What is mercurous iodide formula?

The formula for mercurous iodide is Hg2I2. It consists of two mercury atoms and two iodine atoms. The compound is also known as mercury(I) iodide or simply mercurous iodide. It is a bright yellow to orange-red powder that is insoluble in water but soluble in acids. Mercurous iodide is primarily used in photography and as a reagent in chemical analysis. Due to its toxic nature, mercurous iodide should be handled with care.