Palladium

What is 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. Platinum group metals-what is palladium? 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 is palladium suitable for jewelry? Palladium has excellent physical and chemical properties, high temperature resistance, corrosion resistance, abrasion resistance and strong stretchability. It can be replaced with platinum in terms of purity, rarity and durability. , Whether making jewelry alone or inlaid with gems, it can be called the most ideal material. 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. The difference between palladium and platinum, platinum, and white gold. White gold, also known as white gold, is an alloy made by fusing gold with other white metals. Its code name is wg (white gold), which means white gold. White karat gold jewelry is often expressed as '18k white gold' or '14k white gold'. Platinum (platnum) symbol pt, silver gray, specific gravity 21.35, melting point 1769°C, Mohs hardness 4-4.5 degrees, stable chemical properties, and not subject to acid and alkali corrosion except for aqua regia. Pure platinum is relatively soft, and the addition of ruthenium, rhodium, palladium and other metals will increase its hardness. Platinum alloy refers to the alloy of platinum and other metals, such as palladium, rhodium, yttrium, ruthenium, cobalt, copper and so on. Although the hardness of pure platinum is higher than that of gold, it is not enough for inlay use. It must be alloyed with other metals before it can be used to make jewelry. The mark of platinum jewelry in the world is pt, plat or platinum, and it is represented by the thousandths of purity. For example, pt900 means that the purity is 900‰. Commonly used platinum jewelry is marked with pt1000, pt950, pt900, and pt850. Palladium (palladium) A member of the platinum family, silver white, symbol pd, lighter than platinum, strong ductility, slightly harder than platinum, insoluble in organic acids, cold sulfuric acid or hydrochloric acid, but soluble in nitric acid and aqua regia. Under normal conditions, it is not easy to oxidize and lose gloss. The jewelry industry uses it alone or as a component of gold, silver, and platinum alloys to increase its hardness. Gold, palladium, karat gold, platinum and palladium alloys are common in the market. Palladium selection guide The international palladium jewelry quality stamp is'pd' or'palladium', and it is represented by a thousandths of purity. For example, pd900 means that the purity is 900‰, and the specifications of palladium jewelry are pd1000, pd950. ,pd900,pd850. Palladium Previous: Silver Next: Palladium and its characteristics