Sulfur dioxide (SO 2) is a pungent, toxic gas that is the primary product of burning elemental sulfur. It exists widely in nature, mostly from volcanic activity and burning fossil fuels. It is found ...

IT has been known for some time that inorganic nitrates catalyse the formation of polysulphones from liquid mixtures of olefines and sulphur dioxide 1, but the mechanism of catalysis has never been ...