The silver in the silverware is in contact with the sulfur in the air for a long time, and the chemical reaction to form the black silver sulfide will cause the silver decoration to gradually become black, which is a normal natural phenomenon. Since we rarely pay attention to your silver ornaments and perfumes, powders, balms, soaps, etc., many friends who wear silverware will certainly have such distress, and then teach you how to make your beloved silverware Change back to the original white.
Method / step
1. Wipe with alcohol or sodium carbonate, the effect is very good.
2. Wipe with cotton and white vinegar. The black silver sulfide is dissolved in the ester acid or soaked in overnight tea. Silver jewelry once again shines.
3. Wash the surface of the ornament with a detergent, then wash it with sodium thiosulfate solution (20 g of sodium sulphate added to 100 g of water), then rinse off with water.
4. Use 1 part of tartaric acid, 1 part of alum and 10 parts of salt, mix and heat until boiling, immerse the jewelry; remove it after 10 minutes, wash it with water and dry it.
5. Wash with ammonia water, or use toothpaste to squeeze on the flannel to wipe the original luster.
6. Use toothpaste (try to choose green and transparent enamel, this toothpaste is fine, avoid scratching the silver surface), wipe the toothpaste directly on the silverware, then add a little water, pull out the foam, if there is a seam The area is brushed with a toothbrush to prevent foam from entering the seam.
7. It is also relatively simple. You don't have to do it yourself, you are going to the jewelry store for professional cleaning. But it may cost some money.
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