Chemical Properties of Naphthalic anhydride (CAS 81-84-5)

InChI

InChI=1S/C12H6O3/c13-11-8-5-1-3-7-4-2-6-9(10(7)8)12(14)15-11/h1-6H

InChI Key

GRSMWKLPSNHDHA-UHFFFAOYSA-N

Formula

C12H6O3

SMILES

O=C1OC(=O)c2cccc3cccc1c23

Molecular Weight¹

198.17

CAS

81-84-5

Other Names

• 1,8-Naphthalic anhydride
• 1H,3H-Naphtho[1,8-cd]pyran-1,3-dione
• Naphthalic acid anhydride
• Protect
• 1,8-Naphthalenedicarboxylic acid anhydride
• 1,8-Naphthalenedicarboxylic anhydride
• 1,8-Naphthalic acid anhydride
• Naphthalenedicarboxylic-1,8-anhydride
• Naphthalene-1,8-dicarboxylic acid anhydride
• 1,8-Naphthoic anhydride
• Protect (agrochemical)
• Benzo[de]isochromene-1,3-dione
• 1,8-Naphthanoic anhydride
• NSC 5747
• naphthalene-1,8-dicarboxylic anhydride

• C_p,gas : Ideal gas heat capacity (J/mol×K).
• 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_vapH° : Enthalpy of vaporization at standard conditions (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).
• 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°	-12.88	kJ/mol	Joback Calculated Property
ΔfH°gas	-200.61	kJ/mol	Joback Calculated Property
ΔfusH°	21.18	kJ/mol	Joback Calculated Property
ΔvapH°	60.77	kJ/mol	Joback Calculated Property
IE	8.92 ± 0.05	eV	NIST
log10WS	-3.73		Crippen Calculated Property
logPoct/wat	2.150		Crippen Calculated Property
McVol	134.870	ml/mol	McGowan Calculated Property
Pc	3906.25	kPa	Joback Calculated Property
Inp	[339.20; 1944.00]
Inp	1944.00		NIST
Inp	342.17		NIST
Inp	339.90		NIST
Inp	340.80		NIST
Inp	341.19		NIST
Inp	339.20		NIST
Inp	1944.00		NIST
Inp	342.17		NIST
Tboil	703.58	K	Joback Calculated Property
Tc	975.82	K	Joback Calculated Property
Tfus	545.70 ± 0.20	K	NIST
Vc	0.514	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[350.21; 410.14]	J/mol×K	[703.58; 975.82]
Cp,gas	350.21	J/mol×K	703.58	Joback Calculated Property
Cp,gas	362.66	J/mol×K	748.95	Joback Calculated Property
Cp,gas	374.06	J/mol×K	794.33	Joback Calculated Property
Cp,gas	384.47	J/mol×K	839.70	Joback Calculated Property
Cp,gas	393.92	J/mol×K	885.07	Joback Calculated Property
Cp,gas	402.46	J/mol×K	930.44	Joback Calculated Property
Cp,gas	410.14	J/mol×K	975.82	Joback Calculated Property
ΔfusH	[23.32; 23.32]	kJ/mol	[542.30; 542.30]
ΔfusH	23.32	kJ/mol	542.30	NIST
ΔfusH	23.32	kJ/mol	542.30	NIST

Similar Compounds

Find more compounds similar to Naphthalic anhydride.

Sources

• Crippen Method
• Crippen Method
• Joback Method
• McGowan Method
• NIST Webbook

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