3 thoughts on “The gold bracelet will not have colors for a year. Why is the black color with a black wrist recently?”
Allen
After wearing thousands of foot silver bracelets or foot silver bracelets, customers will become black, and the internal color of the bracelet is much dull, so it is suspected that the quality of the bracelet is suspected. In fact, the main reason for this situation is that customers use inferior hand cream or hand oil, inferior skin care products are highly lead and mercury. These two metals have great harm to silver jewelry. After contact with each other, they responded with each other to become black. Experiment: Take the bracelet directly on the back of the hand, and there will be a black on the back of the hand. This shows that the cosmetics are inferior. After washing your hands with solar, scrape your back with a bracelet, and there will be no black traces. It shows that when the cosmetics is not used, the skin will not change color, the bracelet will not change color, and the quality of the bracelet will be no problem.
Generally, nano -level metal powder will be black, such as iron powder, or oxides. Maybe it's dirty. It may also be that the bracelet is mixed with other lively metals to form the original battery, and sweat becomes an electrolyte in the positive polarity. At present, knowledge can only be answered here, not forgiveness. It is recommended to detect.
After wearing thousands of foot silver bracelets or foot silver bracelets, customers will become black, and the internal color of the bracelet is much dull, so it is suspected that the quality of the bracelet is suspected.
In fact, the main reason for this situation is that customers use inferior hand cream or hand oil, inferior skin care products are highly lead and mercury. These two metals have great harm to silver jewelry. After contact with each other, they responded with each other to become black.
Experiment: Take the bracelet directly on the back of the hand, and there will be a black on the back of the hand. This shows that the cosmetics are inferior. After washing your hands with solar, scrape your back with a bracelet, and there will be no black traces. It shows that when the cosmetics is not used, the skin will not change color, the bracelet will not change color, and the quality of the bracelet will be no problem.
Generally, nano -level metal powder will be black, such as iron powder, or oxides. Maybe it's dirty. It may also be that the bracelet is mixed with other lively metals to form the original battery, and sweat becomes an electrolyte in the positive polarity. At present, knowledge can only be answered here, not forgiveness. It is recommended to detect.
poisoned