1, the best way to maintain silver jewelry is to wear it every day, because human oil can produce a natural and moist luster. When wearing silver jewelry, don't wear other precious metal jewelry at the same time to avoid collision, deformation or wear.

2. If the silver ornaments show signs of blackening, the easiest way is to gently wash the surface with toothpaste and water, or clean the fine seams of the silver ornaments with a small jewelry brush, and then gently wipe the surface with a silver cloth, so that the original beauty can be restored immediately.

3. When the silver ornaments are black, they can be soaked in silver washing water, usually for a few seconds. Immediately after taking it out, wash it with water and then dry it with tissue paper.

4. When the silver ornaments are black, they can be washed immediately after being soaked in a certain concentration of dilute nitric acid (60% nitric acid, 40% water), and the black rust will be eliminated, and the bright luster as white as snow will be restored, but a small amount of silver will be dissolved due to chemical reaction.

If the silver ornaments are black, you can also go to the original manufacturer or jewelry processing shop to ask professionals to clean them, which will be safer and better.

6. If the silver ornaments are black, you can buy professional silver cloth. Remember not to wash the cloth no matter how black it is, because it will be invalid once washed. This kind of fast cloth can be used all the time if it is not wet.

Extended data:

Silver is not easy to react with sulfuric acid, so sulfuric acid can be used to clean the copper oxide fire marks left by silver welding annealing in jewelry manufacturing. Silver easily reacts with sulfur and hydrogen sulfide to form black silver sulfide, which is often found on tarnished silver coins or other articles. Silver can react with oxygen at high temperature to produce brown-black silver oxide (it can also react at room temperature, but the speed is very slow).

In the presence of potassium bromide (KBr), metallic silver will be eroded by strong oxidants such as potassium permanganate or potassium dichromate. These compounds are used in photography to bleach visible images and convert them into silver halide, which can be removed by sodium thiosulfate and re-developed to enhance the original images.

Baidu encyclopedia-silver