Chemical Properties of Benzene, 4-ethyl-1,2-dimethyl- (CAS 934-80-5)

InChI

InChI=1S/C10H14/c1-4-10-6-5-8(2)9(3)7-10/h5-7H,4H2,1-3H3

InChI Key

SBUYFICWQNHBCM-UHFFFAOYSA-N

Formula

C10H14

SMILES

CCc1ccc(C)c(C)c1

Molecular Weight¹

134.22

CAS

934-80-5

Other Names

• 1,2-DIMETHYL-4-ETHYLBENZENE
• 2-Methyl-p-ethyltoluene
• 3,4-Dimethyl-1-ethylbenzene
• 4-Ethyl-1,2-dimethylbenzene
• 4-Ethyl-o-xylene
• 4-ethyL-1,2-dimethyldibenzene
• o-Xylene, 4-ethyl-

• Δ_cH°_liquid : Standard liquid enthalpy of combustion (kJ/mol).
• 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_fH°_liquid : Liquid phase 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.
• I : 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
ΔcH°liquid	[-5850.70; -5849.90]	kJ/mol
ΔcH°liquid	-5849.90 ± 1.00	kJ/mol	NIST
ΔcH°liquid	-5850.70 ± 2.60	kJ/mol	NIST
ΔfG°	126.47	kJ/mol	Joback Calculated Property
ΔfH°gas	-36.14	kJ/mol	Joback Calculated Property
ΔfH°liquid	[-86.00; -85.30]	kJ/mol
ΔfH°liquid	-86.00 ± 1.10	kJ/mol	NIST
ΔfH°liquid	-85.30 ± 2.60	kJ/mol	NIST
ΔfusH°	14.92	kJ/mol	Joback Calculated Property
ΔvapH°	53.90	kJ/mol	NIST
log10WS	-3.23		Crippen Calculated Property
logPoct/wat	2.866		Crippen Calculated Property
McVol	128.000	ml/mol	McGowan Calculated Property
Pc	2838.39	kPa	Joback Calculated Property
Inp	[1062.00; 1104.00]
Inp	1076.50		NIST
Inp	1078.60		NIST
Inp	1062.00		NIST
Inp	1062.00		NIST
Inp	1074.00		NIST
Inp	1075.00		NIST
Inp	1074.60		NIST
Inp	1080.60		NIST
Inp	1074.70		NIST
Inp	1074.50		NIST
Inp	1075.80		NIST
Inp	1074.00		NIST
Inp	1081.00		NIST
Inp	Outlier 1100.00		NIST
Inp	1074.00		NIST
Inp	1075.00		NIST
Inp	1075.00		NIST
Inp	1075.00		NIST
Inp	1066.10		NIST
Inp	1069.50		NIST
Inp	1073.00		NIST
Inp	1064.95		NIST
Inp	1079.00		NIST
Inp	1066.00		NIST
Inp	1072.00		NIST
Inp	1083.50		NIST
Inp	1094.00		NIST
Inp	1068.00		NIST
Inp	Outlier 1104.00		NIST
Inp	1075.25		NIST
Inp	1075.00		NIST
Inp	1076.80		NIST
Inp	1092.50		NIST
Inp	1067.10		NIST
Inp	1070.30		NIST
Inp	1069.00		NIST
Inp	1069.99		NIST
Inp	1070.74		NIST
Inp	1071.00		NIST
Inp	1068.00		NIST
Inp	1085.00		NIST
Inp	1091.78		NIST
Inp	1076.00		NIST
Inp	1070.00		NIST
Inp	1077.00		NIST
Inp	1079.00		NIST
Inp	1082.00		NIST
Inp	1075.00		NIST
Inp	1088.00		NIST
Inp	1089.00		NIST
Inp	1069.00		NIST
Inp	1070.00		NIST
Inp	1091.00		NIST
Inp	1064.00		NIST
Inp	1067.00		NIST
Inp	1075.00		NIST
Inp	1088.00		NIST
Inp	1089.00		NIST
Inp	1093.00		NIST
Inp	1078.00		NIST
Inp	1085.00		NIST
Inp	1083.00		NIST
Inp	1066.00		NIST
Inp	1075.00		NIST
Inp	Outlier 1095.00		NIST
Inp	1066.00		NIST
Inp	1073.00		NIST
Inp	1074.00		NIST
Inp	1075.80		NIST
Inp	1081.60		NIST
Inp	1078.10		NIST
Inp	1080.20		NIST
Inp	1068.00		NIST
Inp	1070.00		NIST
I	[1325.00; 1379.00]
I	1325.00		NIST
I	1328.00		NIST
I	1357.20		NIST
I	1350.50		NIST
I	1332.30		NIST
I	1379.00		NIST
I	1330.00		NIST
