When Sulphur Dioxide is Reacts with Chlorine the Product is _____
When Sulphur Dioxide reacts with Chlorine the product is SO2CI2 Or commonally known as Sulfuryl chloride.
Sulfuryl chloride is an inorganic compound with the formula SO2Cl2. At room temperature, it is a colorless liquid with a pungent odor. Sulfuryl chloride is not found in nature.
SO2Cl2 is prepared by the reaction of sulfur dioxide and chlorine in the presence of a catalyst, such as activated carbon.
SO2 + Cl2 → SO2Cl2
Sulfuryl chloride reacts with water, releasing hydrogen chloride gas and sulfuric acid:
2 H2O + SO2Cl2 → 2 HCl + H2SO4
SO2Cl2 will also decompose when heated to or above 100 °C, about 30 °C above its boiling point.
Upon standing, SO2Cl2 decomposes to sulfur dioxide and chlorine, which gives the older samples a slightly yellowish color.
Sulfuryl chloride is often used as a source of Cl2. Because it is a pourable liquid, it is considered more convenient than Cl2 to measure, store, and dispense. SO2Cl2 is widely used as a reagent in the conversion of C-H → C-Cl adjacent to activating substituents such as carbonyls and sulfoxides. It also chlorinates alkanes, alkenes, alkynes, aromatics, ethers (such as tetrahydrofuran) and epoxides. Such reactions occur under free radical conditions using an initiator such as AIBN. It can also be used to convert thiols or disulfides into their corresponding sulfenyl chlorides. SO2Cl2 can also convert alcohols to alkyl chlorides. In industry, sulfuryl chloride is most used in producing pesticides. SO2Cl2 can also be used to treat wool to prevent shrinking.