1 thought on “How can the gold necklace turn black?”
Raymond
The gold necklace is actually prone to discoloration after wearing it for a long time. I believe that friends who have worn the gold necklace should know that once the necklace changes color, it will look very texture. The reason. Why does the gold necklace change color? . The surface of the gold jewelry becomes red has no 100%purity gold in the world. There will always be other substances in the jewelry. When gold jewelry is in contact with acidic substances, red spots may be produced; it may become red for a long time in a sulfur -containing environment. This is caused by other substances in the gold jewelry. . The surface of the gold jewelry becomes white The gold jewelry turning white is usually caused by a chemical reaction with the tribute. Daily daily necessities often contain mercury in cosmetics commonly used in women. When gold is in contact with these substances, golden mercury can be produced, making the surface of gold be white and crispy. In addition, there is also a situation that will cause gold ornaments to turn white. When gold jewelry and white jewelry (such as silver, platinum, etc.) are worn together, the friction between the two will make the contact site of the gold jewelry and other jewelry turned white and leave a scarring marks. . Gold jewelry becomes black This skin care products contain trace mercury, cosmetics often contain lead elements, hair dye often contains trace lead, and gold is easy to turn black when encountering lead. Therefore, when dyeing and using cosmetics, try not to bring gold jewelry. Therefore, it is best not to wear gold jewelry when using cosmetics or hair dyeing. In addition, the welding of gold often becomes black. This is mainly because different manufacturers use different welding medicines when welding. Black, this is why some gold jewelry is easy to change color in summer.
The gold necklace is actually prone to discoloration after wearing it for a long time. I believe that friends who have worn the gold necklace should know that once the necklace changes color, it will look very texture. The reason.
Why does the gold necklace change color?
. The surface of the gold jewelry becomes red
has no 100%purity gold in the world. There will always be other substances in the jewelry. When gold jewelry is in contact with acidic substances, red spots may be produced; it may become red for a long time in a sulfur -containing environment. This is caused by other substances in the gold jewelry.
. The surface of the gold jewelry becomes white
The gold jewelry turning white is usually caused by a chemical reaction with the tribute. Daily daily necessities often contain mercury in cosmetics commonly used in women. When gold is in contact with these substances, golden mercury can be produced, making the surface of gold be white and crispy. In addition, there is also a situation that will cause gold ornaments to turn white. When gold jewelry and white jewelry (such as silver, platinum, etc.) are worn together, the friction between the two will make the contact site of the gold jewelry and other jewelry turned white and leave a scarring marks.
. Gold jewelry becomes black
This skin care products contain trace mercury, cosmetics often contain lead elements, hair dye often contains trace lead, and gold is easy to turn black when encountering lead. Therefore, when dyeing and using cosmetics, try not to bring gold jewelry. Therefore, it is best not to wear gold jewelry when using cosmetics or hair dyeing. In addition, the welding of gold often becomes black. This is mainly because different manufacturers use different welding medicines when welding. Black, this is why some gold jewelry is easy to change color in summer.