Effect of Water on Heterogeneous Catalytic Conversion of Dimethyl Sulfide into Methanethiol

In dry helium at 350°C and 0.1 MPa, dimethyl disulfide is catalytically converted to yield methanethiol and products of elimination such as ethylene and H₂S. Methanethiol decomposes into H₂S and dimethyl sulfide in the presence of acid catalysts, and water introduced into the system hinders this process and provides an increase in the catalyst stability.