Tetracosane (CAS 646-31-1)

InChI

InChI=1S/C24H50/c1-3-5-7-9-11-13-15-17-19-21-23-24-22-20-18-16-14-12-10-8-6-4-2/h3-24H2,1-2H3

InChI Key

POOSGDOYLQNASK-UHFFFAOYSA-N

Formula

C24H50

SMILES

CCCCCCCCCCCCCCCCCCCCCCCC

Molecular Weight¹

338.65

CAS

646-31-1

Other Names

n-tetracosane

ω : Acentric Factor.
C_p,gas : Ideal gas heat capacity (J/mol×K).
C_p,liquid : Liquid phase heat capacity (J/mol×K).
C_p,solid : Solid phase heat capacity (J/mol×K).
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_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
Δ_fusH : Enthalpy of fusion at a given temperature (kJ/mol).
Δ_subH° : Enthalpy of sublimation at standard conditions (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_sub : Sublimation pressure (kPa).
P_vap : Vapor pressure (kPa).
I_np : Non-polar retention indices.
Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
γ : Surface Tension (N/m).
S°_{solid,1 bar} : Solid phase molar entropy at standard conditions (J/mol×K).
T_boil : Normal Boiling Point Temperature (K).
T_boilr : Boiling point at reduced pressure (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.

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Physical Properties

Property	Value	Unit	Source
ω	1.0071		Relay (1.0) Calculated Property
Δ_fG°	151.20	kJ/mol	Joback Calculated Property
Δ_fH°_gas	-547.51	kJ/mol	Relay (1.0) Calculated Property
Δ_fusH°	57.92	kJ/mol	Joback Calculated Property
Δ_subH°	162.00 ± 12.00	kJ/mol	NIST
Δ_vapH°	[121.90; 126.80]	kJ/mol
Δ_vapH°	121.90	kJ/mol	NIST
Δ_vapH°	126.80 ± 0.40	kJ/mol	NIST
Δ_vapH°	125.70 ± 1.60	kJ/mol	NIST
Δ_vapH°	126.20 ± 2.30	kJ/mol	NIST
IE	10.03	eV	Relay (1.0) Calculated Property
log₁₀WS	-9.76		Relay (1.0) Calculated Property
logP_oct/wat	9.608		Crippen Calculated Property
McVol	349.020	ml/mol	McGowan Calculated Property
P_c	[866.00; 900.00]	kPa
P_c	870.00	kPa	KDB
P_c	900.00 ± 200.00	kPa	NIST
P_c	866.00 ± 40.00	kPa	NIST
I_np	[366.00; 402.60]
I_np	382.35		NIST
I_np	389.39		NIST
I_np	402.50		NIST
I_np	402.60		NIST
I_np	366.00		NIST
I_np	382.35		NIST
S°_{solid,1 bar}	651.00	J/mol×K	NIST
T_boil	[516.00; 664.50]	K
T_boil	664.50	K	NIST
T_boil	597.30 ± 4.00	K	NIST
T_boil	516.00 ± 6.00	K	NIST
T_c	[799.80; 801.00]	K
T_c	801.00	K	Critical temperatures and pressures of C40, C44, and C60 normal alkanes measured by the pulse-heating technique
T_c	800.00	K	KDB
T_c	800.00 ± 8.00	K	NIST
T_c	799.80 ± 3.00	K	NIST
T_fus	[320.50; 328.00]	K
T_fus	321.21	K	Solid-liquid equilibria of eicosane, tetracosane or biphenyl + 1- octadecanol, or + 1-eicosanol mixtures
T_fus	324.10	K	Solid-liquid equilibria of indole binary systems
T_fus	323.75 ± 0.30	K	NIST
T_fus	324.55 ± 0.15	K	NIST
T_fus	323.90 ± 0.20	K	NIST
T_fus	323.75 ± 0.50	K	NIST
T_fus	321.00 ± 4.00	K	NIST
T_fus	323.00 ± 2.00	K	NIST
T_fus	324.08 ± 0.30	K	NIST
T_fus	322.40 ± 3.00	K	NIST
T_fus	324.00 ± 1.00	K	NIST
T_fus	323.80 ± 0.40	K	NIST
T_fus	323.83 ± 0.15	K	NIST
T_fus	324.00 ± 2.00	K	NIST
T_fus	323.00 ± 0.80	K	NIST
T_fus	Outlier 320.50 ± 0.10	K	NIST
T_fus	323.80 ± 0.50	K	NIST
T_fus	323.80 ± 0.50	K	NIST
T_fus	324.30 ± 0.50	K	NIST
T_fus	326.70 ± 1.00	K	NIST
T_fus	324.00 ± 2.00	K	NIST
T_fus	327.00 ± 4.00	K	NIST
T_fus	327.00 ± 2.00	K	NIST
T_fus	324.00 ± 2.00	K	NIST
T_fus	321.60 ± 3.00	K	NIST
T_fus	324.20 ± 1.50	K	NIST
T_fus	325.00 ± 2.00	K	NIST
T_fus	323.20 ± 2.00	K	NIST
T_fus	324.00 ± 2.00	K	NIST
T_fus	322.70 ± 2.00	K	NIST
T_fus	Outlier 328.00 ± 3.00	K	NIST
T_fus	324.00 ± 3.00	K	NIST
T_fus	321.00 ± 4.00	K	NIST
T_fus	324.00 ± 2.00	K	NIST
T_fus	324.30 ± 1.00	K	NIST
T_fus	324.30 ± 1.00	K	NIST
T_fus	324.30 ± 3.00	K	NIST
T_triple	[320.80; 323.65]	K
T_triple	320.80	K	Thermal conductivity of heavy, even-carbon number n-alkanes (C22 to C32)
T_triple	321.40	K	Solubilities of Some Long-Chain n-Alkanes in Dipropyl Ether, Dibutyl Ether, 1-Chlorobutane, and 1-Chlorooctane as Functions of Temperature
T_triple	323.65 ± 1.00	K	NIST
V_c	1.433	m³/kmol	Relay (1.0) Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
C_p,liquid	[772.50; 909.30]	J/mol×K	[330.00; 450.00]

