Palladium: element symbol pd, one of the platinum group elements. 1803 was discovered by British chemist wollaston when he was separating platinum. Similar to platinum, it has excellent characteristics, does not oxidize and lose its luster in the air under normal circumstances, and is an extremely precious precious precious metal resource.
Palladium pd990 price, platinum jewelry, now common are pt 950 (about one gram in 290 yuan), pt 990 (about one gram in 320 yuan), PT 950 is harder than PT 990, so it is recommended to buy it. Pd950 and Pd990 are commonly used in palladium jewelry. At present, the price of palladium is very chaotic, ranging from 100 yuan-all of them are sold in 200 yuan, and the national standard for palladium jewelry has not yet come out, so it is not recommended to buy it. At present, the international palladium price is 45-60 yuan/gram.
Platinum group metal-PD 990 Palladium, the "noble family" among metals, was successfully separated from crude platinum for the first time by British chemist and physicist wollaston in 1803, so Palladium began to have its own name. This name comes from the newly discovered solar asteroid Pallas-Athena in 1802. It commemorates the planet of Athena, the goddess of wisdom and craft in ancient Greek mythology.
Characteristics of pd990 palladium gold: pd990 palladium gold, member of platinum group, element symbol pd, similar in appearance to platinum, silvery white metallic luster and bright in 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. The density of pd990 palladium gold is 1 cm3,12.023g..
Advantages of pd990 palladium: pd990 palladium is one of the rare precious metals in the world. In 2008, the global output of pd990 palladium was similar to that of platinum, accounting for less than 8% of the total output of gold. (Source: Platinum and Palladium Yearbook 2009) pd990 Palladium, platinum, gold and silver are all international precious metal spot and futures trading varieties, and their prices were once higher than platinum in history. Pd990 palladium is a non-renewable scarce resource, and its future value will be gradually reflected with the deepening of mining and the improvement of market demand.
The difference between pd990 palladium and other white metals: Platinum usually refers to platinum in people's spoken language, but bad merchants maliciously confuse the concept, and many white metals become platinum. Palladium: element symbol Pd, which is one of the platinum group elements. 1803 was discovered by British chemist wollaston when he was separating platinum. Similar to platinum, it has excellent characteristics, does not oxidize and lose its luster in the air under normal circumstances, and is an extremely precious precious precious metal resource.
The price mark of palladium pd990 means that the content of metallic palladium in your jewelry is 99.0%. Palladium: element symbol Pd, which is one of the platinum group elements. It looks like platinum, and it is a silvery white metal ... rarer than platinum, but the price of palladium is much lower than platinum. So to sum up, the seller's price of palladium pd990 will go up, but the recycling will not go up, which is worthless. It is best not to buy palladium PD 990, which has no appreciation potential. Palladium is a member of the platinum group, silvery white, similar in appearance to platinum, with metallic luster. Symbol Pd, specific gravity 12, lighter than platinum, stronger in ductility and slightly harder than pd990, recovers light at 900℃. At present, palladium is cheaper than platinum, and platinum is used alone in jewelry industry or as a component of gold, silver and platinum alloys.