Chemical Properties of p-Aminobenzoic acid (CAS 150-13-0)

p-Aminobenzoic acid

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InChI
InChI=1S/C7H7NO2/c8-6-3-1-5(2-4-6)7(9)10/h1-4H,8H2,(H,9,10)
InChI Key
ALYNCZNDIQEVRV-UHFFFAOYSA-N
Formula
C7H7NO2
SMILES
Nc1ccc(C(=O)O)cc1
Molecular Weight1
137.14
CAS
150-13-0
Other Names
  • p-Aminobenzoic acid
Sources

Physical Properties

Property Value Unit Source
PAff 864.70 kJ/mol NIST
BasG 832.30 kJ/mol NIST
Δcsolid -3345.00 ± 1.50 kJ/mol NIST
Δcsolid -3342.00 ± 0.40 kJ/mol NIST
Δcsolid -3427.00 kJ/mol NIST
Δf -88.45 kJ/mol Joback Calculated Property
Δfgas -293.90 ± 4.10 kJ/mol NIST
Δfsolid -410.00 ± 1.70 kJ/mol NIST
Δfsolid -413.00 ± 0.40 kJ/mol NIST
Δfsolid -328.30 kJ/mol NIST
Δfus 18.42 kJ/mol Joback Calculated Property
Δsub 116.10 ± 3.70 kJ/mol NIST
Δsub 116.10 ± 3.70 kJ/mol NIST
Δsub 116.00 ± 3.70 kJ/mol NIST
Δvap 68.18 kJ/mol Joback Calculated Property
IE [7.80; 8.40] eV Show Hide
IE 8.30 eV NIST
IE 7.80 eV NIST
IE 8.40 ± 0.20 eV NIST
IE 8.40 eV NIST
logPoct/wat 0.97 Crippen Calculated Property
Pc 5390.71 kPa Joback Calculated Property
Tboil 609.80 K Joback Calculated Property
Tc 828.81 K Joback Calculated Property
Tfus 461.40 ± 0.60 K NIST
Vc 0.37 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 240.14 J/mol×K 609.8 Joback Calculated Property
Cp,solid 177.80 J/mol×K 298.0 NIST
Cp,solid 187.40 J/mol×K 323.0 NIST
ΔfusH [20.92; 24.50] kJ/mol [458.70; 461.40] Show Hide
Plot of Enthalpy of fusion at a given temperature.
ΔfusH 22.62 kJ/mol 458.7 NIST
ΔfusH 24.50 kJ/mol 459.2 NIST
ΔfusH 20.92 kJ/mol 461.4 NIST
ΔfusH 20.92 kJ/mol 461.4 NIST
ΔfusH 20.92 kJ/mol 461.4 NIST
ΔsubH 112.00 ± 1.00 kJ/mol 373.0 NIST
ΔsubH 114.00 ± 3.50 kJ/mol 378.0 NIST
ΔfusS 45.30 J/mol×K 461.4 NIST

Molecular Descriptors

Joback and Reid Groups
=C< (ring) 2
-OH (alcohol) 1
>C=O (nonring) 1
=CH- (ring) 4
-NH2 1

Similar Compounds

P-hydrazinobenzoic acid hydrochloride. Benzoic acid, 4-amino-, methyl ester. Benzoic acid, 4-(methylamino)-. Benzoic acid, p-amino-, sodium salt. Benzoic acid, 4-(dimethylamino)-. 4-Azidobenzoic acid. Benzoic acid, 4-amino-, ethyl ester. 4-Carboxyphenyl isothiocyanate. Methyl 4(methylamino)benzoate. Benzoic acid, 4-nitroso-, methyl ester. P-phenylazobenzoic acid. Benzoic acid, 4-amino-, isopropyl ester. ammonium benzoate. benzoate anion. Benzoic acid, silver(1+) salt.

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