| Reference Label | Details |
|---|---|
| note unc5 | The uncertainty was not quoted and is derived by assuming +-50% uncertainty for the equilibrium constant |
| Contineanu 1982 | I. Contineanu, L. Wagner, L. Stanescu, and D. I. Marchidan, Rev. Roum. Chim. 27, 205-209 (1982) Combustion and Formation Enthalpies of o-Phenylenediamine, Urea and 2-Benzimidazolone |
| Johnson 1975 | W. H. Johnson, J. Res. Natl. Bur. Stand. 79, 487-491 (1975) The Enthalpies of Combustion and Formation of Acetanilide and Urea |