Chemical Properties of Benzene, 1,2,4,5-tetraethyl- (CAS 635-81-4)

InChI

InChI=1S/C14H22/c1-5-11-9-13(7-3)14(8-4)10-12(11)6-2/h9-10H,5-8H2,1-4H3

InChI Key

NSOYZSQQDPNCAC-UHFFFAOYSA-N

Formula

C14H22

SMILES

CCc1cc(CC)c(CC)cc1CC

Molecular Weight¹

190.32

CAS

635-81-4

Other Names

• 1,2,4,5-Tetraethylbenzene

• 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).
• 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).
• I_np : Non-polar retention indices.
• 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

Property	Value	Unit	Source
ΔfG°	150.52	kJ/mol	Joback Calculated Property
ΔfH°gas	-130.17	kJ/mol	Joback Calculated Property
ΔfusH°	24.89	kJ/mol	Joback Calculated Property
ΔvapH°	51.02	kJ/mol	Joback Calculated Property
log10WS	-4.68		Crippen Calculated Property
logPoct/wat	3.936		Crippen Calculated Property
McVol	184.360	ml/mol	McGowan Calculated Property
Pc	1930.44	kPa	Joback Calculated Property
Inp	1388.00		NIST
Tboil	561.34	K	Joback Calculated Property
Tc	758.43	K	Joback Calculated Property
Tfus	[283.00; 283.00]	K
Tfus	283.00 ± 2.00	K	NIST
Tfus	283.00 ± 2.00	K	NIST
Vc	0.712	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[443.27; 535.27]	J/mol×K	[561.34; 758.43]
Cp,gas	443.27	J/mol×K	561.34	Joback Calculated Property
Cp,gas	460.57	J/mol×K	594.19	Joback Calculated Property
Cp,gas	477.05	J/mol×K	627.04	Joback Calculated Property
Cp,gas	492.74	J/mol×K	659.89	Joback Calculated Property
Cp,gas	507.66	J/mol×K	692.73	Joback Calculated Property
Cp,gas	521.83	J/mol×K	725.58	Joback Calculated Property
Cp,gas	535.27	J/mol×K	758.43	Joback Calculated Property
η	[0.0001675; 0.0014453]	Pa×s	[311.52; 561.34]
η	0.0014453	Pa×s	311.52	Joback Calculated Property
η	0.0008167	Pa×s	353.16	Joback Calculated Property
η	0.0005205	Pa×s	394.79	Joback Calculated Property
η	0.0003615	Pa×s	436.43	Joback Calculated Property
η	0.0002676	Pa×s	478.07	Joback Calculated Property
η	0.0002078	Pa×s	519.70	Joback Calculated Property
η	0.0001675	Pa×s	561.34	Joback Calculated Property
ΔvapH	54.50	kJ/mol	429.50	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.67]	kPa	[386.16; 570.90]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.42990e+01
Coefficient B			-4.63058e+03
Coefficient C			-5.56700e+01
Temperature range, min.			386.16
Temperature range, max.			570.90
Pvap	1.33	kPa	386.16	Calculated Property
Pvap	3.03	kPa	406.69	Calculated Property
Pvap	6.27	kPa	427.21	Calculated Property
Pvap	12.04	kPa	447.74	Calculated Property
Pvap	21.67	kPa	468.27	Calculated Property
Pvap	36.89	kPa	488.79	Calculated Property
Pvap	59.83	kPa	509.32	Calculated Property
Pvap	93.08	kPa	529.85	Calculated Property
Pvap	139.58	kPa	550.37	Calculated Property
Pvap	202.67	kPa	570.90	Calculated Property

Similar Compounds

Find more compounds similar to Benzene, 1,2,4,5-tetraethyl-.

Sources

• Crippen Method
• Crippen Method
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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