Palladium: element symbol Pd, 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 properties. It will not oxidize or lose its luster in the air under normal conditions. It is an extremely precious precious metal resource.
Platinum Group Metals—The “Aristocratic House” among Metals Palladium is one of the platinum group metals.
Platinum group metals include ruthenium, rhodium, palladium, platinum, etc.
Most of them are more expensive than gold and are typical "noble houses" among metals.
What are the characteristics of palladium? Palladium is a member of the platinum family, with the element symbol Pd. Its appearance is similar to that of platinum, with a silver-white metallic luster and bright color.
The specific gravity is 12, which is lighter than platinum and has strong ductility.
The melting point is 1555°C and the hardness is 4-4.5, slightly harder than platinum.
The chemical properties are relatively stable, insoluble in organic acids, cold sulfuric acid or hydrochloric acid, but soluble in nitric acid and aqua regia, and not easy to oxidize and lose luster under normal conditions.
Why is palladium suitable for jewelry? Palladium has excellent physical and chemical properties. It is resistant to high temperatures, corrosion, wear and tear, and has strong stretchability. It can be substituted with platinum in terms of purity, rarity and durability.
, whether it is used to make jewelry alone or to inlay gemstones, it is 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. Its content in the earth's crust is about one part per 100 million, which is much rarer than gold.
Only a few countries in the world, such as Russia and South Africa, produce it, and the total annual output is less than 5‰ of gold.
Rare than platinum.
Palladium is extremely tough. Jewelry made of palladium not only has the natural and charming brilliance of platinum, but also can withstand the tempering of time and remain as new for a long time.
Palladium has almost no impurities, is extremely pure, and shines white.
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. White gold (White gold), also known as K platinum, is an alloy made by fusing gold with other white metals.
Its code name is WG (White Gold), which means white gold.
White K gold jewelry is often represented by "18K white gold" or "14K white gold".
Platinum (Platnum) symbol Pt, silver gray-white, specific gravity 21.35, melting point 170°C, Mohs hardness 4-4.5 degrees, stable chemical properties, not subject to acid and alkali corrosion except aqua regia.
Pure platinum is relatively soft, and adding metals such as ruthenium, rhodium, and palladium will increase its hardness.
Platinum alloy refers to alloys of platinum and other metals, such as palladium, rhodium, yttrium, ruthenium, cobalt, copper, etc.
Although pure platinum is harder than gold, it is not sufficient for setting and must be alloyed with other metals before it can be used to make jewelry.
Internationally, the mark of platinum jewelry is Pt, Plat or Platinum, and is represented by the number of thousandths of purity. For example, Pt900 means the purity is 900‰.
Commonly used platinum jewelry markings are Pt1000, Pt950, Pt900, and Pt850.
Palladium is a member of the platinum family, silvery white, symbol Pd, lighter than platinum, more malleable, slightly harder than platinum, insoluble in organic acids, cold sulfuric acid or hydrochloric acid, but soluble in nitric acid and aqua regia.
It is not easy to oxidize and lose luster under normal conditions.
In the jewelry industry, it is used alone or as a component of gold, silver, and platinum alloys to increase their hardness.
Gold, palladium, K gold and alloys of platinum and palladium are common on the market.