C_p,liquid	774.20	J/mol×K	330.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	772.50	J/mol×K	330.63	NIST
C_p,liquid	785.40	J/mol×K	340.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	796.70	J/mol×K	350.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	805.00	J/mol×K	353.00	NIST
C_p,liquid	808.00	J/mol×K	360.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	819.20	J/mol×K	370.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	830.50	J/mol×K	380.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	841.70	J/mol×K	390.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	853.00	J/mol×K	400.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	864.30	J/mol×K	410.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	875.50	J/mol×K	420.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	886.80	J/mol×K	430.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	898.00	J/mol×K	440.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,liquid	909.30	J/mol×K	450.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
C_p,solid	[601.00; 730.90]	J/mol×K	[298.15; 300.00]
C_p,solid	730.90	J/mol×K	298.15	NIST
C_p,solid	601.00	J/mol×K	300.00	NIST
Δ_fusH	[31.30; 81.75]	kJ/mol	[321.30; 324.10]

Δ_fusH	31.30	kJ/mol	321.30	NIST
Δ_fusH	81.75	kJ/mol	322.00	NIST
Δ_fusH	53.80	kJ/mol	323.40	NIST
Δ_fusH	59.31	kJ/mol	324.10	NIST
Δ_fusH	54.89	kJ/mol	324.10	NIST
Δ_fusH	54.89	kJ/mol	324.10	NIST
Δ_subH	164.90 ± 1.80	kJ/mol	315.50	NIST
Δ_vapH	[86.20; 126.00]	kJ/mol	[298.00; 535.50]

Δ_vapH	116.10	kJ/mol	298.00	A Comparison of Results by Correlation Gas Chromatography with Another Gas Chromatographic Retention Time Technique. The Effects of Retention Time Coincidence on Vaporization Enthalpy and Vapor Pressure
Δ_vapH	121.90	kJ/mol	298.15	Vapor Pressures and Vaporization Enthalpies of the n-Alkanes from C21 to C30 at T = 298.15 K by Correlation Gas Chromatography
Δ_vapH	105.10 ± 0.50	kJ/mol	353.00	NIST
Δ_vapH	112.00	kJ/mol	393.00	NIST
Δ_vapH	126.00 ± 2.00	kJ/mol	405.50	NIST
Δ_vapH	111.20	kJ/mol	418.00	NIST
Δ_vapH	95.20	kJ/mol	452.50	NIST
Δ_vapH	86.20 ± 4.60	kJ/mol	474.00	NIST
Δ_vapH	92.60	kJ/mol	520.50	NIST
Δ_vapH	86.60	kJ/mol	535.50	NIST
P_sub	1.23e-06	kPa	322.94	Vapor and Sublimation Pressures of Three Normal Alkanes: C20, C24, and C28
P_vap	[4.30e-06; 0.01]	kPa	[333.46; 417.75]

