Palladium is 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.
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.
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.
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.