Thermolysis of dimethyl sulfoxide

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Abstract
The thermal decomposition of dimethyl sulfoxide at small extent of reaction has been studied at temperatures of 297‐350°C and pressures of 10–400 Torr. The major products CH4, C2H4, and SO2 were shown to follow first‐order kinetics. The activation energies for production of each was about 48 kcal·mole−1. A chain mechanism has been postulated in the light of the results of isotopic substitution experiments.