P_vap	4.30e-06	kPa	333.46	A Gas Saturation Apparatus for Very Low Vapor or Sublimation Pressure Measurements (10-3 Pa): Vapor-Liquid Equilibria of n-Alkanes (n-C10, n-C24, n-C28)
P_vap	4.35e-05	kPa	353.43	A Gas Saturation Apparatus for Very Low Vapor or Sublimation Pressure Measurements (10-3 Pa): Vapor-Liquid Equilibria of n-Alkanes (n-C10, n-C24, n-C28)
P_vap	4.50e-05	kPa	353.97	A Gas Saturation Apparatus for Very Low Vapor or Sublimation Pressure Measurements (10-3 Pa): Vapor-Liquid Equilibria of n-Alkanes (n-C10, n-C24, n-C28)
P_vap	3.07e-04	kPa	373.17	A Gas Saturation Apparatus for Very Low Vapor or Sublimation Pressure Measurements (10-3 Pa): Vapor-Liquid Equilibria of n-Alkanes (n-C10, n-C24, n-C28)
P_vap	3.16e-04	kPa	373.61	A Gas Saturation Apparatus for Very Low Vapor or Sublimation Pressure Measurements (10-3 Pa): Vapor-Liquid Equilibria of n-Alkanes (n-C10, n-C24, n-C28)
P_vap	5.24e-04	kPa	379.15	A Gas Saturation Apparatus for Very Low Vapor or Sublimation Pressure Measurements (10-3 Pa): Vapor-Liquid Equilibria of n-Alkanes (n-C10, n-C24, n-C28)
P_vap	1.72e-03	kPa	393.20	A Gas Saturation Apparatus for Very Low Vapor or Sublimation Pressure Measurements (10-3 Pa): Vapor-Liquid Equilibria of n-Alkanes (n-C10, n-C24, n-C28)
P_vap	1.72e-03	kPa	393.20	A Gas Saturation Apparatus for Very Low Vapor or Sublimation Pressure Measurements (10-3 Pa): Vapor-Liquid Equilibria of n-Alkanes (n-C10, n-C24, n-C28)
P_vap	2.41e-03	kPa	397.55	A Gas Saturation Apparatus for Very Low Vapor or Sublimation Pressure Measurements (10-3 Pa): Vapor-Liquid Equilibria of n-Alkanes (n-C10, n-C24, n-C28)
P_vap	8.43e-03	kPa	414.68	A Gas Saturation Apparatus for Very Low Vapor or Sublimation Pressure Measurements (10-3 Pa): Vapor-Liquid Equilibria of n-Alkanes (n-C10, n-C24, n-C28)
P_vap	0.01	kPa	417.75	A Gas Saturation Apparatus for Very Low Vapor or Sublimation Pressure Measurements (10-3 Pa): Vapor-Liquid Equilibria of n-Alkanes (n-C10, n-C24, n-C28)
Δ_fusS	[97.42; 253.90]	J/mol×K	[321.30; 324.10]
Δ_fusS	97.42	J/mol×K	321.30	NIST
Δ_fusS	253.90	J/mol×K	322.00	NIST
Δ_fusS	169.37	J/mol×K	324.10	NIST
γ	[0.03; 0.03]	N/m	[333.15; 343.15]
γ	0.03	N/m	333.15	Surface tension of decane binary and ternary mixtures with eicosane, docosane and tetracosane
γ	0.03	N/m	343.15	Surface tension of decane binary and ternary mixtures with eicosane, docosane and tetracosane

Pressure Dependent Properties

Property	Value	Unit	Pressure (kPa)	Source
T_boilr	504.50	K	1.30	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
C_p,gas	[514.61; 1257.51]	J/mol×K	[273.00; 1000.00]	Joback Predicted correlation
Equation			Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is C_p,gas in J/mol×K, T in K
Coefficient A			-1.89280e+01
Coefficient B			2.28384e+00
Coefficient C			-1.28180e-03
Coefficient D			2.74400e-07
Coefficient E			0.00000e+00
Temperature range, min.			273.00
Temperature range, max.			1000.00

