CuCl, or copper(I) chloride, is a chemical compound made up of copper and chlorine. It appears as a white or yellowish solid and is often used in various chemical reactions and processes. CuCl is known for its role as a catalyst in organic synthesis and can also be found in some types of batteries. In terms of solubility, CuCl is slightly soluble in water but more soluble in organic solvents. It can be produced through the reaction of copper with chlorine gas or by heating copper(II) chloride with copper metal. This compound is important in both industrial applications and laboratory settings.