Chemical Properties of Pyromellitic dianhydride (CAS 89-32-7)

InChI

InChI=1S/C10H2O6/c11-7-3-1-4-6(10(14)16-8(4)12)2-5(3)9(13)15-7/h1-2H

InChI Key

ANSXAPJVJOKRDJ-UHFFFAOYSA-N

Formula

C10H2O6

SMILES

O=c1oc(=O)c2cc3c(=O)oc(=O)c3cc12

Molecular Weight¹

218.12

CAS

89-32-7

Other Names

• 1,2,4,5-Benzenetetracarboxylic anhydride
• 1,2,4,5-Benzenetetracarboxylic dianhydride
• 1,2,4,5-benzenetetracarboxylic 1,2:4,5-dianhydride
• 1H,3H-benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone
• Benzene-1,2:4,5-tetracarboxylic dianhydride
• NSC 4798
• Pyromellitic 1,2:4,5-dianhydride
• Pyromellitic acid anhydride
• Pyromellitic acid dianhydride
• pyromellitic anhydride

• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• C_p,solid : Solid phase heat capacity (J/mol×K).
• Δ_fH°_solid : Solid phase enthalpy of formation 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 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).
• 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_triple : Triple Point Temperature (K).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔcH°solid	[-3312.70; -3267.00]	kJ/mol
ΔcH°solid	-3267.00 ± 1.00	kJ/mol	NIST
ΔcH°solid	-3312.70 ± 9.10	kJ/mol	NIST
ΔfH°solid	[-1047.00; -907.34]	kJ/mol
ΔfH°solid	-953.50	kJ/mol	NIST
ΔfH°solid	-1047.00	kJ/mol	NIST
ΔfH°solid	-907.34	kJ/mol	NIST
ΔsubH°	[83.39; 122.30]	kJ/mol
ΔsubH°	122.30 ± 2.40	kJ/mol	NIST
ΔsubH°	83.39	kJ/mol	NIST
IE	12.19 ± 0.02	eV	NIST
log10WS	-9.07		Crippen Calculated Property
logPoct/wat	-0.505		Crippen Calculated Property
McVol	124.300	ml/mol	McGowan Calculated Property
S°solid,1 bar	[236.50; 242.10]	J/mol×K
S°solid,1 bar	237.10	J/mol×K	NIST
S°solid,1 bar	236.50	J/mol×K	NIST
S°solid,1 bar	242.10	J/mol×K	NIST
Tboil	671.70	K	NIST
Ttriple	558.90 ± 2.00	K	NIST

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,solid	[215.70; 231.40]	J/mol×K	[298.15; 300.00]
Cp,solid	215.70	J/mol×K	298.15	NIST
Cp,solid	231.40	J/mol×K	298.15	NIST
Cp,solid	219.90	J/mol×K	300.00	NIST
Cp,solid	219.90	J/mol×K	300.00	NIST
ΔfusH	[15.82; 32.39]	kJ/mol	[557.15; 558.90]
ΔfusH	15.83	kJ/mol	557.15	NIST
ΔfusH	15.82	kJ/mol	557.20	NIST
ΔfusH	32.39	kJ/mol	558.90	NIST
ΔsubH	100.40	kJ/mol	559.00	NIST
ΔvapH	79.60	kJ/mol	653.00	NIST
ΔfusS	28.40	J/mol×K	557.15	NIST

Similar Compounds

Find more compounds similar to Pyromellitic dianhydride.

Mixtures

• Carbon dioxide + Acetone + Pyromellitic dianhydride

Sources

• Crippen Method
• Crippen Method
• Measurement and prediction of the solubilities of aromatic polyimide monomers in supercritical carbon dioxide with acetone
• McGowan Method
• NIST Webbook

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