C_p,gas	514.61	J/mol×K	273.00	Calculated Property
C_p,gas	640.77	J/mol×K	353.78	Calculated Property
C_p,gas	753.99	J/mol×K	434.56	Calculated Property
C_p,gas	855.16	J/mol×K	515.33	Calculated Property
C_p,gas	945.13	J/mol×K	596.11	Calculated Property
C_p,gas	1024.79	J/mol×K	676.89	Calculated Property
C_p,gas	1094.98	J/mol×K	757.67	Calculated Property
C_p,gas	1156.59	J/mol×K	838.44	Calculated Property
C_p,gas	1210.48	J/mol×K	919.22	Calculated Property
C_p,gas	1257.51	J/mol×K	1000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
η	[0.0052186; 0.0001833]	Pa×s	[323.82; 560.14]	Joback Predicted correlation
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K
Coefficient A			-1.31930e+01
Coefficient B			2.57028e+03
Coefficient C			0.00000e+00
Coefficient D			0.00000e+00
Coefficient E			0.00000e+00
Temperature range, min.			323.82
Temperature range, max.			560.14

η	0.0052186	Pa×s	323.82	Calculated Property
η	0.0028773	Pa×s	350.07	Calculated Property
η	0.0017239	Pa×s	376.33	Calculated Property
η	0.0011042	Pa×s	402.59	Calculated Property
η	0.0007469	Pa×s	428.85	Calculated Property
η	0.0005286	Pa×s	455.11	Calculated Property
η	0.0003884	Pa×s	481.37	Calculated Property
η	0.0002947	Pa×s	507.62	Calculated Property
η	0.0002297	Pa×s	533.88	Calculated Property
η	0.0001833	Pa×s	560.14	Calculated Property

Property	Value	Unit	Temperature (K)	Source
P_vap	[0.06; 101.11]	kPa	[448.15; 664.15]	KDB Vapor Pressure Data
Equation			ln(Y) = A + B/T + C·ln(T) + D·T² + E/T² Y is P_vap in kPa, T in K
Coefficient A			3.17065e+02
Coefficient B			-2.83729e+04
Coefficient C			-4.24944e+01
Coefficient D			1.45601e-05
Coefficient E			0.00000e+00
Temperature range, min.			448.15
Temperature range, max.			664.15

P_vap	0.06	kPa	448.15	Calculated Property
P_vap	0.24	kPa	472.15	Calculated Property
P_vap	0.74	kPa	496.15	Calculated Property
P_vap	2.00	kPa	520.15	Calculated Property
P_vap	4.72	kPa	544.15	Calculated Property
P_vap	10.07	kPa	568.15	Calculated Property
P_vap	19.71	kPa	592.15	Calculated Property
P_vap	35.92	kPa	616.15	Calculated Property
P_vap	61.73	kPa	640.15	Calculated Property
P_vap	101.11	kPa	664.15	Calculated Property
P_vap	[0.13; 102.08]	kPa	[457.00; 659.60]	NIST
Equation			ln(Y) = A + B/(T + C) Y is P_vap in kPa, T in K
Coefficient A			1.78181e+01
Coefficient B			-7.97448e+03
Coefficient C			-5.51210e+01
Reference			Stull, 1947
Temperature range, min.			457.00
Temperature range, max.			659.60

P_vap	0.13	kPa	457.00	Calculated Property
P_vap	0.38	kPa	479.51	Calculated Property
P_vap	0.97	kPa	502.02	Calculated Property
P_vap	2.29	kPa	524.53	Calculated Property
P_vap	4.99	kPa	547.04	Calculated Property
P_vap	10.14	kPa	569.56	Calculated Property
P_vap	19.42	kPa	592.07	Calculated Property
P_vap	35.31	kPa	614.58	Calculated Property
P_vap	61.28	kPa	637.09	Calculated Property
P_vap	102.08	kPa	659.60	Calculated Property

Similar Compounds

Find more compounds similar to Tetracosane.

Mixtures

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Chemical Properties of Tetracosane (CAS 646-31-1)