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1. palladium, one of the rarest precious metals in the world, with element symbol Pd, is one of the platinum group elements. Palladium has high purity, similar appearance to platinum, silvery white metallic luster in natural state and never fades. Palladium has high temperature resistance, corrosion resistance, wear resistance and ductility. In terms of purity, rarity and durability, platinum can be used instead, which is an ideal material for making jewelry and inlaid gems. Palladium, together with platinum, gold and silver, is one of the international precious metal spot and futures trading varieties, which was once higher than platinum in history.
Second, palladium is chemically stable, insoluble in hydrofluoric acid, and resistant to phosphoric acid, perchloric acid, hydrochloric acid and cold sulfuric acid. Sodium hydroxide, sodium carbonate and sodium peroxide dissolved in aqua regia, hot concentrated sulfuric acid and concentrated nitric acid have corrosive effects on palladium. Palladium is not easy to oxidize and lose its luster at room temperature. When the temperature is about 400℃, oxides will be produced on the surface. When heated to 800℃ in room temperature air and humid environment, palladium oxide film will be formed on the surface of palladium.
3. Palladium has a natural pure white luster like platinum, and its color is bright. It also looks like platinum, but compared with platinum, the price of palladium is lower. Because palladium has some unique physical and chemical characteristics, it is more difficult to process jewelry than platinum, and the requirements for all links are very high.
Four, the so-called gold speculation (also known as gold investment) mainly includes: physical gold, paper gold, gold spot. Only physical gold can cash out gold bars, but the income is far less than that of stocks, so trading operations on electronic software are more common. Gold has been an investment tool for a long time. Capital: "Money is gold and silver, and gold and silver are not money" explains the essence of investment. For a long time, all resources have been concentrated in the CFD trading industry of gold and stock indexes on the platform of the global gold exchange. The monthly turnover of gold investment is as high as $30 billion, which shows that it is an independent resource and is not restricted by any country or trade market. Gold investment is the most commonly used product for investment preservation and two-way trading in the world, and speculative gold can also simulate trading. Generally, the gold code is XAUUSD or gold. In short, there is no guarantee for investment and financial management, and so is speculation in gold. Generally speaking, speculating in gold is an investment behavior, and investing in gold can usually help investors become a financial investment portfolio.