Chemical Properties of Naphthalene, 1,8-dimethyl- (CAS 569-41-5)

InChI

InChI=1S/C12H12/c1-9-5-3-7-11-8-4-6-10(2)12(9)11/h3-8H,1-2H3

InChI Key

XAABPYINPXYOLM-UHFFFAOYSA-N

Formula

C12H12

SMILES

Cc1cccc2cccc(C)c12

Molecular Weight¹

156.22

CAS

569-41-5

Other Names

• 1,8-Dimethylnaphthalene

• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas 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_fH°_solid : Solid phase 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_vap : Vapor pressure (kPa).
• I_np : Non-polar retention indices.
• I : Polar retention indices.
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• 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.

Physical Properties

Property	Value	Unit	Source
ΔcH°solid	[-6463.20; -6463.00]	kJ/mol
ΔcH°solid	-6463.20 ± 2.60	kJ/mol	NIST
ΔcH°solid	-6463.00 ± 1.00	kJ/mol	NIST
ΔfG°	249.96	kJ/mol	Joback Calculated Property
ΔfH°gas	[108.60; 108.80]	kJ/mol
ΔfH°gas	108.80 ± 3.00	kJ/mol	NIST
ΔfH°gas	108.60	kJ/mol	NIST
ΔfH°solid	[25.90; 26.10]	kJ/mol
ΔfH°solid	26.10 ± 3.00	kJ/mol	NIST
ΔfH°solid	25.90 ± 1.20	kJ/mol	NIST
ΔfusH°	18.53	kJ/mol	Solid-L...
ΔsubH°	[82.70; 82.70]	kJ/mol
ΔsubH°	82.70 ± 0.30	kJ/mol	NIST
ΔsubH°	82.70 ± 0.30	kJ/mol	NIST
ΔsubH°	82.70	kJ/mol	NIST
ΔvapH°	47.55	kJ/mol	Joback Calculated Property
IE	[7.50; 8.30]	eV
IE	7.50	eV	NIST
IE	8.30 ± 0.05	eV	NIST
IE	7.71	eV	NIST
IE	7.64 ± 0.03	eV	NIST
log10WS	-4.23		Crippen Calculated Property
logPoct/wat	3.457		Crippen Calculated Property
McVol	136.720	ml/mol	McGowan Calculated Property
Pc	3005.73	kPa	Joback Calculated Property
Inp	[249.39; 1480.00]
Inp	1440.80		NIST
Inp	1456.80		NIST
Inp	1472.40		NIST
Inp	1449.00		NIST
Inp	1471.00		NIST
Inp	1472.70		NIST
Inp	1472.10		NIST
Inp	1459.70		NIST
Inp	1472.70		NIST
Inp	1480.00		NIST
Inp	1459.70		NIST
Inp	1472.70		NIST
Inp	1480.00		NIST
Inp	1472.70		NIST
Inp	1472.10		NIST
Inp	1450.00		NIST
Inp	1457.00		NIST
Inp	1448.00		NIST
Inp	1449.00		NIST
Inp	1457.00		NIST
Inp	1449.00		NIST
Inp	Outlier 249.39		NIST
Inp	Outlier 252.00		NIST
Inp	Outlier 249.52		NIST
Inp	Outlier 250.70		NIST
Inp	Outlier 249.52		NIST
Inp	1457.00		NIST
Inp	1472.70		NIST
Inp	1459.70		NIST
Inp	1450.00		NIST
Inp	1440.80		NIST
Inp	Outlier 250.70		NIST
I	[1989.00; 1989.00]
I	1989.00		NIST
I	1989.00		NIST
S°solid,1 bar	224.72	J/mol×K	NIST
Tboil	529.58	K	Joback Calculated Property
Tc	761.14	K	Joback Calculated Property
Tfus	335.00 ± 2.00	K	NIST
Ttriple	[336.32; 336.32]	K
Ttriple	336.32 ± 0.02	K	NIST
Ttriple	336.32 ± 0.02	K	NIST
Vc	0.521	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[296.31; 371.48]	J/mol×K	[529.58; 761.14]
T(K) Ideal gas heat capacity (J/mol×K) 300 320 340 360 600 700
Cp,gas	296.31	J/mol×K	529.58	Joback Calculated Property
Cp,gas	311.16	J/mol×K	568.17	Joback Calculated Property
Cp,gas	325.00	J/mol×K	606.77	Joback Calculated Property
Cp,gas	337.89	J/mol×K	645.36	Joback Calculated Property
Cp,gas	349.89	J/mol×K	683.95	Joback Calculated Property
Cp,gas	361.06	J/mol×K	722.55	Joback Calculated Property
Cp,gas	371.48	J/mol×K	761.14	Joback Calculated Property
Cp,solid	[241.80; 242.80]	J/mol×K	[298.15; 298.15]
Cp,solid	242.80	J/mol×K	298.15	NIST
Cp,solid	241.80	J/mol×K	298.15	NIST
η	[0.0002960; 0.0012561]	Pa×s	[309.16; 529.58]
T(K) Dynamic viscosity (Pa×s) 2.00e-4 4.00e-4 6.00e-4 8.00e-4 1.00e-3 1.20e-3 350 400 450 500
η	0.0012561	Pa×s	309.16	Joback Calculated Property
η	0.0008686	Pa×s	345.90	Joback Calculated Property
η	0.0006448	Pa×s	382.63	Joback Calculated Property
η	0.0005043	Pa×s	419.37	Joback Calculated Property
η	0.0004103	Pa×s	456.11	Joback Calculated Property
η	0.0003443	Pa×s	492.84	Joback Calculated Property
η	0.0002960	Pa×s	529.58	Joback Calculated Property
ΔfusH	[0.05; 18.53]	kJ/mol	[336.30; 338.20]
ΔfusH	15.77	kJ/mol	336.30	NIST
ΔfusH	15.77	kJ/mol	336.30	NIST
ΔfusH	0.05	kJ/mol	336.33	NIST
ΔfusH	18.53	kJ/mol	338.20	NIST
ΔsubH	[77.90; 79.60]	kJ/mol	[332.00; 336.00]
ΔsubH	77.90	kJ/mol	332.00	NIST
ΔsubH	79.60	kJ/mol	336.00	NIST
ΔvapH	[59.70; 64.80]	kJ/mol	[375.50; 375.50]
T(K) Enthalpy of vaporization at a given temperature (kJ/mol) 60 61 62 63 64 65
ΔvapH	62.80	kJ/mol	375.50	NIST
ΔvapH	64.80	kJ/mol	375.50	NIST
ΔvapH	62.20	kJ/mol	375.50	NIST
ΔvapH	60.70	kJ/mol	375.50	NIST
ΔvapH	59.70	kJ/mol	375.50	NIST
ΔfusS	46.86	J/mol×K	336.33	NIST

