Enthalpies of combustion of di-n-propylamine, diisopropylamine, diisobutylamine, and di-sec-butylamine

Abstract The standard ( p o =0.1 MPa) molar enthalpies of formation Δ f H m o at the temperature 298.15 K were determined from the standard molar enthalpies of combustion measured by static-bomb calorimetry for the liquids: di- n -propylamine, diisopropylamine, diisobutylamine, and di- sec -butylamine. The standard molar enthalpies of formation in the gaseous state were derived using both literature and estimated values for the enthalpies of vaporization [Table] The enthalpies of formation of aliphatic amines in the gaseous state are reviewed using a group-additivity scheme.