Gold, a member of the platinum, the elemental symbol PD, the appearance is similar to platinum, with silver -white metal luster and clear color.The gravity is 12, which is lighter than platinum, and is strong.The melting point is 1555 ° C, and the hardness is 4-4.5, which is slightly harder than platinum.The chemical properties are relatively stable, insoluble in organic acid, cold sulfuric acid, or hydrochloride, but soluble in nitric acid and king water, which is not prone to oxidation and losing luster in normal conditions.
The purpose of 钯 钯
Because of the unique chemical and physical characteristics of the international jewelry industry, it is difficult to make the jewelry processing process, and it is easy to splash when it is melted. Therefore, the domestic ornamental industry is rarely used to make processing jewelry.However, due to the mastery of its performance in the foreign jewelry processing industry, a small amount of processing has been started to make it as a use of jewelry and decorative arts, and it has gradually formed a fashion trend.In addition to the production of jewelry, 首 and platinum are also mainly used to produce car catalysts, electronics and dental medical appliances.Internationally not only uses to make jewelry, but also develops precious watches with 钯 钯 国际 after solving production technology.The worlds top brand watches such as Chopin, Cartier, and Parami have pushed the newly developed Golden Watches to the international luxury market, and the price is equivalent to hundreds of thousands of yuan or even millions of yuan.
What is Jinjin
Pd) -s one of the platinum metals, which is also one of the precious metals commonly used in jewelry.It is also a platinum metal with platinum (PT). It has high reflectivity of visible light, so it is white. The appearance is similar to that of rare metals and expensive prices.
The difference between 区 钯 and platinum
Although gold jewelry and platinum jewelry are similar, people have also discovered a good way to distinguish them.They seem to be the heavier than gold in the same size under the same size conditions.In terms of hardness, pure golden gold is higher than pure platinum.Therefore, the production of platinum jewelry needs to be added with other elements. The purity is lower, and the golden gold itself has high hardness. There is no need to add too much synthetic ingredients when making, and the purity is higher.Platinum jewelry is not easy to be corroded. Even under the action of strong acid and strong alkali, it is not damaged. At present, it is only Wang Shui that has corrosive effects on it.
钯 钯 钯 钯

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