Tips for Silver Jewelry-It is normal for silver jewelry to turn black when worn for a long time. You can soak it in ammonia and baking soda water or wipe it with toothpaste, then rinse it with clear water and dry it to restore luster.

If you want to make the newly bought silver jewelry brighter and avoid its discoloration, you can apply a thin layer of transparent nail polish on its surface and then apply it every ten days. If you want to remove nail polish, you can soak it in banana oil and then wash it with water.

Silver jewelry without antioxidant treatment is easy to oxidize and discolor. You can take it to a jewelry store for cleaning and polishing; If the oxidation is not serious, you can also let toothpaste rub the surface of jewelry; There is a silver polishing cloth on the market, which can easily polish silver ornaments, but only for silver ornaments with certain hardness and smoothness; If it is a soft necklace or carved jewelry, it is best to soak it in silver jewelry cleaning solution.

Avoid putting silver ornaments together with hair gel, perfume and skin care products, because this will lead to the weakening of luster; When taking a bath or washing clothes, you should remove the silver ornaments to prevent alkaline products; Prevent discoloration and deterioration due to long-term contact with sulfur and its compounds; When exercising or doing manual labor, you should try to avoid wearing jewelry, otherwise it will easily cause jewelry deformation or damage. Avoid putting multiple ornaments together, because they have different hardness, and should be stored separately in the frame after use to avoid friction and scratch, which will affect the texture; Some drugs will react chemically with silver ornaments and make them deteriorate, so be extra careful when touching drugs.

The best way to maintain silver jewelry is to wear it every day, because human oil can produce a natural and moist luster. Contains exquisite three-dimensional silver ornaments made into sculptures to avoid deliberate polishing. If you find that the silver ornaments are yellow, you should first clean up the thin seams of the silver ornaments with a small jewelry brush, and then gently wipe the surface with a silver cloth to restore the original silvery white and brightness. I would like to suggest that if the silver cloth can recover about 80% silver, it is not necessary to use silver to wipe milk and wash water. Silver wipes contain silver maintenance ingredients and cannot be washed. If you don't handle and collect the silver jewelry after wearing it, it is very likely that the silver jewelry will turn black. At this time, you should use a small jewelry brush to clean the fine seams of jewelry, then drop a drop of silver emulsion on the paper towel to wipe off the black oxide on the surface of jewelry, and then use a silver cloth to restore the original brightness of jewelry. After that, remember to do daily general maintenance to prevent the silver ornaments from turning black again. Silver ornaments are hard to turn white after being blackened many times.

The simple treatment of electroplating silver ornaments is as follows:

1. Go to the nearby Chinese medicine store or drugstore to buy a pack of alum first;

2. Then use the silver jewelry you wear as; The proportion of boiling water (water must be boiled);

3. Take out the silver ornaments and put them in cold water. Use a soft brush (such as a toothbrush) dipped in toothpaste or laundry detergent or salad for cleaning.

4. Blow dry with a hair dryer, and then wipe with suede, as bright as new.

The chemical properties of silver are also relatively stable, and its corrosion resistance is also strong. However, sulfur, nitric acid and oxides in natural media such as air have a certain corrosive effect on silver. After wearing silver jewelry for a long time, sulfur and silver combine to form a black silver sulfide film on the surface of silver jewelry, which begins to show as some tiny spots, and then spreads into pieces to form what we usually call silver scales or silver molds, which turn black and seriously affect the surface color of silver jewelry. When the silver jewelry has become seriously black, the following methods can be adopted:

(1): Soak in the solution of sodium bicarbonate (commonly known as baking soda), add a few pieces of broken aluminum under the first decoration, and heat them together to remove black spots and restore their true colors. The reason is that aluminum reacts with sodium bicarbonate to release hydrogen, which can quickly reduce sulfide black spots to metallic silver and release sulfur.

(2): Buy a pack of developing powder for developing photos, add 1kg water and stir it into a solution, soak the silver jewelry for 5min, then wash it with water and wipe it with a soft cloth.

(3): Wash with 1% hot soapy water solution, then wet the surface with sodium thiosulfate solution, and then wipe with flannel, so that the silver ornaments can be cleaned.

(4) As a cleaning solution, ammonia solution is widely used in traditional jewelry industry, but its effect is slightly inferior to that of phosphoric acid cleaning solution.

What are the tips for maintaining silver jewelry?

Silver jewelry is exquisite in workmanship and moderate in price, which is loved by most people. However, because silver jewelry is easy to oxidize, it will become dull after wearing for a long time. Therefore, the maintenance of silver jewelry is very important.

For the maintenance of silver jewelry, there are some important decisions:

(l) New silver jewelry

For the newly bought silver jewelry, you can apply a thin layer of colorless or light nail polish on the surface, which has high transparency and is beneficial to increase its luster and delay blackening. If you want to remove this layer of nail polish, you can soak it in banana oil, and then rinse it with clear water.

