K2S2O7
K2S2O7, also known as potassium pyrosulfate, is a chemical compound with the formula K2S2O7. It is a white, crystalline solid that is soluble in water. The compound is composed of potassium ions (K+), sulfur ions (S2O7^2-), and oxygen atoms. It is often used as a strong oxidizing agent in various chemical reactions. K2S2O7 is typically prepared by the reaction of sulfuric acid with potassium hydroxide. It is used in the synthesis of other sulfur-containing compounds and as a reagent in analytical chemistry. The compound is also used in the production of certain dyes and in the treatment of certain types of cancer. However, it should be handled with care due to its oxidizing properties.