Stains, silver earrings are worn for a long time, and there are stains on the surface. If not cleaned in time, the color of silver earrings will become dim; Oxidation is common in silver products. After oxidation, the color of silver earrings will gradually turn yellow and finally turn black. Vulcanization, the vulcanization reaction of silver earrings is similar to oxidation reaction, and black silver sulfide will be produced when it comes into contact with sulfide.

1. Dirty

The yellowing of silver earrings may be the cause of the stain. Wearing silver earrings for a long time will accumulate a lot of stains on the surface. If not cleaned in time, the color of silver earrings will change from white to dull.

2. Oxidation

The yellowing of silver earrings may be the cause of oxidation reaction. Oxidation is common in silver products. When silver earrings come into contact with oxygen, black silver oxide will be produced on their surfaces, which will lead to the color of silver earrings gradually turning yellow and finally turning black.

3. Vulcanization

The yellowing of silver earrings may be the cause of vulcanization reaction. The vulcanization reaction of silver earrings is similar to the oxidation reaction. After the silver earrings touch each other, a layer of black silver sulfide will be produced on the surface of the silver earrings, which will gradually darken the color of the silver earrings.