Chemical Properties of Pyridine, 3-methyl- (CAS 108-99-6)

InChI

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

InChI Key

ITQTTZVARXURQS-UHFFFAOYSA-N

Formula

C6H7N

SMILES

Cc1cccnc1

Molecular Weight¹

93.13

CAS

108-99-6

Other Names

• .beta.-picoline
• 3-Methylpyridine
• 3-PICOLINE
• 5-Methylpyridine
• BETA-PICOLINE
• NSC 18251
• m-Methylpyridine
• m-Picoline
• meta-Methylpyridine
• «beta»-Methylpyridine
• «beta»-Picoline
• «beta»-Methylpyridine
• «beta»-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).
• η : Dynamic viscosity (Pa×s).
• 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_subH : Enthalpy of sublimation 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).
• 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	0.3060		KDB
PAff	943.40	kJ/mol	NIST
BasG	911.60	kJ/mol	NIST
ΔcH°liquid	[-3429.80; -3300.40]	kJ/mol
ΔcH°liquid	-3300.40 ± 1.30	kJ/mol	NIST
ΔcH°liquid	-3423.20 ± 0.50	kJ/mol	NIST
ΔcH°liquid	-3429.80 ± 1.00	kJ/mol	NIST
ΔcH°liquid	-3402.00	kJ/mol	NIST
μ	2.40	debye	KDB
ΔfG°	184.40	kJ/mol	KDB
ΔfH°gas	[75.50; 113.60]	kJ/mol
ΔfH°gas	106.20	kJ/mol	KDB
ΔfH°gas	103.60 ± 1.30	kJ/mol	NIST
ΔfH°gas	106.10 ± 0.71	kJ/mol	NIST
ΔfH°gas	113.60 ± 1.00	kJ/mol	NIST
ΔfH°gas	113.60 ± 1.00	kJ/mol	NIST
ΔfH°gas	Outlier 75.50	kJ/mol	NIST
ΔfH°liquid	[33.00; 68.30]	kJ/mol
ΔfH°liquid	61.10 ± 1.30	kJ/mol	NIST
ΔfH°liquid	61.71 ± 0.59	kJ/mol	NIST
ΔfH°liquid	68.30 ± 1.00	kJ/mol	NIST
ΔfH°liquid	33.00	kJ/mol	NIST
ΔvapH°	[42.50; 45.30]	kJ/mol
ΔvapH°	44.57	kJ/mol	NIST
ΔvapH°	44.50 ± 2.00	kJ/mol	NIST
ΔvapH°	42.50 ± 0.30	kJ/mol	NIST
ΔvapH°	42.50	kJ/mol	NIST
ΔvapH°	44.64	kJ/mol	NIST
ΔvapH°	44.60 ± 0.10	kJ/mol	NIST
ΔvapH°	44.43	kJ/mol	NIST
ΔvapH°	44.40	kJ/mol	NIST
ΔvapH°	45.23	kJ/mol	NIST
ΔvapH°	45.30	kJ/mol	NIST
IE	[8.90; 9.43]	eV
IE	9.00	eV	NIST
IE	8.90	eV	NIST
IE	9.43 ± 0.05	eV	NIST
IE	9.40 ± 0.10	eV	NIST
IE	9.04 ± 0.03	eV	NIST
IE	9.30	eV	NIST
IE	9.31	eV	NIST
IE	9.29	eV	NIST
log10WS	-1.71		Crippen Calculated Property
logPoct/wat	1.390		Crippen Calculated Property
McVol	81.620	ml/mol	McGowan Calculated Property
Pc	4480.00	kPa	KDB
Inp	[133.54; 877.00]
