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| 925 silver | CN¥ 0.0 |
1. Reasons for Silver Jewelry Turning Black
Silver jewelry turning black is a normal natural phenomenon. Sulfur and oxides in the air and other natural media have a certain corrosive effect on silver. After wearing silver jewelry for a long time, the combination of sulfur and silver will form a layer of black elemental sulfur silver on the surface of the silver jewelry. It begins to show as some small spots, and the sulfurization phenomenon will gradually spread into patches, forming the so-called silver scale, turning into black, affecting the surface luster of the silver jewelry. People often mistakenly think it is fading.
The chemical reaction equation is: 4Ag + H2S + O2 = 2Ag2S + 2H2O
How to clean silver jewelry after sulfur treatment?
Squeeze a little toothpaste, add a little water to create rich foam, wipe with a soft cloth until shiny, and you can clean the gaps with a soft bristle toothbrush, then rinse with clean water. For complex components and chains, you can put them in the foam toothpaste water and gently massage repeatedly, then rinse with clean water. For severe sulfidation, you can use professional silver cleaning water. Although the imported silver cleaning water claims to be "no harm to silver", but after all, silver cleaning water is a chemical agent, and it is recommended not to choose to use it unless necessary.
How to maintain silver jewelry on a daily basis?
The best way to maintain silver jewelry is to wear it every day, as body oils can give it a warm and natural shine (although there are exceptions; some people's sweat contains components that can darken silver). When wearing, it's important to use a soft cloth or silver polishing cloth to wipe the surface of the silver jewelry daily to maintain its luster and prevent tarnish. When not wearing, use a soft cloth to gently wipe the surface to remove moisture and dirt, and store it in a sealed bag to prevent the silver jewelry from oxidizing and turning black when exposed to air.
Note: For more scientific knowledge about silver jewelry, please check online.
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