Pressure Dependent Properties

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.66]	kPa	[402.00; 552.34]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.58900e+01
Coefficient B			-4.93899e+03
Coefficient C			-8.54500e+01
Temperature range, min.			402.00
Temperature range, max.			552.34
T(K) Vapor pressure (kPa) 0 50 100 150 200 400 450 500 550
Pvap	1.33	kPa	402.00	Calculated Property
Pvap	2.91	kPa	418.70	Calculated Property
Pvap	5.91	kPa	435.41	Calculated Property
Pvap	11.24	kPa	452.11	Calculated Property
Pvap	20.22	kPa	468.82	Calculated Property
Pvap	34.63	kPa	485.52	Calculated Property
Pvap	56.80	kPa	502.23	Calculated Property
Pvap	89.68	kPa	518.93	Calculated Property
Pvap	136.87	kPa	535.64	Calculated Property
Pvap	202.66	kPa	552.34	Calculated Property

Similar Compounds

Find more compounds similar to Naphthalene, 1,8-dimethyl-.

Mixtures

• Naphthalene, 2,6-dimethyl- + Naphthalene, 1,8-dimethyl-

Sources

• Crippen Method
• Crippen Method
• Solid-Liquid Equilibria of Binary Mixtures of Dimethylnaphthalene Isomers
• Joback Method
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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