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. Palladium is relatively stable and can resist acid corrosion. Palladium has almost no impurities and its purity is extremely high.
Metals smelted from platinum group minerals include palladium, rhodium, iridium and platinum. Palladium is a member of the platinum group, but it is different from platinum;
1, the component seal of palladium is "pd" and the component seal of platinum is "Pt";
2. The density of palladium is lower than that of platinum, which is 1 cm3, and the weight of platinum is 21.45g, while the density of palladium is12.023g, which is only 56% of the former, that is to say, the weight of palladium is only a little more than half of platinum, so the price of palladium is lower than platinum.
Extended data
Maintenance of palladium jewelry;
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.
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