Enthalpies of combustion of the three aminophenols

摘要: Abstract The standard (po = 101.325 kPa) molar enthalpies of combustion in oxygen at 298.15 K were measured by static-bomb calorimetry and the sublimation microcalorimetry for three aminophenols. −Δ c H m o (cr)/(kJ · mol −1 ) Δ sub /(kJ 2-Aminophenol 3170.5 ± 0.5 103.8 0.9 3-Aminophenol 3167.4 0.6 104.7 1.2 4-Aminophenol 3170.9 109.1 1.4 derived formation gaseous compounds compared with values estimated assuming that each group, when substituted into benzene ring, produces a characteristic increment enthalpy formation. pattern deviations experimental from is similar to shown dihydroxybenzenes.