The more silver bracelets you wear, the darker the color. This has nothing to do with your health. It is not reliable to say that wearing silver jewelry can absorb toxins in the body. Here are some relatively scientific explanations:

Silver has stable chemical properties and strong corrosion resistance. However, sulfur, nitric acid and oxides in natural media such as air have a certain corrosive effect on silver. Silver jewelry may form a layer of black silver sulfide on its surface after being worn for a long time.

Because silver sulfide is gray-black, with the intensification of the reaction, silver sulfide increases and thickens, and the surface color of silver gradually turns from white to yellow to gray, and finally turns black.

2. The silver bracelet turns black and you sweat a lot.

Sweat contains a lot of sulfur, which is no big deal, but the sulfur content in sweat varies from person to person. There are also some external reasons, such as smoking all the year round, the habit of wearing heavy makeup with perfume, often using sulfur soap and enjoying hot springs.

How to make silver bracelets brighter and brighter?

If the wearer has the habit of making small moves, it is possible to make the silver bracelet brighter and brighter, for example, you always rub it.

3. Pay attention to the "radioactivity" of gold and silver jewelry.

Gold is radioactive, but what is radioactive is not gold itself, but its isotope. All elements have isotopes, and gold is no exception, but it usually takes about a year (even if you buy it! ), gold will stabilize.

However, because gold and silver ores often contain radioactive elements such as cobalt, polonium and radium, in the process of mining, smelting and making jewelry, a small amount of radioactive substances may remain on jewelry, thus causing harm to human body. Even so, qualified gold and silver processors will treat it to reduce radioactivity.

PS: Is the skin red, swollen and itchy? Beware of allergies!

Pure gold and silver jewelry has fewer allergic symptoms, while alloy jewelry has more. The reason for this is the following：

First, the surface of alloy jewelry is usually plated with a layer of pure gold or pure silver, but after long-term friction with the skin, nickel, chromium, lead and other components in the jewelry will be exposed, irritating the skin.

Second, the sweat discharged by the human body is acidic, which can decompose the coating on the surface of jewelry, thus causing harm to the skin.

Re-PS: how to maintain silver jewelry

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) has been oxidized black, can use a soft brush dipped in toothpaste, or use neutral detergent to clean. If it is really impossible to clean, brush it with silver washing water and dry it with cotton cloth after washing.

2. Do you know anything about Silver?

I don't know anything except to test the poison with a silver needle.

1. What should the baby pay attention to when wearing silver jewelry?

Under normal circumstances, sterling silver jewelry will not cause any adverse effects on the human body. However, for impure silver jewelry, be wary that it contains metals such as nickel or chromium, which may cause irritation to the skin, especially to the baby with delicate skin. Exposure to these metals for too long will increase the risk of allergic dermatitis. In addition, we should also pay attention to the situation that it is easy to hurt the skin and accidents occur.

In addition, many alloy raw materials and electroplating raw materials of pure silver jewelry belong to heavy metals, which may cause heavy metal poisoning if the baby is contained in his mouth. Therefore, when choosing silver jewelry for the baby, parents are advised to wear sterling silver jewelry for the baby.

2. Can a silver needle be used for poison detection? Can't!

When the sulfur contained in arsenic comes into contact with silver, a chemical reaction can occur, so that a layer of black "silver sulfide" is formed on the surface of the silver needle. That is to say, the method of silver needle toxicity test actually detects sulfur-containing impurities in arsenic, not arsenic itself. It is purely coincidental that silver needles were successfully used in drug detection in ancient times.

3, silver can not test all poisons, but it can be disinfected!

Silver ions have been proved to have a certain bactericidal effect. As long as there is one milligram of silver ion in every liter of water, most bacteria in water can be killed. The principle is that silver can form positively charged ions in water, adsorb bacteria in water and gradually enter bacteria, so that its catalyst-enzyme system is shut down and inactivated, and bacteria lose their metabolic ability and die. The use of silver tableware and jewelry in daily life may be beneficial to human health to some extent.

Third, some knowledge about gold and silver jewelry.

It's no use knowing, because I have no jewelry.

1, why does gold darken?

If it is pure gold, the surface may be "dirty" by grease or something. In addition, if it is not 24k, other alloy parts may be oxidized and corroded, such as silver.

Silver turns black not because of oxidation, but because it reacts with sulfur in the air to produce sulfide, which generally occurs in places where the concentration of hydrogen sulfide and other gases in the air is relatively high. Gold element is stable in nature, and this phenomenon generally does not occur.

Maintain gold like this:

Chemicals such as detergents and disinfectants will change the color of gold, so the gold ornaments should be removed before cleaning and swimming to avoid chemical changes on the surface.

② After wearing, gold ornaments often lose their luster due to stains and dust pollution. At this time, just put the gold ornaments in neutral detergent, soak them in warm water and clean them, and then take them out to dry.

3 Pure gold jewelry should avoid direct contact with cosmetics such as perfume and hair gel. When it comes to cosmetics containing mercury and lead, chemical reactions will occur, which will easily lead to white spots on the surface of gold jewelry.

2, people raise jade, jade raises people? Does this make sense?

Some people are allergic to wearing metal ornaments, so they choose jade and agate. In fact, the temperature of human body, sweat or grease are all beneficial to the structure of jade. There is some truth in the saying that people raise jade. People can really make jade more transparent and beautiful. However, there is no scientific basis for saying that jade raises people or jewelry raises people.