Chemical Properties of 4-Methyleicosane (CAS 25117-28-6)

InChI

InChI=1S/C21H44/c1-4-6-7-8-9-10-11-12-13-14-15-16-17-18-20-21(3)19-5-2/h21H,4-20H2,1-3H3

InChI Key

XLKVRUORNFWTNM-UHFFFAOYSA-N

Formula

C21H44

SMILES

CCCCCCCCCCCCCCCCC(C)CCC

Molecular Weight¹

296.57

CAS

25117-28-6

• ω : Acentric Factor.
• C_p,gas : Ideal gas 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_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).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[901.24; 1017.57]	J/mol×K	[679.64; 842.91]
Cp,gas	901.24	J/mol×K	679.64	Joback Calculated Property
Cp,gas	922.82	J/mol×K	706.85	Joback Calculated Property
Cp,gas	943.48	J/mol×K	734.06	Joback Calculated Property
Cp,gas	963.26	J/mol×K	761.28	Joback Calculated Property
Cp,gas	982.18	J/mol×K	788.49	Joback Calculated Property
Cp,gas	1000.27	J/mol×K	815.70	Joback Calculated Property
Cp,gas	1017.57	J/mol×K	842.91	Joback Calculated Property
η	[0.0000794; 0.0045387]	Pa×s	[311.43; 679.64]
η	0.0045387	Pa×s	311.43	Joback Calculated Property
η	0.0013276	Pa×s	372.80	Joback Calculated Property
η	0.0005497	Pa×s	434.17	Joback Calculated Property
η	0.0002832	Pa×s	495.53	Joback Calculated Property
η	0.0001688	Pa×s	556.90	Joback Calculated Property
η	0.0001115	Pa×s	618.27	Joback Calculated Property
η	0.0000794	Pa×s	679.64	Joback Calculated Property
ΔvapH	70.20	kJ/mol	546.00	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.65]	kPa	[471.35; 654.44]	The Yaws Handbook of Vapor Pressure
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.83383e+01
Coefficient B			-8.56957e+03
Coefficient C			3.40300e+00
Temperature range, min.			471.35
Temperature range, max.			654.44
Pvap	1.33	kPa	471.35	Calculated Property
Pvap	2.80	kPa	491.69	Calculated Property
Pvap	5.54	kPa	512.04	Calculated Property
Pvap	10.42	kPa	532.38	Calculated Property
Pvap	18.71	kPa	552.72	Calculated Property
Pvap	32.22	kPa	573.07	Calculated Property
Pvap	53.48	kPa	593.41	Calculated Property
Pvap	85.86	kPa	613.75	Calculated Property
Pvap	133.73	kPa	634.10	Calculated Property
Pvap	202.65	kPa	654.44	Calculated Property

Similar Compounds

Find more compounds similar to 4-Methyleicosane.

Sources

• Cheméo Relay (1.0)
• Crippen Method
• Crippen Method
• Joback Method
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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