Thermodynamic study of 9-anthracenecarboxylic acid
Ribeiro da Silva, M. A. V.[Manuel A. V.], Santos, A. F. L. O. M.[Ana Filipa L.O.M.], Carneiro, L. P. T.[Liliana P.T.], Mendes, R. F.[Ricardo F.], Rodrigues, A. S. M. C.[Ana Sofia M.C.], Ferreira, P. J. O.[Paulo J.O.], Ramos, R. M. C.[Rui M.C.]
The standard massic energy of combustion, in oxygen, of the crystalline 9-anthracenecarboxylic acid was measured, at T = 298.15 K, by static-bomb combustion calorimetry, from which the standard molar enthalpy of formation, in the condensed phase, was calculated. The standard molar enthalpy of sublimation of this acid, at T = 298.15 K, was determined from the temperature vapour pressure dependence, obtained by the Knudsen mass-loss effusion method. From the data presented above, the standard molar enthalpy of formation, in the gaseous phase, at T = 298.15 K, was derived. The experimental result is interpreted in terms of enthalpic increments, molecular structure and compared with structurally similar compounds.
Compounds
#
Formula
Name
1
CO2
carbon dioxide
2
H2O
water
3
O2
oxygen
4
C15H10O2
9-anthracenecarboxylic acid
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.
Type
Compound-#
Property
Variable
Constraint
Phase
Method
#Points
POMD
4
Vapor or sublimation pressure, kPa ; Crystal
Temperature, K; Crystal
Crystal
Gas
Calculated from knudsen effusion weight loss
32
RXND
4
1
2
3
Specific internal energy of reaction at constant volume, J/g