Cleaning silver jewelry with ultrasonic cleaning machine will not cause any damage to silver jewelry, but it can wash away the dust in the groove of silver jewelry, but not the oxide layer on the surface of silver jewelry, so it is of little significance to clean silver jewelry with ultrasonic cleaning machine.

Silver ornaments can be wiped with alcohol-soaked rags and then washed with water.

How to clean the silver ornaments in the silver shop

The blackening of silver ornaments is a normal natural phenomenon. Because sulfur and oxides in natural media such as air have a certain corrosive effect on silver, after wearing for a period of time, some tiny spots (silver sulfide film) will appear, which will spread into pieces or even turn black for a long time. Therefore, at present, silver jewelry has some discoloration due to oxidation.

Here are some suggestions:

Strengthen maintenance knowledge: most consumers know that silver will turn black, but they don't know how to prevent it from turning black, and they don't know what to do if it turns black-this is the fundamental reason why some consumers don't want to buy silver ornaments. Therefore, teaching how to maintain and remove the oxide on the surface of silver ornaments and restore the luster of silver ornaments is the guarantee of consumers' confidence in buying. Mainly do the following work:

① Don't wear other precious metal jewelry when wearing silver jewelry to avoid collision, deformation or wear. (2) Avoid contact with water vapor and chemicals, and avoid swimming in clothes, especially in the sea.

③ Wipe it with cotton cloth after wearing it every day, and put it in a jewelry box or bag for sealed preservation.

(4) It has been oxidized to black, which can be scrubbed with a soft brush dipped in toothpaste or cleaned with hand sanitizer or detergent. If it is really impossible to clean, brush it with silver washing water and dry it with cotton cloth after washing.

Or treat the blackened silver ornaments in the following ways-

(1) Wipe with cotton dipped in white vinegar, black silver sulfide will dissolve in ester acid, and silver jewelry will glow again.

(2) Wipe with alcohol or sodium carbonate, and the effect is also very good.

(3) Wash the surface of ornaments with detergent, then with sodium thiosulfate solution (prepared by adding 20g sodium thiosulfate into 100g water), and then with clean water.

(4) mixing l parts of tartaric acid, 1 part of alum and 10 part of salt, heating to boiling, and soaking jewelry; /kloc-take it out after 0/0 minutes, wash it with clear water and dry it.

(5) Washing the mirror with ammonia water or squeezing toothpaste on the flannel can also restore the original luster.