Chemical Properties of Octacosane (CAS 630-02-4)

InChI

InChI=1S/C28H58/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-28H2,1-2H3

InChI Key

ZYURHZPYMFLWSH-UHFFFAOYSA-N

Formula

C28H58

SMILES

CCCCCCCCCCCCCCCCCCCCCCCCCCCC

Molecular Weight¹

394.76

CAS

630-02-4

Other Names

• n-octacosane

• ω : Acentric Factor.
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• 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_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_triple : Triple Point Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• ρ_l : Liquid Density (kg/m³).
• I_np : Non-polar retention indices.
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• γ : Surface Tension (N/m).
• T_boil : Normal Boiling Point Temperature (K).
• T_boilr : Boiling point at reduced pressure (K).
• T_c : Critical Temperature (K).
• λ_gas : Gas thermal conductivity (W/m×K).
• λ_liquid : Liquid thermal conductivity (W/m×K).
• T_fus : Normal melting (fusion) point (K).
• T_triple : Triple Point Temperature (K).
• U_Qi : UNIQUAC Qi Parameter.
• U_Ri : UNIQUAC Ri Parameter.
• V_c : Critical Volume (m³/kmol).
• V_COSTALD : COSTALD Characteristic Volume (m³/kmol).
• ω_SRK : SRK acentric factor.
• Z_c : Critical Compressibility.
• Z_ra : Rackett Parameter.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	[1.1950; 1.2375]
ω	1.1950		PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
ω	1.2375		ChemSep v8.3 pure component data Compiled value
μ	0.00	debye	ChemSep v8.3 pure component data Compiled value
ΔfG°	179.90	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfH°gas	-622.80	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfusH°	35.53	kJ/mol	Measurement of enthalpy curves of phase change materials via DSC and T-History: When are both methods needed to estimate the behaviour of the bulk material in applications?
ΔsubH°	209.00 ± 10.00	kJ/mol	NIST
ΔvapH°	[141.90; 152.40]	kJ/mol
ΔvapH°	141.90	kJ/mol	NIST
ΔvapH°	150.80 ± 0.50	kJ/mol	NIST
ΔvapH°	150.70 ± 1.70	kJ/mol	NIST
ΔvapH°	152.40 ± 2.90	kJ/mol	NIST
IE	10.16	eV	Relay (1.0) Calculated Property
log10WS	-10.85		Relay (1.0) Calculated Property
logPoct/wat	11.169		Crippen Calculated Property
McVol	405.380	ml/mol	McGowan Calculated Property
Pc	[727.51; 850.00]	kPa
Pc	727.51	kPa	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Pc	850.00	kPa	ChemSep v8.3 pure component data Compiled value
Ptriple	1.04e-07	kPa	ChemSep v8.3 pure component data Compiled value
Inp	[442.42; 461.80]
Inp	442.42		NIST
Inp	461.80		NIST
Inp	461.80		NIST
Inp	442.42		NIST
Tboil	[704.75; 704.80]	K
Tboil	704.75	K	ChemSep v8.3 pure component data Compiled value
Tboil	704.80	K	NIST
Tc	[832.00; 845.40]	K
Tc	836.00	K	Critical temperatures and pressures of C40, C44, and C60 normal alkanes measured by the pulse-heating technique
Tc	845.40	K	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Tc	832.00	K	ChemSep v8.3 pure component data Compiled value
Tfus	[331.41; 338.00]	K
Tfus	336.40	K	Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Tfus	334.55	K	ChemSep v8.3 pure component data Compiled value
Tfus	334.55	K	KDB
Tfus	334.60 ± 0.40	K	NIST
Tfus	334.60 ± 0.20	K	NIST
Tfus	Outlier 331.41 ± 0.30	K	NIST
Tfus	334.70 ± 0.30	K	NIST
Tfus	334.35 ± 0.50	K	NIST
Tfus	334.00 ± 2.00	K	NIST
Tfus	333.00 ± 2.00	K	NIST
Tfus	334.30 ± 0.40	K	NIST
Tfus	334.40 ± 0.40	K	NIST
Tfus	334.35 ± 0.20	K	NIST
Tfus	333.90 ± 0.70	K	NIST
Tfus	334.45 ± 0.20	K	NIST
Tfus	333.90 ± 1.00	K	NIST
Tfus	334.20 ± 0.60	K	NIST
Tfus	334.40 ± 0.10	K	NIST
Tfus	334.40 ± 0.60	K	NIST
Tfus	334.70 ± 1.00	K	NIST
Tfus	335.00 ± 2.00	K	NIST
Tfus	333.00 ± 3.00	K	NIST
Tfus	334.60 ± 0.80	K	NIST
Tfus	335.00 ± 3.00	K	NIST
Tfus	336.70 ± 3.00	K	NIST
Tfus	Outlier 338.00 ± 2.00	K	NIST
Tfus	334.80 ± 1.00	K	NIST
Tfus	334.00 ± 2.00	K	NIST
Tfus	334.70 ± 1.00	K	NIST
Ttriple	[330.40; 334.35]	K
Ttriple	330.40	K	Thermal conductivity of heavy, even-carbon number n-alkanes (C22 to C32)
Ttriple	334.35	K	ChemSep v8.3 pure component data Compiled value
Ttriple	333.98 ± 0.70	K	NIST
UQi	15.74		ChemSep v8.3 pure component data Compiled value
URi	19.34		ChemSep v8.3 pure component data Compiled value
Vc	[1.583; 1.630]	m3/kmol
Vc	1.583	m3/kmol	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Vc	1.630	m3/kmol	ChemSep v8.3 pure component data Compiled value
VCOSTALD	1.90	m3/kmol	Hankinson and Thomson (1979), COSTALD parameters Compiled value
ωSRK	0.85		Hankinson and Thomson (1979), COSTALD parameters Compiled value
Zc	0.2002850		ChemSep v8.3 pure component data Compiled value
Zra	[0.23; 0.23]
Zra	0.23		Hankinson and Thomson (1979), COSTALD parameters Compiled value
Zra	0.23		ChemSep v8.3 pure component data Compiled value

