Chemical Properties of Pyridine, 2,3-dimethyl- (CAS 583-61-9)

InChI

InChI=1S/C7H9N/c1-6-4-3-5-8-7(6)2/h3-5H,1-2H3

InChI Key

HPYNZHMRTTWQTB-UHFFFAOYSA-N

Formula

C7H9N

SMILES

Cc1cccnc1C

Molecular Weight¹

107.15

CAS

583-61-9

Other Names

• 2,3-Dimethylpyridine
• 2,3-LUTIDINE

• 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_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).
• P_vap : Vapor pressure (kPa).
• ρ_l : Liquid Density (kg/m³).
• I_np : Non-polar retention indices.
• I : Polar retention indices.
• S°_liquid : Liquid phase molar entropy at standard conditions (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).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
PAff	958.90	kJ/mol	NIST
BasG	927.00	kJ/mol	NIST
ΔcH°liquid	-4060.20	kJ/mol	NIST
μ	2.20	debye	KDB
ΔfH°gas	[68.29; 68.30]	kJ/mol
ΔfH°gas	68.29	kJ/mol	KDB
ΔfH°gas	68.30	kJ/mol	NIST
ΔfH°liquid	19.30	kJ/mol	NIST
ΔvapH°	[47.60; 52.00]	kJ/mol
ΔvapH°	47.74	kJ/mol	NIST
ΔvapH°	52.00 ± 0.60	kJ/mol	NIST
ΔvapH°	47.60	kJ/mol	NIST
ΔvapH°	48.95	kJ/mol	NIST
IE	[8.85; 9.10]	eV
IE	8.85 ± 0.02	eV	NIST
IE	9.10	eV	NIST
log10WS	[0.38; 0.38]
log10WS	0.38		Aq. Sol...
log10WS	0.38		Estimat...
logPoct/wat	1.698		Crippen Calculated Property
McVol	95.710	ml/mol	McGowan Calculated Property
Inp	[909.00; 963.00]
Inp	934.30		NIST
Inp	941.00		NIST
Inp	933.90		NIST
Inp	937.00		NIST
Inp	933.00		NIST
Inp	940.00		NIST
Inp	926.00		NIST
Inp	924.00		NIST
Inp	924.00		NIST
Inp	925.00		NIST
Inp	926.00		NIST
Inp	Outlier 963.00		NIST
Inp	945.00		NIST
Inp	936.00		NIST
Inp	933.00		NIST
Inp	923.40		NIST
Inp	909.00		NIST
Inp	952.20		NIST
Inp	945.00		NIST
Inp	953.00		NIST
Inp	919.00		NIST
Inp	919.00		NIST
Inp	953.00		NIST
I	[1358.00; 1432.00]
I	1424.00		NIST
I	1407.00		NIST
I	1403.00		NIST
I	1420.00		NIST
I	1407.00		NIST
I	1408.00		NIST
I	1432.00		NIST
I	Outlier 1358.00		NIST
S°liquid	243.70	J/mol×K	NIST
Tboil	[430.75; 436.70]	K
Tboil	434.41	K	KDB
Tboil	436.70	K	NIST
Tboil	434.40	K	NIST
Tboil	433.60 ± 1.00	K	NIST
Tboil	433.40 ± 0.50	K	NIST
Tboil	430.75 ± 1.00	K	NIST
Tc	[655.40; 655.45]	K
Tc	655.40	K	KDB
Tc	655.40	K	NIST
Tc	655.45 ± 0.30	K	NIST
Tc	655.45 ± 1.00	K	NIST
Tfus	[257.88; 258.35]	K
Tfus	257.88	K	KDB
Tfus	258.35 ± 0.30	K	NIST
Tfus	257.93 ± 0.03	K	NIST
Ttriple	258.57 ± 0.01	K	NIST

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	189.55	J/mol×K	298.15	NIST
ΔfusH	[13.48; 13.48]	kJ/mol	[258.60; 258.60]
ΔfusH	13.48	kJ/mol	258.60	NIST
ΔfusH	13.48	kJ/mol	258.60	NIST
ΔvapH	[37.40; 46.90]	kJ/mol	[313.00; 434.40]
T(K) Enthalpy of vaporization at a given temperature (kJ/mol) 38 40 42 44 46 350 400
ΔvapH	46.90	kJ/mol	313.00	NIST
ΔvapH	45.00	kJ/mol	343.00	NIST
ΔvapH	43.50	kJ/mol	368.00	NIST
ΔvapH	40.20	kJ/mol	402.00	NIST
ΔvapH	37.40	kJ/mol	402.00	NIST
ΔvapH	45.20	kJ/mol	402.00	NIST
ΔvapH	42.70	kJ/mol	402.00	NIST
ΔvapH	43.00	kJ/mol	404.00	NIST
ΔvapH	39.08	kJ/mol	434.40	NIST
ρl	942.00	kg/m3	298.00	KDB

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.66]	kPa	[322.48; 464.98]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.44984e+01
Coefficient B			-3.70307e+03
Coefficient C			-6.18990e+01
Temperature range, min.			322.48
Temperature range, max.			464.98
T(K) Vapor pressure (kPa) 0 50 100 150 200 350 400 450
Pvap	1.33	kPa	322.48	Calculated Property
Pvap	3.01	kPa	338.31	Calculated Property
Pvap	6.22	kPa	354.15	Calculated Property
Pvap	11.93	kPa	369.98	Calculated Property
Pvap	21.46	kPa	385.81	Calculated Property
Pvap	36.56	kPa	401.65	Calculated Property
Pvap	59.40	kPa	417.48	Calculated Property
Pvap	92.60	kPa	433.31	Calculated Property
Pvap	139.20	kPa	449.15	Calculated Property
Pvap	202.66	kPa	464.98	Calculated Property
Pvap	[14.28; 117.32]	kPa	[372.15; 440.00]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			6.39525e+01
Coefficient B			-7.61891e+03
Coefficient C			-6.94364e+00
Coefficient D			2.02753e-06
Temperature range, min.			372.15
Temperature range, max.			440.00
T(K) Vapor pressure (kPa) 20 40 60 80 100 120 380 400 420 440
Pvap	14.28	kPa	372.15	Calculated Property
Pvap	18.87	kPa	379.69	Calculated Property
Pvap	24.62	kPa	387.23	Calculated Property
Pvap	31.74	kPa	394.77	Calculated Property
Pvap	40.45	kPa	402.31	Calculated Property
Pvap	51.00	kPa	409.84	Calculated Property
Pvap	63.67	kPa	417.38	Calculated Property
Pvap	78.74	kPa	424.92	Calculated Property
Pvap	96.52	kPa	432.46	Calculated Property
Pvap	117.32	kPa	440.00	Calculated Property

Similar Compounds

Find more compounds similar to Pyridine, 2,3-dimethyl-.

Sources

• KDB Vapor Pressure Data
• Crippen Method
• KDB
• Aqueous Solubility Prediction Method
• Estimated Solubility Method
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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