1. Silver turns black because it can react with sulfide to produce black silver sulfide. If there is sulfide-containing gas in the air, or silver ornaments come into contact with sulfide released by sweat, excrement and egg products for a long time, it will turn black after a period of time, giving people the illusion of "sucking" human wet poison, which is a normal natural phenomenon.

2, some people sweat more, and the sulfur content in sweat is relatively high, wearing a silver bracelet will be easier to turn black. Others secrete a lot of oil, and wearing a silver bracelet will become brighter and brighter.

3. If the silver bracelet suddenly turns black, it may be that it comes into contact with sulfur-containing or acidic items during wearing, such as sulfur soap and 84. When wearing a silver bracelet, it is best not to touch cosmetics or toiletries, nor to bathe, swim or soak in hot springs.

Extended data

Precautions for wearing silver ornaments:

1. Do not wear silver ornaments when swimming or soaking in hot springs, and avoid contact with seawater (mineral water).

2, the new silver jewelry can be coated with a layer of transparent nail polish to prevent oxidation. ?

Phoenix. Com: Is it because of removing dampness and detoxifying that silver ornaments turn black?