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[919.80; 1068.00]	J/mol×K	[340.00; 450.00]
Cp,liquid	919.80	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
Cp,liquid	933.30	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
Cp,liquid	937.00	J/mol×K	353.00	NIST
Cp,liquid	946.70	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
Cp,liquid	960.20	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
Cp,liquid	973.60	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
Cp,liquid	987.10	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
Cp,liquid	1001.00	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
Cp,liquid	1014.00	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
Cp,liquid	1027.00	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
Cp,liquid	1041.00	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
Cp,liquid	1054.00	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
Cp,liquid	1068.00	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
η	[0.0003995; 0.0018142]	Pa×s	[398.15; 573.15]
η	0.0018142	Pa×s	398.15	Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering
η	0.0013609	Pa×s	423.15	Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering
η	0.0010252	Pa×s	448.15	Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering
η	0.0008318	Pa×s	473.15	Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering
η	0.0006847	Pa×s	498.15	Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering
η	0.0005675	Pa×s	523.15	Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering
η	0.0004753	Pa×s	548.15	Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering
η	0.0003995	Pa×s	573.15	Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering
ΔfusH	[35.44; 67.38]	kJ/mol	[331.30; 334.50]
ΔfusH	35.44	kJ/mol	331.30	NIST
ΔfusH	63.00	kJ/mol	333.40	NIST
ΔfusH	67.38	kJ/mol	334.20	NIST
ΔfusH	64.64	kJ/mol	334.50	NIST
ΔfusH	64.64	kJ/mol	334.50	NIST
ΔsubH	195.80 ± 2.20	kJ/mol	326.00	NIST
ΔvapH	[98.10; 141.90]	kJ/mol	[298.00; 593.00]
ΔvapH	128.60	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
ΔvapH	141.90	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
ΔvapH	131.70	kJ/mol	345.00	NIST
ΔvapH	117.40 ± 1.20	kJ/mol	375.50	NIST
ΔvapH	135.00 ± 3.00	kJ/mol	431.50	NIST
ΔvapH	118.50	kJ/mol	435.50	NIST
ΔvapH	105.50	kJ/mol	459.50	NIST
ΔvapH	103.10 ± 3.00	kJ/mol	494.00	NIST
ΔvapH	99.27 ± 0.06	kJ/mol	510.00	NIST
ΔvapH	100.60	kJ/mol	512.50	NIST
ΔvapH	98.10	kJ/mol	512.50	NIST
ΔvapH	100.50	kJ/mol	535.50	NIST
ΔvapH	106.60	kJ/mol	593.00	NIST
Psub	[1.17e-08; 4.39e-08]	kPa	[323.05; 329.02]
Psub	1.17e-08	kPa	323.05	Vapor and Sublimation Pressures of Three Normal Alkanes: C20, C24, and C28
Psub	2.37e-08	kPa	326.15	Vapor and Sublimation Pressures of Three Normal Alkanes: C20, C24, and C28
Psub	4.39e-08	kPa	329.02	Vapor and Sublimation Pressures of Three Normal Alkanes: C20, C24, and C28
Pvap	[2.14e-06; 1.70]	kPa	[354.01; 550.62]
Pvap	2.14e-06	kPa	354.01	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)
Pvap	1.77e-05	kPa	373.92	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)
Pvap	1.80e-05	kPa	373.92	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)
Pvap	1.26e-04	kPa	393.65	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)
Pvap	1.22e-04	kPa	393.65	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)
Pvap	6.33e-04	kPa	413.50	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)
Pvap	6.51e-04	kPa	413.50	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)
Pvap	6.30e-04	kPa	413.50	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)
Pvap	2.93e-03	kPa	433.32	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)
Pvap	0.01	kPa	453.28	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)
Pvap	0.04	kPa	473.64	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)
Pvap	0.16	kPa	494.80	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)
Pvap	0.43	kPa	516.89	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)
Pvap	1.70	kPa	550.62	Vapor-Liquid Equilibria of Binary Systems with Long-Chain Organic Compounds (Fatty Alcohol, Fatty Ester, Acylglycerol, and n-Paraffin) at Subatmospheric Pressures
ΔfusS	[106.98; 193.28]	J/mol×K	[331.30; 334.50]
ΔfusS	106.98	J/mol×K	331.30	NIST
ΔfusS	193.28	J/mol×K	334.50	NIST

