Palladium: element symbol Pd, which is one of the platinum group elements. 1803 was discovered by British chemist wollaston when he was separating platinum. Similar to platinum, it has excellent characteristics, does not oxidize and lose its luster in the air under normal circumstances, and is an extremely precious precious precious metal resource.

Platinum —— "Noble House" in Metal

Palladium is one of the platinum metals. Platinum metals include ruthenium, rhodium, palladium, platinum, etc. Most of them are better than Huang Jingui, which is a typical metal "family".

What are the characteristics of palladium?

Palladium, a member of the platinum group, has the element symbol Pd, which is similar to platinum in appearance, silvery white metallic luster and bright color. The specific gravity is 12, which is lighter than platinum and has strong ductility. Melting point 1555℃, hardness 4-4.5, slightly harder than platinum. Chemical properties are relatively stable, insoluble in organic acids, cold sulfuric acid or hydrochloric acid, soluble in nitric acid and aqua regia, and it is not easy to oxidize and lose luster under normal circumstances.

Why is palladium suitable for jewelry?

Palladium has excellent physical and chemical properties, high temperature resistance, corrosion resistance, wear resistance and strong ductility. It can replace platinum in purity, rarity and durability, and is the most ideal material for making jewelry or setting gems alone.

Why is palladium the most attractive metal in jewelry?

Precious, pure and eternal!

Palladium is one of the rarest precious metals in the world, and its content in the earth's crust is about one hundred millionth, which is much rarer than gold. Only a few countries in the world, such as Russia and South Africa, produce less than 5‰ gold every year. Rarer than platinum. Palladium is extremely tough, and jewelry made of palladium not only has the natural and charming luster like platinum, but also can withstand the tempering of years and last as long as new. Palladium has almost no impurities, high purity and dazzling white light. The purity of palladium is also very suitable for skin and will not cause skin allergies.

The difference between palladium and platinum, platinum and k platinum

Platinum (platinum)

Also known as k-platinum, it is an alloy made of gold and other white metals. Its code name is WG (Platinum), which means Platinum. White gold jewelry is often expressed as "18K platinum" or "14K platinum".

Platinum (platinum)

Symbol Pt, silver gray, specific gravity 2 1.35, melting point 170℃, Mohs hardness 4-4.5 degrees, stable chemical properties, no acid and alkali corrosion except aqua regia. Pure platinum is relatively soft, and the addition of metals such as ruthenium, rhodium and palladium will increase its hardness.

Platinum-based alloy

Refers to the alloy of platinum with other metals such as palladium, rhodium, yttrium, ruthenium, cobalt and copper. Although the hardness of pure platinum is higher than that of gold, it is not enough for inlay. It must be alloyed with other metals to make jewelry. The international symbol of platinum jewelry is the words Pt, Plat or Platinum, which is expressed by a few thousandths of purity. For example, Pt900 indicates a purity of 900‰. Commonly used platinum jewelry signs are Pt 1000, Pt950, Pt900 and Pt850.

Palladium (palladium)

Platinum group element, symbol Pd, silvery white, lighter than platinum, stronger in 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 circumstances, it is not easy to oxidize and lose luster. Jewelry industry uses it alone or as a component of gold, silver and platinum alloys to increase its hardness. Common in the market are gold, palladium, alloys of gold and platinum and palladium.

Guide to the purchase of palladium

In the world, the moral imprint of palladium jewelry is "Pd" or "palladium", which is expressed by a few thousandths of purity. For example, the purity of Pd900 is 900‰, and the specifications of PD ornaments are PD 1000, PD 950, PD 900 and PD 850.