Rh is the chemical symbol of rhodium, which is a transition metal element in the periodic table of elements with atomic number 45. Rhodium is a rare precious metal with high corrosion resistance and thermal stability. It is often used in the fields of catalysts, electronic devices, glass manufacturing and jewelry. Rh, the chemical symbol of Rhodium, comes from its Latin name Rhodium. Rhodium is rare in nature and mainly exists in platinum ore in low content. Rhodium plays an important role in many industrial and scientific applications because of its physical and chemical properties.