S2O5Cl2

S2O5Cl2, also known as disulfuryl dichloride or sulfuryl chloride dimer, is a chemical compound with the formula S2O5Cl2. It is the dimer of sulfuryl chloride (SO2Cl2). This compound is an inorganic substance that typically exists as a colorless liquid. It is highly reactive and hydrolyzes readily in the presence of moisture, producing sulfuric acid and hydrochloric acid.

Disulfuryl dichloride is synthesized through the reaction of sulfur trioxide with sulfur dichloride. Its primary use is as a chlorinating and sulfonylating agent in organic chemistry. It can be employed in the synthesis of various organic compounds, including sulfonyl chlorides, which are important intermediates in the production of pharmaceuticals, dyes, and pesticides. Due to its corrosive nature and reactivity with water, disulfuryl dichloride must be handled with extreme care in a well-ventilated area and with appropriate protective equipment. Storage typically involves inert containers to prevent decomposition.