Pressure Dependent Properties

Property	Value	Unit	Pressure (kPa)	Source
Tboilr	551.20	K	2.00	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[599.19; 1698.71]	J/mol×K	[273.00; 1500.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,gas in J/mol×K, T in K
Coefficient A			3.35140e+02
Coefficient B			-5.05510e+02
Coefficient C			7.36024e+00
Coefficient D			2.73760e-04
Coefficient E			-9.60080e-08
Temperature range, min.			273.00
Temperature range, max.			1500.00
Cp,gas	599.19	J/mol×K	273.00	Calculated Property
Cp,gas	838.48	J/mol×K	409.33	Calculated Property
Cp,gas	1037.63	J/mol×K	545.67	Calculated Property
Cp,gas	1198.71	J/mol×K	682.00	Calculated Property
Cp,gas	1329.65	J/mol×K	818.33	Calculated Property
Cp,gas	1436.81	J/mol×K	954.67	Calculated Property
Cp,gas	1524.65	J/mol×K	1091.00	Calculated Property
Cp,gas	1596.24	J/mol×K	1227.33	Calculated Property
Cp,gas	1653.74	J/mol×K	1363.67	Calculated Property
Cp,gas	1698.71	J/mol×K	1500.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[906.93; 1363.26]	J/mol×K	[334.35; 704.75]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,liquid in J/mol×K, T in K
Coefficient A			4.94250e+02
Coefficient B			-1.31760e+02
Coefficient C			5.49824e+00
Coefficient D			3.36190e-03
Coefficient E			-1.83870e-06
Temperature range, min.			334.35
Temperature range, max.			704.75
Cp,liquid	906.93	J/mol×K	334.35	Calculated Property
Cp,liquid	963.20	J/mol×K	375.51	Calculated Property
Cp,liquid	1019.35	J/mol×K	416.66	Calculated Property
Cp,liquid	1074.93	J/mol×K	457.82	Calculated Property
Cp,liquid	1129.42	J/mol×K	498.97	Calculated Property
Cp,liquid	1182.22	J/mol×K	540.13	Calculated Property
Cp,liquid	1232.67	J/mol×K	581.28	Calculated Property
Cp,liquid	1280.10	J/mol×K	622.44	Calculated Property
Cp,liquid	1323.85	J/mol×K	663.59	Calculated Property
Cp,liquid	1363.26	J/mol×K	704.75	Calculated Property

