HOSO2
HOSO2, also known as Hydrogenosulfite, is a chemical compound with the empirical formula HO₂S. It is a derivative of sulfur dioxide and can be considered an intermediate in various chemical reactions. While not as commonly encountered as sulfuric acid or sulfurous acid, HOSO2 plays a role in understanding redox processes involving sulfur. Its existence is often transient, forming and reacting quickly in aqueous solutions or atmospheric chemistry. The compound is characterized by the presence of a hydrogen atom bonded to an oxygen atom, which is in turn bonded to a sulfur atom that is doubly bonded to another oxygen atom. Research into HOSO2 has been driven by its potential involvement in atmospheric oxidation pathways and in the complex chemistry of sulfur compounds. Its properties and reactivity are subjects of ongoing scientific investigation, contributing to a broader understanding of chemical transformations in different environments.