3 thoughts on “What does PD thousands of gold mean?”

  1. Meaning: 意思 99.9%
    PD refers to the gold, a member of the platinum, the element symbol PD, the appearance is similar to the platinum, the silver -white metal luster, the color is clear. The gravity is 12, which is lighter than platinum, and strong ductility. 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 hydrochloric acid, but soluble in nitric acid and king water, which is not prone to oxidation and losing luster in normal conditions.
    (Palladium): Elemental symbol PD, is one of the platinum elements. In 1803, it was discovered by British Golden Golden Golden Scholars Vallaston. It is similar to platinum and has excellent characteristics. Under normal conditions, it will not oxidize and lose luster in the air. It is an extremely rare precious metal resource.
    In the classification of minerals, the platinum elements are naturally platinum, including the natural element minerals of 铱, 铑, 钯, and platinum. They exist in the same phenomenon of the same phenomenon in each other, thereby forming a series of types of quality of the same element. The metals meltd by the platinum elements minerals include crickets, 铑, 铱, platinum, and so on.
    The expansion information
    The color of gold is very similar to platinum. Both sperm belonging to white colors If it is not an expert, it is difficult to identify. Almost, the current price on the market is generally very expensive.
    The prices of today's gold and platinum are comparable. It was not valuable for platinum.事 事 钯 is also known as the 950, 990, and 999 gold jewelry. Their gold content is 95%, 99%, and 99.9%, respectively. Their identification should be PD950, PD990, and PD999.
    The platinum is the rare precious metal in the world. Its price is more expensive than gold. Its color presentation is that silver white is consistent with the color of gold and silver jewelry. Platinum is also called platinum, but in most cases, everyone will be called platinum.
    Platinum jewelry is like 900, 950, 990, 999 gold jewelry, and their gold content is 90%, 95%, 99%, 99.9%.
    The hard gold is called three D hard gold. Its style is relatively new and stylish, and it is very refined in the workmanship. Its material is harder than ordinary gold Hard gold has more three -dimensional sense that belongs to gold. Its gold content is gold jewelry of foot gold and foot gold 999.
    Reference information Source: Baidu Encyclopedia-钯

  2. 1. Gold can be divided into foot gold, and thousands of foot gold
    foot gold and thousands of gold represent the purity of gold
    千 一 一 is the highest purity (generally there are marks such as 999 9999) r
    The tags of platinum are PT, but PD is gold, which is cheaper than platinum
    , such as PT950, the front PT indicates that it is made of platinum. The platinum is 990, which improves the purity

    . The following is more detailed!
    Humans already know gold as early as 6000 years ago and use gold as decorations. In today's international and domestic markets, gold jewelry in the international and domestic markets mainly includes pure gold, K gold, gold plating, gold -packed, imitation gold and color -changing gold and other products.

    The pure gold jewelry is made of pure gold. As the saying goes, "Gold has no redness", that is, the content of pure gold is less than 100 %. In fact, the gold content of 99 % and 99.9 % is called pure gold products. This pure gold jewelry texture is soft, colorful, and never color. But it is easy to deform, easy to wear, and cannot inlay various exquisite gems.

    k gold is a small amount of silver, copper, zinc and other metals in gold to enhance the strength and toughness of gold. In order to represent the gold content in K gold, K value is often used. The gold content of 1K is about 4.166 %. The gold content of 24K is about 99.99 %, so it is pure gold. Materials used for gold jewelry are generally 22K (the gold content is about 91.65 %), 20K (gold content is about 83.32 %), 18K (the gold content is about 74.98 %), and 14K (about 58.2 %). The style of K gold jewelery is easy to refurbish, which can inlay various exquisite patterns in various diamonds, green, pearls, treasures, and carvings. The diamond ring inlaid with 18K gold is used. The golden pen tip reads "14K" or "14", which means that this golden pen tip is 14K gold.

    The gold -plated jewelry is plated on the surface of jewelry made of copper, silver or alloy, a layer of 24K gold, and its appearance is the same as pure gold jewelry. But the plated metal is not durable, and it will be worn after long wearing.

