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.

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Advantages of palladium:

Palladium is relatively stable and can resist acid corrosion. Palladium has almost no impurities and its purity is extremely high. The purity of palladium is also very suitable for skin, because unlike other metals, palladium does not have allergic reactions to skin. The international jewelry industry began to process palladium and platinum for jewelry and decorative works of art, and gradually formed a fashion trend.

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.

Baidu encyclopedia-palladium

Baidu Encyclopedia-Palladium (Silver-white Transition Metal)