Rubidium is an alkali metal element located between potassium and cesium on the periodic table. Rubidium salts, which are comprised of rubidium cations and various anions, are compounds that are frequently encountered. Examples of rubidium salts include rubidium chloride, rubidium bromide, and rubidium iodide. These salts possess good thermal stability and conductivity and are utilized in fields such as chemistry, materials science, and biological sciences.