Enthalpy of combustion and enthalpy of vaporization of 2-ethyl-2-methoxypropane and thermodynamics of its gas-phase synthesis from (methanol + a 2-methylbutene)

Equilibrium constants the gas-phase synthesis reaction of 2-ethyl-2-methoxypropane (EMOP) from methanol and a 2-methylbutene have been found at the temperatures: 373 K, 399 K, and 413 K. The molar enthalpy of combustion was determined calorimetrically. Δ vap H o m (298.15 K) = (35.3 ± 1.5) kJ·mol −1 and Δ f H o m (298.15 K, g) = −(305.4 ± 1.8) kJ·mol −1 were found for EMOP both on the basis of the results obtained in the present work and literature values.