Why does the silver bracelet change color? Silver jewelry is very common. There are many reasons why the silver bracelet suddenly turns black, which is usually caused by oxidation reaction with some ions in the air. The following analysis explains the reasons for the discoloration of the silver bracelet.

Why does the silver bracelet change color? 1 Reasons for discoloration of silver bracelet.

The important factor is the chemical reaction between silver ions and sulfur ions, and the result of the reaction is the formation of silver sulfide on the surface of silver. Because silver sulfide is grayish black, with the increase of silver sulfide, the color of silver surface gradually changes from white to yellow, then to gray, and finally to black.

This chemical change can occur in a very small amount, as long as silver meets hydrogen sulfide gas or sulfur ions in the air in the range of trillions to hundreds of trillions, this chemical reaction will occur.

Human sweat also contains sulfur, and contact with silver products will make silver discolor, especially the hydrogen sulfide produced by sewage and garbage discharge in urban air is even more amazing, so it is not surprising that silver discolors. Just wash with toothpaste, especially fluoride toothpaste.

Rules for wearing silver jewelry

1. Professional wear is suitable for matching with a sterling silver necklace, with simple style and slim shape.

2. Casual wear is suitable for matching sterling silver rings with unique design and exaggerated shape.

3. Wear a silver bracelet with a small bell, which is perfect for cute dress.

4. Silver decorations with colored artificial gem are suitable for young girls.

5. Tibetan silver has a strong personality, so it is not suitable to wear professional clothes, so as not to give people the feeling of being unprofessional and capable.

6. Silver jewelry should not be mixed with gold jewelry, but different styles of silver jewelry can be worn together, showing rich texture.

7. When attending luxury occasions or wearing gorgeous clothes, you should choose silver ornaments with precious jewels and diamonds.

8. After the silver ornaments get old and black, they can be worn without cleaning. Nostalgia tastes great, too

9. Silver ornaments are fashionable things, so you should pay attention to changing the styles you wear frequently.

10. The popular matching method this year is to match more than two kinds of silver ornaments with each other to create a unique feeling.

Identification of silver ornaments

Look at this mark.

Silver ornaments are generally stamped with the English abbreviation of silver ("S" or "Sterling"). The mark of standard silver is S925 or 9.25 or 925. The imprint of foot silver is S990. But there are also many countries that don't print paper money on silver ornaments. Or 9.25925 marks. There are also thousands of silver labels or S999.

Check the color

Silver ornaments are mostly yellowish silvery white with a soft metallic luster. Due to easy oxidation, the color will turn dark yellow and white after a long time.

consider

The density of silver is10.53g/cm3. Smaller than platinum and gold, it won't fall off by hand. Steel needles can be marked or bent. In this way, it can be distinguished from German platinum, K gold or imitation silver jewelry.

Check hardness

The hardness of silver is lower than that of copper, but higher than that of lead and tin, so it can be tested by marking jewelry in an inconspicuous place with a pin. If the needle slips, it is difficult to leave traces on the surface, which can be judged as copper jewelry; If it is made of lead and tin, the trace is obvious; If the object has traces but is not obvious, it can be preliminarily judged as silver jewelry.

Listen to this poem

Sterling silver jewelry fell to the ground and was not elastic. The lower the color, the lower the sound, and the sharper and higher the rhyming sound; If it is made of copper, its sound is high and sharp, and its rhyme is short and short; If it is made of lead and tin, the sound of falling to the ground is dull, short and inelastic.

Maintenance of silver ornaments

1, wash clothes and take a bath, and take off the silver ornaments for rough work.

2. Keep the silver ornaments tightly when not in use, and avoid putting them together with hair gel, perfume and skin care products.

3, silver jewelry contact with hot spring water or sulfide, easy to change the surface, so should avoid wearing in hot spring areas.

4. Silver is light brown after oxidation, and can also be directly wiped with a silver cloth.

5, the best way to maintain silver jewelry is to wear it every day, because human body oil can make silverware produce a natural and moist luster, which is the so-called "human body support."

6. Pay special attention to the' silver ornaments' inlaid with stones, and try not to get wet, because there will be gaps in the mosaic joint, and the stones will easily fall off when they meet water.