(2) Treatment of slight discoloration

For silver jewelry with slight changes in silver, it can be polished with decontamination powder or toothpaste; Or soak in sodium bicarbonate (i.e. baking soda) solution, and then clean and polish with a soft brush; You can also soak jewelry in a solution made of peeled and crushed Gleditsia sinensis, which contains soap and alkaloids, then soak it in boiling water and wash it with clear water; Or soak the silver jewelry in the soup of Platycodon grandiflorum Zhiyuan, and then wash it with clear water; It can also be soaked in oxalic acid solution with concentration below 50%. The use of all these methods can remove the slightly changed color on the surface of silver jewelry, making it as bright as new and as shiny as silver.

(3) Silver ornaments with spots

For silver ornaments with spots after being wet, you can wipe them off with warm vinegar and soft cloth, and then wash them with water. It can also be polished with detergent, toothpaste or tooth powder.

Usually, every 10 day, a layer of colorless nail polish can be applied to the silver jewelry to keep the luster and delay the discoloration. When wearing silver jewelry, pay attention to sweat, oil and moisture prevention.

Generally, the pure silver ornaments sold in the market are 925 silver, not 999 pure silver, because 925 silver is alloy silver made by adding other metals, and such 925 silver is also internationally recognized as pure silver, with a ratio of 7.5% alloy to 92.5% silver. Jewelry forged with this pure silver is stronger and less prone to wear and deformation. The real 999 sterling silver is as soft as pure gold and is made of alloy sterling silver. How to maintain sterling silver jewelry? The biggest reason for the oxidation of silverware is oxygen in the air, so blocking the air is the best maintenance method. For example, put the silverware in a sealed plastic bag and then put it in a pearl box to block the contact between air and silverware. When the silverware is oxidized, you can use silver washing water or a piece of silver cloth to wipe it, but the silver washing water is more lethal, so please try to wipe it with a silver cloth unless you have to. If it is bright with silver water, it should be picked up immediately and rubbed gently to clean the chemicals on the surface. In addition, soak in 90% alcohol 12 hours, wipe clean and dry; Or squeeze toothpaste on a dry cloth and wipe it directly, and the effect is also very good.

(1) What is 925 silver?

A: The silver ornaments mentioned now are generally 925 silver. In fact, 925 pure silver jewelry does not contain 100% silver, because 7.5% filler is added to pure silver (low-grade products usually use copper as filler, and high-grade products basically use alloy components much more expensive than copper), which improves the luster, brightness and hardness of silver. Moreover, since Tiffany introduced the first set of silver ornaments with a silver content of 925% in 185 1, 925 silver has become popular, so all the silver ornaments on the market at present are based on 925 to identify whether they are pure silver. After polishing, 925 silver jewelry presents a very beautiful metallic luster, but also has a certain hardness, which can be inlaid with gems and made into high-grade jewelry.

(2) What should I do if the silver ornaments turn black?

A: Silver jewelry is easy to oxidize and discolor after a period of time, whether it is worn or not. After this happens, you can take it to a jewelry store for cleaning and polishing, and the silver jewelry will look brand-new; If the oxidation is not serious, you can also take care of it at home: the easiest way is to polish your hair with silver cloth or scrub the surface of jewelry with toothpaste; If it is a soft necklace or carved jewelry, it can also be soaked in silver washing water, and it will turn white in three seconds.

(3) Are you allergic to wearing silver ornaments?

Answer: Low-grade silver jewelry is basically alloy-plated jewelry, and its important metal is nickel, which can cause skin allergies. At present, all high-grade products are treated with palladium, rhodium and gold, and do not contain nickel, so you can wear them with confidence. Cheap silver ornaments on stalls are either replaced by fake silver or treated with inferior and rough technology, so they often contain harmful metal substances. Users are advised not to buy it to prevent skin inflammation.

(4) How to wear silver jewelry:

6? 1 Generally, it is gentle to raise your hand when wearing jewelry.

6? 1 When doing housework or heavy work, and when sleeping at night, it is best to take off your jewelry to avoid it from being deformed or broken due to heavy pressure or tension.

6? 1 Long hair with necklace should be carefully combed, and it is best to comb it after taking it off to avoid the necklace from breaking or deformation.

6? When wearing 1, pay attention to avoid contact with cosmetics, perfume, acid and alkali substances, sulfides, etc. Silver jewelry tends to turn black when it comes into contact with the above substances.

6? 1 When jewelry is no longer worn, it should be cleaned, dried, wiped and sealed. Otherwise, it is easy to oxidize, turn gray and turn black.

6? 1 jewelry should be cleaned regularly. Pay attention to the cleanliness of the bottom of the gem when setting. When cleaning, first soak the jewelry in clean water with detergent, gently wipe the gem with a soft brush, then rinse it with clean water, and then blot it with a soft cloth. It is best to use warm water when cleaning. Ordinary detergent can also be used as a cleaning agent, but it must be rinsed clean in the end. After cleaning, you can gently wipe it with a silver cloth, which can make the silver ornaments brighter.

6? 1 Silver ornaments turn grayish black. After the above cleaning, they can be turned white and bright with silver cloth. Serious need to go back to the factory for renovation.

6? 1 silver ornaments are most afraid of strong collision, and they will become pitted and ugly.

6? 1 sterling silver is soft, and the inlaid gems are easy to loosen and fall off after strong collision in the pointed inlay.

6? 1 It is best not to wear silver ornaments when washing hands, taking a bath or swimming.

6? 1 silver cloth can't be washed and will lose its function.