How to deal with silver jewelry turning black

The blackening of silver jewelry is due to the chemical reaction between silver and sulfur in the air to produce black silver sulfide. Therefore, silver jewelry should not be in contact with perfume, incense powder, balsam, sulfur soap, sweat and acid town gas. In order to restore the luster of silver jewelry, the following methods can be used: (1) Wipe with cotton dipped in white vinegar. The blackening of silver jewelry is due to the chemical reaction between silver and sulfur in the air to produce black silver sulfide. Therefore, silver jewelry should not be in contact with perfume, incense powder, balsam, sulfur soap, sweat and acid town gas. To restore the luster of silver jewelry, the following methods can be used: (1) Wipe with cotton dipped in white vinegar, the black silver sulfide will dissolve in the ester acid, and the silver jewelry will show luster again. (2) Wipe with alcohol or sodium carbonate, the effect is also very good. (3) Wash the surface of the ornaments with detergent first, then use sodium thiosulfate solution (prepared by adding 20 grams of sodium thiosulfate to 100 grams of water), and then rinse with water. (4) Mix 1 part of tartaric acid, 1 part of alum and 10 parts of table salt, mix and heat to boiling, soak the jewelry; take it out after 10 minutes, wash with water and wipe dry. (5) Washing the lens with ammonia water, or squeezing toothpaste on a flannel to wipe, can also restore its original luster. Previous: Investing in silver jewelry should choose national style Next: How to identify silver and K gold