Is there a black circle on Daijin bracelet?

There are three reasons for golden bracelets with black wrists: 1. Long -term non -cleaning, long -term non -cleaning will cause a large amount of dust and dirt to accumulate the surface of the bracelet; Corrossed by chemical ingredients; 3. The texture is impure, and the impurities of gold bracelets are more than a long time. Long -term wearing will be oxidized and black.

1. Long -term non -clean chemical corrosion
In addition to wearing gold bracelets, if bracelets, cosmetics, detergents and other supplies contain chemical ingredients contact Wave, continue to wear bracelets and wrists black.

3, the texture of the texture
The gold bracelet wrist becomes black. It may be caused by the impure texture of the bracelet. When the impurities in the gold bracelet are more, the bracelet has been exposed to the air for a long time, which causes the impurities to oxidize the impurities. If the reaction, the bracelet will turn black.

Usually, we all know that gold bracelets are golden ingredients, and pure gold is relatively soft, so most of the bracelets on the market add some other substances, so will the gold bracelet fade? Why does the gold bracelet fade?
Whether the gold bracelet will fade
The high purity gold will not fade under normal circumstances, but it will fade in some liquid. After wearing gold jewelry for a period of time, I found that the discoloration or fading is discovered. You can check whether the color of gold jewelry is insufficient. After the discoloration or fading of gold jewelry, the waste and harmful substances in the human sweat and harmful substances will have a chemical reaction after the silver and copper in the gold jewelry. Golds also have a chemical reaction when they come into contact with certain chemicals. For example: mercury, yellow water, bromine steam, ozone, cyanide, etc. In many cases, the golden reaction causes a chemical reaction due to contact with the external material, making the golden surface with metallic luster and even fading. This is the case even what we usually call thousands of gold jewelry.
Why do gold bracelets fade?
The color loss of gold bracelets is mainly due to the production of golden mercury. In daily life, avoid contact with material containing mercury, such as cosmetics and daily chemical supplies. The main component in the gold bracelet is gold. In addition, copper, silver and other metals will be added to increase hardness, so as to make lifelike, vivid and three -dimensional jewelry, mercury has good penetration to gold, and can be with gold with gold. The formation of gold mercury alloys makes the texture of gold crispy, and it is easy to break. Therefore, it is necessary to avoid it in life. Common materials containing mercury elements such as cosmetics, daily chemical supplies, sterilizers, etc. If the gold bracelet is too long in a sulfur environment, red spots are prone to appear. In addition, red spots will also appear in contact with the contact of the gold bracelet and acid substances. This is the result of other elements in the gold bracelet. Most of the sweat is water. In addition, it also contains metabolic waste in the body, such as lactic acid, urea, etc., which will cause gold bracelets to change or fade.

Wear a metal bracelet with a dark circle in your hands. The first one may be that this gold bracelet is fake, and the second is because of sweating, and your wrist must not be particularly hygienic!