    This gold jewelery is wrapped in gold foil on the surface of jewelry made of aluminum, zinc, and lead alloys, and then heated, and the gold foil is firmly pressed on the product with tools. The texture of the gold jewelry is harder than the pure gold jewelry, it is not easy to deform, and the abrasion resistance is strong. On the surface, it is comparable to the jewelry of 24K gold.

    It -made gold jewelry is a special plating process, which is made of approximate K gold jewelry. This kind of jewelry is made of copper, zinc, or aluminum metal as raw materials to make semi -finished products, and then put into a special plating solution. After treatment, a layer of red and yellow -like plating like gold is plated on the surface. Although this jewelry does not contain a little gold, it looks like a pure gold product. At present, there are many exquisite imitation gold jewelry at home and abroad instead of pure gold jewelry for decorations.

    The color -changing gold jewelry is a novel jewelery made of K gold materials after specially processed. If the drill atom is injected into the K gold surface, a beautiful blue can be presented; plating a very thin metal particles on the surface of the K gold can show black. Japan also developed a glorious purple alloy jewelry with a gold content of 78 % and 22 % aluminum content. Now, red, yellow, white, purple and other colors have entered the K gold family. At present, this magical and changeable color -changing golden Shoupei has become popular at home and abroad, and it is quite young

    . Gold identification method:
    1. The identification method is to burn with fire (best It is a tool commonly used by Master Golden Master-the musket). The results can be seen in 1--- 2 seconds. After burning, the golden yellow person is real gold.
    . The saying goes "real gold is not afraid of suffering and fire", the original intention is whether this color change is changed.
    2. The method is to see the mark, in the ring finger circle. All are pure gold jewelry. If the mark is 18K, G18K, and 750 is 18K gold (1K = 4.166, 18K is 75%gold).

  3. PD refers to the gold, a member of the platinum, the element symbol PD, the appearance is similar to the platinum, the silver -white metal luster, and the color is clear. The gravity is 12, which is lighter than platinum, and strong ductility. 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 hydrochloric acid, but soluble in nitric acid and king water, which is not prone to oxidation and losing luster in normal conditions.
    (Palladium): Elemental symbol PD, is one of the platinum elements. In 1803, it was discovered by British Golden Golden Golden Scholars Vallaston. It is similar to platinum and has excellent characteristics. Under normal conditions, it will not oxidize and lose luster in the air. It is an extremely rare precious metal resource.
    In the classification of minerals, the platinum elements are naturally platinum, including the natural element minerals of 铱, 铑, 钯, and platinum. They exist in the same phenomenon of the same phenomenon in each other, thereby forming a series of types of quality of the same element. The metals meltd by the platinum elements minerals include crickets, 铑, 铱, platinum, and so on.
    Blatin metal -the "noble home" in the metal
    钯 was first separated from British chemist and physicist Vallaston in 1803, so Began to have your own name Palladium. The name comes from the newly discovered Sun-inrada, the newly discovered in 1802. It was the planet in commemorating the goddess of wisdom and craftsmanship in ancient Greek mythology.
    The density of 密 密 1 cubic centimeter is 12.023 grams. Under normal conditions, it is not easy to oxidize and loses luster. The temperature will generate oxides at about 400 ° C. It is cheaper than platinum. The jewelry industry is used alone, or it is composed of gold, silver, and platinum alloy. Sometimes I participate in some crickets to increase their hardness. Common gold on the market, k k 市场, platinum, and 钯 alloy. The specifications are labeling with PD1000, PD950, PD900. [1]
    The gold is one of the rare precious metals in the world. In 2008, the total output of the world's world was similar to that of platinum, which was less than 8%of the total gold output. (Data source: 2009 Platinum Nian Jian) ​​钯 钯 ((, platinum, gold, and silver are the trading varieties of international precious metals and futures, and historically, it was once higher than platinum prices.再 再 is an unable to regenerate scarce resource. With the continuous mining and market demand, its future value will gradually be reflected.

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