Property	Value	Unit	Temperature (K)	Source
η	[0.0060149; 0.0000675]	Pa×s	[334.35; 832.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K
Coefficient A			-1.10670e+02
Coefficient B			6.75020e+03
Coefficient C			1.48860e+01
Coefficient D			-1.03120e-05
Coefficient E			2.00000e+00
Temperature range, min.			334.35
Temperature range, max.			832.00
η	0.0060149	Pa×s	334.35	Calculated Property
η	0.0022136	Pa×s	389.64	Calculated Property
η	0.0011517	Pa×s	444.94	Calculated Property
η	0.0007182	Pa×s	500.23	Calculated Property
η	0.0004890	Pa×s	555.53	Calculated Property
η	0.0003437	Pa×s	610.82	Calculated Property
η	0.0002409	Pa×s	666.12	Calculated Property
η	0.0001646	Pa×s	721.41	Calculated Property
η	0.0001081	Pa×s	776.71	Calculated Property
η	0.0000675	Pa×s	832.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ΔvapH	[130.32; 0.00]	kJ/mol	[334.35; 832.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A·(1 − Tr)^(B + C·Tr + D·Tr² + E·Tr³), Tr = T/Tc Y is ΔvapH in kJ/mol, T in K
Coefficient A			2.05930e+02
Coefficient B			9.07960e-01
Coefficient C			4.06100e-01
Coefficient D			-1.29800e+00
Coefficient E			4.42830e-01
Critical temperature, Tc (K)			8.32000e+02
Temperature range, min.			334.35
Temperature range, max.			832.00
ΔvapH	130.32	kJ/mol	334.35	Calculated Property
ΔvapH	119.69	kJ/mol	389.64	Calculated Property
ΔvapH	109.81	kJ/mol	444.94	Calculated Property
ΔvapH	100.60	kJ/mol	500.23	Calculated Property
ΔvapH	91.91	kJ/mol	555.53	Calculated Property
ΔvapH	83.46	kJ/mol	610.82	Calculated Property
ΔvapH	74.76	kJ/mol	666.12	Calculated Property
ΔvapH	64.81	kJ/mol	721.41	Calculated Property
ΔvapH	50.81	kJ/mol	776.71	Calculated Property
ΔvapH	0.00	kJ/mol	832.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.66]	kPa	[546.01; 741.12]	The Yaws Handbook of Vapor Pressure
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.69575e+01
Coefficient B			-7.53939e+03
Coefficient C			-9.37360e+01
Temperature range, min.			546.01
Temperature range, max.			741.12
Pvap	1.33	kPa	546.01	Calculated Property
Pvap	2.86	kPa	567.69	Calculated Property
Pvap	5.73	kPa	589.37	Calculated Property
Pvap	10.84	kPa	611.05	Calculated Property
Pvap	19.48	kPa	632.73	Calculated Property
Pvap	33.46	kPa	654.40	Calculated Property
Pvap	55.20	kPa	676.08	Calculated Property
Pvap	87.84	kPa	697.76	Calculated Property
Pvap	135.37	kPa	719.44	Calculated Property
Pvap	202.66	kPa	741.12	Calculated Property
Pvap	[2.60e-07; 1162.83]	kPa	[334.35; 832.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is Pvap in kPa, T in K
Coefficient A			1.89680e+02
Coefficient B			-2.22852e+04
Coefficient C			-2.39134e+01
Coefficient D			7.15592e-06
Coefficient E			2.00000e+00
Temperature range, min.			334.35
Temperature range, max.			832.00
Pvap	2.60e-07	kPa	334.35	Calculated Property
Pvap	1.14e-04	kPa	389.64	Calculated Property
Pvap	8.13e-03	kPa	444.94	Calculated Property
Pvap	0.18	kPa	500.23	Calculated Property
Pvap	1.90	kPa	555.53	Calculated Property
Pvap	11.78	kPa	610.82	Calculated Property
Pvap	50.78	kPa	666.12	Calculated Property
Pvap	169.67	kPa	721.41	Calculated Property
Pvap	473.32	kPa	776.71	Calculated Property
Pvap	1162.83	kPa	832.00	Calculated Property
Pvap	[0.07; 100.41]	kPa	[481.15; 704.15]	KDB Vapor Pressure Data
Equation			ln(Y) = A + B/T + C·ln(T) + D·T² + E/T² Y is Pvap in kPa, T in K
Coefficient A			3.55627e+02
Coefficient B			-3.27960e+04
Coefficient C			-4.75245e+01
Coefficient D			1.44719e-05
Coefficient E			0.00000e+00
Temperature range, min.			481.15
Temperature range, max.			704.15
Pvap	0.07	kPa	481.15	Calculated Property
Pvap	0.25	kPa	505.93	Calculated Property