Why does the silver bracelet change color? First of all, what is the reason why the silver bracelet turns black? From a scientific point of view, although silver is an inactive metal element, it is generally not oxidized. If you don't wear it or use it, the sealing condition is intact and it can always be kept as clean as new. But why do some people find that silver bracelets turn black when worn?

As a chemical element, silver is lazy, but it doesn't mean that it won't react with anything in nature. The most common reaction is with hydrogen sulfide and elemental sulfur in the air and some toxic gases. When the silverware is exposed to the air for a long time, it is inevitable that some substances will be polluted by coincidence, and chemical reactions will take place, and finally the silverware will turn black.

Silver bracelets are usually worn on people's wrists, which are in contact with people's skin. People also wear silver bracelets to do other things. If you happen to meet some chemicals that can react with silverware, it is understandable that the silver bracelet turns black.

From the perspective of feng shui folklore, silver bracelets are worn on people's bodies, and people will also excrete waste, and silver bracelets will also be contaminated with such excreta as sweat. If a person is weak, excrement will increase and silver bracelets will turn black. Moreover, feng shui believes that when a person's fortune is not smooth, his physical function will also be affected. Therefore, black and silver bracelets can also indirectly prove that a person's recent physical condition is not good and his fortune is not prosperous.

Second, what can I do with the black and silver bracelet? From a practical point of view, the ways to avoid the blackening of silver bracelets are as follows: First, don't wear silver bracelets and other accessories at the same time, so as to avoid collision or reaction, which will lead to the blackening of silver bracelets; The second is to keep the silver bracelet dry, and don't always soak it in water, especially warm water and salt water, which will accelerate the oxidation of the silver bracelet.

If the silver bracelet is black, you can choose to remove the moisture and dirt on the surface of the silver bracelet and put it in a clean and sealed plastic bag to avoid contact with air. Leave it for a while, then wash the silver bracelet with toothpaste and a little water, and then simply wipe it, then the silver bracelet can restore its previous luster.

Why does the silver bracelet change color? What should I do if the silver bracelet turns yellow?

1, professional silver cloth

It's a special professional cloth, and then there will be silver powder on it, so it can be cleaned.

2. Toothpaste

Using toothpaste is to directly put toothpaste on the silver jewelry, and then add a little water to beat out the foam. If there is a seam, brush it with a toothbrush to prevent foam from entering the seam.

3. Silver washing water

For silver washing water, immersion method (except for the old process) or wiping method (except for platinum plating process and inlay process) can be used. Put the silver ornaments in silver washing water for about three minutes (if the oxidation is particularly serious, they can be stored for a long time), take them out and rub them repeatedly, rinse them with plenty of water, put them into alkaline sleep (such as washing powder water), and finally rinse them with water.

How to solve the yellowing of silver bracelet?

1. In addition to toothpaste, dentifrice can also be used to clean discolored silver bracelets, and it can also play a cleaning role.

2. Take a container, pour a proper amount of cola, then put the silver bracelet to be treated, soak it and wipe it with a soft cloth.

3. Squeeze the toothpaste on the soft cloth, and then wipe the silver bracelet with the soft cloth. After repeated wiping several times, rinse it with clear water, and then dry it to save water.

4. If it is a yellow silver bracelet, you can directly wipe the surface with a silver cloth. By wiping, you can wipe off the oxide on the surface and restore the original luster. Silver cloth can't be cleaned, which will affect the use effect.

Causes of yellowing of silver bracelets

Everyone has studied chemistry in junior high school and senior high school, and also studied Tong Yuan's periodic table of elements. Only one substance is silver, and the silver element mentioned in the periodic table is the essence of silver bracelets. Silver is very unstable and easily reacts with oxygen in the air. Once it stays in the air for too long, it will be oxidized, and the result is that the silver bracelet turns yellow, which is the real reason why the silver bracelet turns yellow.

Is it normal for silver bracelets to turn yellow?

This is a normal phenomenon. The yellowing of silver bracelets is a slight oxidation phenomenon on the surface, which is related to physical fitness and wearing environment. Metals will be oxidized in air. Water, sulfur and chlorine in the air are the chief culprit to accelerate its oxidation, and sulfur is the main factor to blacken silver, and silver will react strongly when it comes into contact with sulfur-containing substances. This is why the washed sulfur soap usually turns black after soaking in hot spring silver jewelry. Generally, when silver ornaments turn yellow, as long as they are treated with silver cloth or silver washing water, the original silver brightness can be restored.