Inp	844.90		NIST
Inp	852.00		NIST
Inp	877.00		NIST
Inp	843.40		NIST
Inp	846.00		NIST
Inp	857.00		NIST
Inp	852.00		NIST
Inp	845.00		NIST
Inp	859.00		NIST
Inp	841.00		NIST
Inp	874.00		NIST
Inp	826.80		NIST
Inp	856.00		NIST
Inp	863.00		NIST
Inp	871.00		NIST
Inp	850.00		NIST
Inp	849.00		NIST
Inp	849.00		NIST
Inp	869.00		NIST
Inp	838.00		NIST
Inp	860.00		NIST
Inp	831.00		NIST
Inp	852.00		NIST
Inp	850.00		NIST
Inp	850.00		NIST
Inp	861.00		NIST
Inp	857.00		NIST
Inp	868.00		NIST
Inp	859.00		NIST
Inp	841.00		NIST
Inp	863.00		NIST
Inp	874.00		NIST
Inp	866.40		NIST
Inp	864.00		NIST
Inp	864.00		NIST
Inp	845.00		NIST
Inp	850.00		NIST
Inp	868.00		NIST
Inp	841.00		NIST
Inp	832.00		NIST
Inp	871.00		NIST
Inp	872.00		NIST
Inp	834.00		NIST
Inp	835.00		NIST
Inp	832.00		NIST
Inp	832.00		NIST
Inp	Outlier 133.54		NIST
Inp	Outlier 133.54		NIST
I	[1264.00; 1347.00]
I	1310.00		NIST
I	1303.00		NIST
I	1284.00		NIST
I	1297.00		NIST
I	1302.00		NIST
I	1289.00		NIST
I	Outlier 1347.00		NIST
I	1289.00		NIST
I	1290.00		NIST
I	1290.00		NIST
I	1292.00		NIST
I	1319.00		NIST
I	1291.00		NIST
I	1290.00		NIST
I	1303.00		NIST
I	1304.00		NIST
I	1304.00		NIST
I	1298.00		NIST
I	1284.00		NIST
I	1284.00		NIST
I	1306.00		NIST
I	1305.00		NIST
I	Outlier 1338.00		NIST
I	1323.00		NIST
I	1292.00		NIST
I	1289.00		NIST
I	1292.00		NIST
I	Outlier 1264.00		NIST
I	1291.00		NIST
I	1288.00		NIST
I	1301.00		NIST
I	1319.00		NIST
I	1305.00		NIST
I	1305.00		NIST
I	1311.00		NIST
I	1283.00		NIST
I	1285.00		NIST
I	1286.00		NIST
I	1287.00		NIST
I	1287.00		NIST
I	1287.00		NIST
I	1288.00		NIST
I	1288.00		NIST
I	1310.00		NIST
I	1289.00		NIST
S°liquid	216.31	J/mol×K	NIST
Tboil	417.29	K	KDB
Tc	[644.85; 645.00]	K
Tc	645.00	K	KDB
Tc	645.00	K	NIST
Tc	644.85 ± 0.50	K	NIST
Tfus	[251.95; 255.45]	K
Tfus	255.01	K	KDB
Tfus	254.85 ± 0.50	K	NIST
Tfus	255.15 ± 1.00	K	NIST
Tfus	254.95 ± 0.06	K	NIST
Tfus	254.63 ± 0.35	K	NIST
Tfus	255.25 ± 0.20	K	NIST
Tfus	Outlier 251.95 ± 0.70	K	NIST
Tfus	255.45 ± 0.30	K	NIST
Tfus	254.85 ± 0.30	K	NIST
Ttriple	[255.01; 255.01]	K
Ttriple	255.01	K	KDB
Ttriple	255.01 ± 0.06	K	NIST
Vc	0.288	m3/kmol	KDB
Zc	0.2405880		KDB

