339.89; 1400.54]	m/s	[293.15; 308.15]
csound,fluid	1400.54	m/s	293.15	Topological investigations of binary mixtures containing ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate and pyridine or isomeric picolines
csound,fluid	1380.12	m/s	298.15	Topological investigations of binary mixtures containing ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate and pyridine or isomeric picolines
csound,fluid	1380.12	m/s	298.15	Thermodynamic properties of binary mixtures of tetrahydropyran with pyridine and isomeric picolines: Excess molar volumes, excess molar enthalpies and excess isentropic compressibilities
csound,fluid	1361.02	m/s	303.15	Topological investigations of binary mixtures containing ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate and pyridine or isomeric picolines
csound,fluid	1361.02	m/s	303.15	Thermodynamic properties of binary mixtures of tetrahydropyran with pyridine and isomeric picolines: Excess molar volumes, excess molar enthalpies and excess isentropic compressibilities
csound,fluid	1339.89	m/s	308.15	Topological investigations of binary mixtures containing ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate and pyridine or isomeric picolines
csound,fluid	1339.89	m/s	308.15	Thermodynamic properties of binary mixtures of tetrahydropyran with pyridine and isomeric picolines: Excess molar volumes, excess molar enthalpies and excess isentropic compressibilities

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.66]	kPa	[294.88; 428.51]	The Yaws Handbook of Vapor Pressure
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.45105e+01
Coefficient B			-3.48004e+03
Coefficient C			-5.02010e+01
Temperature range, min.			294.88
Temperature range, max.			428.51
Pvap	1.33	kPa	294.88	Calculated Property
Pvap	3.01	kPa	309.73	Calculated Property
Pvap	6.21	kPa	324.58	Calculated Property
Pvap	11.92	kPa	339.42	Calculated Property
Pvap	21.45	kPa	354.27	Calculated Property
Pvap	36.54	kPa	369.12	Calculated Property
Pvap	59.37	kPa	383.97	Calculated Property
Pvap	92.57	kPa	398.81	Calculated Property
Pvap	139.18	kPa	413.66	Calculated Property
Pvap	202.66	kPa	428.51	Calculated Property
Pvap	[4.39e-04; 4388.89]	kPa	[206.44; 621.00]	KDB Vapor Pressure Data
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			7.64716e+01
Coefficient B			-7.53285e+03
Coefficient C			-8.99076e+00
Coefficient D			4.84390e-06
Temperature range, min.			206.44
Temperature range, max.			621.00
Pvap	4.39e-04	kPa	206.44	Calculated Property
Pvap	0.06	kPa	252.50	Calculated Property
Pvap	1.54	kPa	298.56	Calculated Property
Pvap	14.31	kPa	344.63	Calculated Property
Pvap	71.80	kPa	390.69	Calculated Property
Pvap	242.26	kPa	436.75	Calculated Property
Pvap	625.88	kPa	482.81	Calculated Property
Pvap	1345.44	kPa	528.88	Calculated Property
Pvap	2542.92	kPa	574.94	Calculated Property
Pvap	4388.89	kPa	621.00	Calculated Property

Similar Compounds

Find more compounds similar to Pyridine, 2-methyl-.

Mixtures

• Pyridine, 2-methyl- + Methyl Alcohol
• Pyridine, 2-methyl- + Ethylbenzene
• Pyridine, 2-methyl- + o-Toluidine
• Tetrahydropyran + Pyridine, 2-methyl- + o-Toluidine
• Tetrahydropyran + Pyridine, 2-methyl-
• 2-Pyrrolidinone, 1-methyl- + Pyridine, 2-methyl-
• Pyridine, 2-methyl- + Water
• Pyridine, 2-methyl- + Cyclohexane

Sources

• KDB Pure (Korean Thermophysical Properties Databank)
• KDB Vapor Pressure Data
• Cheméo Relay (1.0)
• Crippen Method
• Crippen Method
• Viscosity of Associated Mixtures Approximated by the Grunberg-Nissan Model
• Bubble temperature measurements on seven binary mixtures formed by ethylbenzene at 94.7 kPa
• Thermodynamic studies of molecular interactions in mixtures of o-toulidine with pyridine and picolines: Excess molar volumes, excess molar enthalpies, and excess isentropic compressibilities
• Thermodynamic and topological investigations of ternary mixtures with o-toluidine, tetrahydropyran, and picolines: Excess molar volume and excess isentropic compressibility
• Topological investigations of binary mixtures containing ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate and pyridine or isomeric picolines
• Thermodynamic properties of binary mixtures of tetrahydropyran with pyridine and isomeric picolines: Excess molar volumes, excess molar enthalpies and excess isentropic compressibilities
• Excess molar enthalpies of ternary mixtures containing o-toluidine + tetrahydropyran with pyridine or isomeric picolines or benzene or toluene at 308.15K
• Excess heat capacities of 1-methyl pyrrolidin-2-one and pyridine orpicolines mixtures
• Excess molar enthalpies of ternary mixtures containing1-ethyl-3-methylimidazolium tetrafluoroborate and organic solvents
• Isobaric Vapor Liquid Equilibrium Data for the Binary System of Water + 2-Methylpyridine at 101.3, 60.0, and 20.0 kPa
• Bubble Temperature Measurements on Binary Mixtures Formed by Cyclohexane at 94.7 kPa
• Thermodynamic Properties of Ternary Mixtures Containing Ionic Liquid and Organic Liquids: Excess Molar Volume and Excess Isentropic Compressibility
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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Outlier This icon means that the value is more than 2 standard deviations away from the property mean.