Pvap	0.76	kPa	530.71	Calculated Property
Pvap	2.02	kPa	555.48	Calculated Property
Pvap	4.75	kPa	580.26	Calculated Property
Pvap	10.09	kPa	605.04	Calculated Property
Pvap	19.67	kPa	629.82	Calculated Property
Pvap	35.77	kPa	654.59	Calculated Property
Pvap	61.37	kPa	679.37	Calculated Property
Pvap	100.41	kPa	704.15	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ρl	[811.76; 265.50]	kg/m3	[273.15; 832.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A / B^(1 + (1 − T/C)^D) Y is ρl in kg/m3, T in K
Coefficient A			2.88834e+00
Coefficient B			5.54480e-02
Coefficient C			8.43000e+02
Coefficient D			1.32360e-01
Temperature range, min.			273.15
Temperature range, max.			832.00
ρl	811.76	kg/m3	273.15	Calculated Property
ρl	778.67	kg/m3	335.24	Calculated Property
ρl	743.45	kg/m3	397.34	Calculated Property
ρl	705.58	kg/m3	459.43	Calculated Property
ρl	664.35	kg/m3	521.53	Calculated Property
ρl	618.63	kg/m3	583.62	Calculated Property
ρl	566.51	kg/m3	645.72	Calculated Property
ρl	504.23	kg/m3	707.81	Calculated Property
ρl	422.25	kg/m3	769.91	Calculated Property
ρl	265.50	kg/m3	832.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
γ	[0.03; 8.29e-06]	N/m	[334.35; 829.51]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is γ in N/m, T in K
Coefficient A			-6.34550e-02
Coefficient B			-3.93150e+01
Coefficient C			-1.82850e+00
Coefficient D			-1.55290e-03
Coefficient E			5.91130e-07
Comment			Range stopped where the equation turns negative; ChemSep gives it to 832 K.
Temperature range, min.			334.35
Temperature range, max.			829.51
γ	0.03	N/m	334.35	Calculated Property
γ	0.02	N/m	389.37	Calculated Property
γ	0.02	N/m	444.39	Calculated Property
γ	0.02	N/m	499.40	Calculated Property
γ	0.01	N/m	554.42	Calculated Property
γ	0.01	N/m	609.44	Calculated Property
γ	0.01	N/m	664.46	Calculated Property
γ	0.00	N/m	719.48	Calculated Property
γ	0.00	N/m	774.49	Calculated Property
γ	8.29e-06	N/m	829.51	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λgas	[0.01; 0.06]	W/m×K	[334.35; 1000.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A·T^B / (1 + C/T + D/T²) Y is λgas in W/m×K, T in K
Coefficient A			-1.90770e+02
Coefficient B			1.07110e+00
Coefficient C			-5.35500e+09
Coefficient D			-7.03600e+10
Temperature range, min.			334.35
Temperature range, max.			1000.00
λgas	0.01	W/m×K	334.35	Calculated Property
λgas	0.01	W/m×K	408.31	Calculated Property
λgas	0.01	W/m×K	482.27	Calculated Property
λgas	0.02	W/m×K	556.23	Calculated Property
λgas	0.02	W/m×K	630.19	Calculated Property
λgas	0.03	W/m×K	704.16	Calculated Property
λgas	0.03	W/m×K	778.12	Calculated Property
λgas	0.04	W/m×K	852.08	Calculated Property
λgas	0.05	W/m×K	926.04	Calculated Property
λgas	0.06	W/m×K	1000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λliquid	[0.16; 0.09]	W/m×K	[334.35; 704.75]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is λliquid in W/m×K, T in K
Coefficient A			-9.51670e-03
Coefficient B			-8.28280e+01
Coefficient C			-8.20400e-01
Coefficient D			-2.36140e-03
Coefficient E			5.01310e-07
Temperature range, min.			334.35
Temperature range, max.			704.75
λliquid	0.16	W/m×K	334.35	Calculated Property
λliquid	0.15	W/m×K	375.51	Calculated Property
λliquid	0.14	W/m×K	416.66	Calculated Property
λliquid	0.13	W/m×K	457.82	Calculated Property
λliquid	0.12	W/m×K	498.97	Calculated Property
λliquid	0.11	W/m×K	540.13	Calculated Property
λliquid	0.11	W/m×K	581.28	Calculated Property
λliquid	0.10	W/m×K	622.44	Calculated Property
λliquid	0.09	W/m×K	663.59	Calculated Property
λliquid	0.09	W/m×K	704.75	Calculated Property

