Palladium and its characteristics

Palladium: The element symbol Pd is one of the platinum group elements. It was discovered in 1803 by the British chemist Wollaston while separating platinum. It is similar to platinum and has excellent characteristics. It will not oxidize and lose its luster in the air under normal conditions. It is an extremely precious precious metal resource. Palladium (palladium): the element symbol pd, is one of the platinum group elements. It was discovered in 1803 by the British chemist Wollaston while separating platinum. It is similar to platinum and has excellent characteristics. It will not oxidize and lose its luster in the air under normal conditions. It is an extremely precious precious metal resource. Palladium is one of the platinum group metals, the 'house of nobility' among platinum group metals. Platinum group metals include ruthenium, rhodium, palladium, platinum and the like. Most of them are more expensive than gold and are typical'houses of nobility' among metals. What are the characteristics of palladium? Palladium, a member of the platinum family, has an element symbol of pd. It has a silver-white metallic luster and a bright color. The specific gravity is 12, which is lighter than platinum and has strong ductility. The melting point is 1555°C, the hardness is 4-4.5, which is slightly harder than platinum. The chemical property is relatively stable, insoluble in organic acid, cold sulfuric acid or hydrochloric acid, but soluble in nitric acid and aqua regia, it is not easy to oxidize and lose its luster under normal conditions. Why palladium is suitable for jewelry? Palladium has excellent physical and chemical properties, high temperature resistance, corrosion resistance, abrasion resistance and strong tolerance. Why is palladium the most attractive metal in jewelry? Precious, pure and eternal! Palladium is one of the rarest precious metals in the world. The content of the earth's crust is about one part per 100 million, which is much rarer than gold. Only a few countries such as Russia and South Africa produce production in the world, and the total annual output is less than 5‰ of gold. It is rarer than platinum. Palladium is extremely tough. Jewelry made of palladium not only has the glamorous brilliance of platinum, but also can withstand the tempering of the years, as long as new. Palladium has almost no impurities and is extremely pure, shining with white light. The purity of palladium is also very suitable for the skin and will not cause skin allergies. Previous: Palladium Next: The difference between palladium and platinum