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[156.05; 160.83]	J/mol×K	[293.15; 303.15]
Cp,liquid	156.05	J/mol×K	293.15	Excess ...
Cp,liquid	158.75	J/mol×K	298.15	Excess ...
Cp,liquid	158.69	J/mol×K	298.15	NIST
Cp,liquid	160.83	J/mol×K	303.15	Excess ...
η	[0.0005390; 0.0009459]	Pa×s	[293.15; 343.15]
T(K) Dynamic viscosity (Pa×s) 5.00e-4 6.00e-4 7.00e-4 8.00e-4 9.00e-4 300 320 340
η	0.0009459	Pa×s	293.15	Density...
η	0.0009459	Pa×s	293.15	Densiti...
η	0.0008318	Pa×s	303.15	Density...
η	0.0008318	Pa×s	303.15	Densiti...
η	0.0007352	Pa×s	313.15	Density...
η	0.0007352	Pa×s	313.15	Densiti...
η	0.0006565	Pa×s	323.15	Density...
η	0.0006565	Pa×s	323.15	Densiti...
η	0.0005936	Pa×s	333.15	Density...
η	0.0005936	Pa×s	333.15	Densiti...
η	0.0005390	Pa×s	343.15	Density...
η	0.0005390	Pa×s	343.15	Densiti...
ΔfusH	[14.18; 14.18]	kJ/mol	[255.00; 255.01]
ΔfusH	14.18	kJ/mol	255.00	NIST
ΔfusH	14.18	kJ/mol	255.00	NIST
ΔfusH	14.18	kJ/mol	255.01	NIST
ΔsubH	62.20	kJ/mol	240.00	NIST
ΔvapH	[36.10; 43.60]	kJ/mol	[313.00; 603.00]
T(K) Enthalpy of vaporization at a given temperature (kJ/mol) 36 38 40 42 44 400 500 600
ΔvapH	43.60 ± 0.10	kJ/mol	313.00	NIST
ΔvapH	42.70 ± 0.10	kJ/mol	328.00	NIST
ΔvapH	42.00 ± 0.10	kJ/mol	343.00	NIST
ΔvapH	40.40 ± 0.10	kJ/mol	368.00	NIST
ΔvapH	40.20 ± 0.10	kJ/mol	372.00	NIST
ΔvapH	40.90 ± 0.10	kJ/mol	385.50	NIST
ΔvapH	38.60 ± 0.10	kJ/mol	385.50	NIST
ΔvapH	43.20 ± 0.10	kJ/mol	385.50	NIST
ΔvapH	36.10 ± 0.20	kJ/mol	385.50	NIST
ΔvapH	41.00	kJ/mol	386.00	NIST
ΔvapH	38.90 ± 0.10	kJ/mol	393.00	NIST
ΔvapH	41.30	kJ/mol	402.50	NIST
ΔvapH	41.30	kJ/mol	402.50	NIST
ΔvapH	40.10	kJ/mol	416.00	NIST
ΔvapH	37.40 ± 0.10	kJ/mol	417.00	NIST
ΔvapH	37.35	kJ/mol	417.30	NIST
ΔvapH	37.70	kJ/mol	510.00	NIST
ΔvapH	36.80	kJ/mol	603.00	NIST
ρl	[942.83; 961.00]	kg/m3	[288.00; 308.15]
T(K) Liquid Density (kg/m3) 945 950 955 960 290 295 300 305
ρl	961.00	kg/m3	288.00	KDB
ρl	956.58	kg/m3	293.15	Thermod...
ρl	952.00	kg/m3	298.15	Thermod...
ρl	952.00	kg/m3	298.15	Thermod...
ρl	952.61	kg/m3	298.15	Determi...
ρl	952.00	kg/m3	298.15	Thermod...
ρl	947.45	kg/m3	303.15	Thermod...
ρl	942.83	kg/m3	308.15	Thermod...
ΔfusS	55.61	J/mol×K	255.01	NIST
csound,fluid	[1384.03; 1445.91]	m/s	[293.15; 308.15]
T(K) Speed of sound in fluid (m/s) 1380 1390 1400 1410 1420 1430 1440 1450 295 300 305
csound,fluid	1445.91	m/s	293.15	Topolog...
csound,fluid	1424.01	m/s	298.15	Topolog...
csound,fluid	1424.01	m/s	298.15	Thermod...
csound,fluid	1404.05	m/s	303.15	Topolog...
csound,fluid	1404.05	m/s	303.15	Thermod...
csound,fluid	1384.03	m/s	308.15	Topolog...
csound,fluid	1384.03	m/s	308.15	Thermod...

