Rhodium was discovered in London in 1803 by William Wollaston after examining platinum ores that were bought back from Peru. He dissolved these ores in hydrochloric acid, nitric acids and ammonium chloride. It produced a deep red powder which when treated with Zinc precipitated pure Rhodium. Rhodium is highly reflective and resistant to corrosion, its major use is as a catalyst especially in the catalytic convertors of cars. Rhodium is found abundantly in ores in small quantities. It is located in Group 9 as a Transition metal. It has a melting point of 1963°c and a boiling point of 3695°c.