Platinum is a chemical element, commonly known as platinum. Its chemical symbol is Pt and its atomic order is 78. Platinum is a gray precious metal with high density, high ductility and low reactivity, belonging to transition metals. According to international regulations, only platinum can be called platinum, so the two are the same thing. This is a natural white precious metal.

PD is 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.

Focus on platinum:

There is nothing special about wearing platinum. Don't wear it when doing heavy work or physical activities, which may cause scratches.

Platinum is very stable in nature and will not deteriorate or fade due to daily wear. Its luster will never change. Even if you come into contact with common acidic substances in life, such as sulfur in hot springs, bleach, chlorine in swimming pools, or sweat, it will not be affected, so you can wear platinum jewelry at any time with great confidence.

Pay attention to palladium:

1, first of all, it is best to wear it alone to avoid mutual wear.

2, jewelry items should prevent pulling, squeezing, collision, friction, should be collected separately when not wearing.

3. Clean palladium jewelry regularly. This can ensure that jewelry presents the best luster and lasts longer.

All precious metals may leave scratches, and palladium is no exception. If scratches are visible to the naked eye, please take the palladium jewelry to a jewelry store with repair qualification for polishing.

5, should try to avoid contact with bleaching or irritating chemicals.

Extended data:

Platinum is often confused with platinum in the market. However, the English word for platinum is white gold, the main component of which is gold. After adding other metals, it is white and easy to fade. Platinum (platinum) is pure white and never fades.

Platinum = platinum ≠ platinum.

The most direct way to identify platinum is to find the unique symbol of platinum in jewelry-Pt or platinum. According to the national regulations, the back of each platinum jewelry must be engraved with the exclusive logo of platinum: Pt or Platinum (Platinum). After the logo, the purity of platinum, that is, the percentage of platinum content, such as Platinum (Platinum) or Pt950, Pt990 and Pt999, the latter two are commonly known as all platinum and thousands of gold.

Just like a platinum ID card. Only jewelry marked with a unique symbol of platinum-Pt or platinum-is a real platinum jewelry. The symbol of platinum is Au750/G750/ 18K/ Au 750, which means that 75% of the alloy material is gold, and the surface is white after adding other metals.

References:

Baidu Encyclopedia-Platinum

? Baidu encyclopedia-palladium