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.66]	kPa	[306.29; 444.55]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.43698e+01
Coefficient B			-3.51056e+03
Coefficient C			-5.69960e+01
Temperature range, min.			306.29
Temperature range, max.			444.55
T(K) Vapor pressure (kPa) 0 50 100 150 200 350 400
Pvap	1.33	kPa	306.29	Calculated Property
Pvap	3.02	kPa	321.65	Calculated Property
Pvap	6.25	kPa	337.01	Calculated Property
Pvap	12.00	kPa	352.38	Calculated Property
Pvap	21.59	kPa	367.74	Calculated Property
Pvap	36.77	kPa	383.10	Calculated Property
Pvap	59.68	kPa	398.46	Calculated Property
Pvap	92.90	kPa	413.83	Calculated Property
Pvap	139.44	kPa	429.19	Calculated Property
Pvap	202.66	kPa	444.55	Calculated Property
Pvap	[0.04; 4395.51]	kPa	[255.01; 645.00]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			7.64539e+01
Coefficient B			-7.79454e+03
Coefficient C			-8.93688e+00
Coefficient D			4.40804e-06
Temperature range, min.			255.01
Temperature range, max.			645.00
T(K) Vapor pressure (kPa) 0 1000 2000 3000 4000 300 400 500 600
Pvap	0.04	kPa	255.01	Calculated Property
Pvap	0.82	kPa	298.34	Calculated Property
Pvap	7.53	kPa	341.67	Calculated Property
Pvap	38.81	kPa	385.01	Calculated Property
Pvap	135.48	kPa	428.34	Calculated Property
Pvap	361.88	kPa	471.67	Calculated Property
Pvap	800.10	kPa	515.00	Calculated Property
Pvap	1544.39	kPa	558.34	Calculated Property
Pvap	2701.05	kPa	601.67	Calculated Property
Pvap	4395.51	kPa	645.00	Calculated Property

Similar Compounds

Find more compounds similar to Pyridine, 3-methyl-.

Mixtures

• Pyridine, 3-methyl- + Water
• o-Toluidine + Pyridine, 3-methyl-
• Tetrahydropyran + o-Toluidine + Pyridine, 3-methyl-
• Tetrahydropyran + Pyridine, 3-methyl-
• 2-Pyrrolidinone, 1-methyl- + Pyridine, 3-methyl-
• Pyridine, 3-methyl- + Niacin
• Pyridine, 3-methyl- + Niacin + Water
• Pyridine, 3-methyl- + Methyl Alcohol

Sources

• KDB Pure (Korean Thermophysical Properties Databank)
• KDB Vapor Pressure Data
• Crippen Method
• Crippen Method
• Extraction of aromatic nitrogen compounds from heptane quinolinium and isoquinolinium based ionic liquids
• Density and viscosity of (3-picoline + water) binary mixtures from T = (293.15 to 343.15) K
• 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
• Solubility of Niacin in 3-Picoline + Water from (287.65 to 359.15) K
• Densities and Viscosities of Niacin + 3-Picoline + Water Mixtures from (293.15 to 343.15) K
• Determination of Viscosity, Ionic Conductivity, and Diffusion Coefficients in Some Binary Systems: Ionic Liquids + Molecular Solvents
• Determination of Infinite Dilution Partial Molar Excess Enthalpies and Volumes for Some Ionic Liquid Precursors in Water and Methanol Using Tandem Flow Mixing Calorimetry and Vibrating-Tube Densimetry
• 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.