Similar Compounds

Find more compounds similar to Octacosane.

Mixtures

• Toluene + Octacosane
• Dodecane + Octacosane
• Octacosane + Ethanol
• 1-Dodecanol + Octacosane
• Octacosane + Decane
• Nonane, 2-methyl- + Octacosane
• Nonane, 4-methyl- + Octacosane
• Octacosane + Formic acid
• Octacosane + Acetic acid
• Octacosane + Ethanol + Decane

Sources

• KDB Vapor Pressure Data
• Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) ChEDL chemicals 1.5.2, from Bradley, J.-C.; Williams, A.; Lang, A. Jean-Claude Bradley Open Melting Point Dataset. Figshare, 2014 (CC0).
• Hankinson and Thomson (1979), COSTALD parameters ChEDL chemicals 1.5.2, from Hankinson, R. W.; Thomson, G. H. A New Correlation for Saturated Densities of Liquids and Their Mixtures. AIChE J. 1979, 25, 653-663.
• PSRK revision IV (2005), critical constants and acentric factors of 1000 components ChEDL chemicals 1.5.2, from Horstmann, S.; Jabłoniec, A.; Krafczyk, J.; Fischer, K.; Gmehling, J. PSRK Group Contribution Equation of State: Comprehensive Revision and Extension IV, Including Critical Constants and α-Function Parameters for 1000 Components. Fluid Phase Equilib. 2005, 227, 157-164.
• Cheméo Relay (1.0)
• ChemSep v8.3 pure component data Converted from ChemSep v8.3 pure component data, H. Kooijman and R. Taylor (2021, 2022), Artistic License 2.0; see how the values differ.
• Crippen Method
• Crippen Method
• Experimental solubility data of various n-alkane waxes: effects of alkane chain length, alkane odd versus even carbon number structures, and solvent chemistry on solubility
• Critical temperatures and pressures of C40, C44, and C60 normal alkanes measured by the pulse-heating technique
• Thermal conductivity of heavy, even-carbon number n-alkanes (C22 to C32)
• Measurement of enthalpy curves of phase change materials via DSC and T-History: When are both methods needed to estimate the behaviour of the bulk material in applications?
• 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
• Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering
• Vapor-Liquid Equilibria of Binary Systems with Long-Chain Organic Compounds (Fatty Alcohol, Fatty Ester, Acylglycerol, and n-Paraffin) at Subatmospheric Pressures
• Liquid Viscosity and Interfacial Tension of Binary and Ternary Mixtures Containing n-Octacosane by Surface Light Scattering
• Vapor Pressures and Vaporization Enthalpies of the n-Alkanes from C21 to C30 at T = 298.15 K by Correlation Gas Chromatography
• 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)
• Vapor and Sublimation Pressures of Three Normal Alkanes: C20, C24, and C28
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure
• 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

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