I	1371.00		NIST
I	1364.00		NIST
I	1354.00		NIST
I	1332.00		NIST
I	1362.00		NIST
I	1355.00		NIST
I	1357.00		NIST
I	1332.00		NIST
I	1357.00		NIST
I	1355.00		NIST
I	1332.00		NIST
I	1379.00		NIST
Tboil	464.84	K	Joback Calculated Property
Tc	672.09	K	Joback Calculated Property
Tfus	206.22 ± 0.02	K	NIST
Vc	0.487	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[258.11; 333.41]	J/mol×K	[464.84; 672.09]
Cp,gas	258.11	J/mol×K	464.84	Joback Calculated Property
Cp,gas	272.33	J/mol×K	499.38	Joback Calculated Property
Cp,gas	285.86	J/mol×K	533.92	Joback Calculated Property
Cp,gas	298.71	J/mol×K	568.47	Joback Calculated Property
Cp,gas	310.90	J/mol×K	603.01	Joback Calculated Property
Cp,gas	322.46	J/mol×K	637.55	Joback Calculated Property
Cp,gas	333.41	J/mol×K	672.09	Joback Calculated Property
η	[0.0002068; 0.0017125]	Pa×s	[253.92; 464.84]
η	0.0017125	Pa×s	253.92	Joback Calculated Property
η	0.0009718	Pa×s	289.07	Joback Calculated Property
η	0.0006236	Pa×s	324.23	Joback Calculated Property
η	0.0004364	Pa×s	359.38	Joback Calculated Property
η	0.0003255	Pa×s	394.53	Joback Calculated Property
η	0.0002547	Pa×s	429.69	Joback Calculated Property
η	0.0002068	Pa×s	464.84	Joback Calculated Property
ΔvapH	48.90	kJ/mol	416.50	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.66]	kPa	[340.28; 493.15]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.46261e+01
Coefficient B			-4.06393e+03
Coefficient C			-5.68540e+01
Temperature range, min.			340.28
Temperature range, max.			493.15
Pvap	1.33	kPa	340.28	Calculated Property
Pvap	3.00	kPa	357.27	Calculated Property
Pvap	6.19	kPa	374.25	Calculated Property
Pvap	11.85	kPa	391.24	Calculated Property
Pvap	21.33	kPa	408.22	Calculated Property
Pvap	36.36	kPa	425.21	Calculated Property
Pvap	59.13	kPa	442.19	Calculated Property
Pvap	92.30	kPa	459.18	Calculated Property
Pvap	138.96	kPa	476.16	Calculated Property
Pvap	202.66	kPa	493.15	Calculated Property
Pvap	[3.49e-06; 2940.00]	kPa	[206.22; 667.00]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			1.02234e+02
Coefficient B			-9.78228e+03
Coefficient C			-1.26946e+01
Coefficient D			6.67201e-06
Temperature range, min.			206.22
Temperature range, max.			667.00
Pvap	3.49e-06	kPa	206.22	Calculated Property
Pvap	3.06e-03	kPa	257.42	Calculated Property
Pvap	0.20	kPa	308.62	Calculated Property
Pvap	3.31	kPa	359.81	Calculated Property
Pvap	23.50	kPa	411.01	Calculated Property
Pvap	99.60	kPa	462.21	Calculated Property
Pvap	302.29	kPa	513.41	Calculated Property
Pvap	735.60	kPa	564.60	Calculated Property
Pvap	1544.53	kPa	615.80	Calculated Property
Pvap	2940.00	kPa	667.00	Calculated Property

Similar Compounds

Find more compounds similar to Benzene, 4-ethyl-1,2-dimethyl-.

Sources

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

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