Predictions of the sulfur and carbon kinetic isotope effects in the OHÂ +Â OCS reaction

► Sulfur and carbon isotopic fractionation depends strongly on pressure. ► 34-S isotopic fractionation varies from -5‰to0‰ in troposphere and lower stratosphere. ► 13-C isotopic fractionation varies from -70‰to-40‰ in troposphere and lower stratosphere.