Silver jewelry: Why does salt water shine when it is soaked?

Why does silver jewelry shine when it is soaked in salt water

Why does silver jewelry shine when it is soaked in salt water? Silver jewelry is one of the jewelry that many people like to wear, but it is easy to turn black after wearing it for a long time. Many people have thought of various ways to solve it. In fact, the simplest way is to soak it in salt water. Then why does silver jewelry shine when it is soaked in salt water? Why does silver jewelry shine when it is soaked in salt water? 1

It is normal for silver jewelry to turn black when it is worn for a long time. If it is soaked in salt water, it will restore its luster due to redox reaction. Wear silver jewelry every day to avoid contact with irritating liquids and prevent color change.

The reason why silver ornaments are bright in brine

Silver ornaments are bright in brine because of redox reaction. The chemical properties of silver are unstable. If it is worn for a long time, it will undergo an oxidation reaction with oxygen in the air, resulting in the surface turning black and yellow.

If the blackened silver jewelry is soaked in salt water, it will produce a reducing agent, form a redox reaction and become very bright again. Therefore, when the silver ornaments become black, they can be cleaned and restored by this method.

When wearing silver jewelry daily, be careful not to touch irritating liquid, take it off in time when taking a bath, soaking in hot springs or washing dishes, and avoid touching soap, hair dye, perfume and other items, which may damage the luster of the silver jewelry surface.

The easiest way to detect pure silver

1. Color

The detection of pure silver can be based on the color. The higher the purity of silver, the more uniform and shiny the surface color will be, and it will be touched up. On the contrary, the lower the purity of silver, the darker the surface color will be, and the white will be gray.

2. Sound

You can listen to the sound when detecting pure silver. Throw pure silver upward to listen to the landing sound. The higher the purity of silver, the weaker and duller the landing sound will be, and the bouncing sound will not be high. The lower the purity of silver, the sharper the landing sound and the higher the bounce.

3. Traces

You can see traces when detecting pure silver. Draw the pure silver on the wall. The higher the purity, the more obvious black scratches will be left on the surface. The lower the purity of pure silver, the smaller the scratches on the surface.

Silver, that is, silver, is called silver because of its white color, as opposed to gold. Use it as money and decorations. In ancient times, money was called silver. Pure silver is white in color, with metallic luster mixed with impurities, soft in quality, hardened after being mixed with impurities, and gray and red in color. Pure silver has a specific gravity of 1.5, a melting point of 96.5℃ and good electrical conductivity, and is soluble in nitric acid and sulfuric acid. Silver is one of the metals found in ancient times.

although silver also exists as a simple substance in nature, most of it exists in the form of combined state. Silver has a high ductility, so it can be rolled into a transparent foil with a thickness of only .3 microns, and 1 gram of silver particles can be drawn into filaments about two kilometers long. The thermal conductivity and electrical conductivity of silver are among the best among metals.

pure silver is white, with metallic luster mixed with impurities, soft, hardened after being mixed with impurities, and its color is gray and red. The melting point is 961.93℃, the boiling point is 2212℃, and the density is 1.5g/cm3 (2℃). Silver is soft and has good flexibility and ductility, which is second only to gold. It can be pressed into thin sheets and drawn into filaments. Soluble in nitric acid and sulfuric acid.

the reflectivity of silver to light reaches 91%. At room temperature, halogen can slowly combine with silver to produce silver halide. Silver does not react with dilute hydrochloric acid, dilute sulfuric acid and alkali, but it can react with strong oxidizing acid concentrated nitric acid and concentrated hydrochloric acid.

The main uses of silver are mainly based on three pillars: industry, photography and jewelry and silverware. The total demand of these three categories of silver accounts for about 85% of the demand for silver.

Since ancient times, silver, together with gold, has been regarded as a symbol of wealth. The chemical symbol of silver is Ag, which comes from the Latin Argertum, meaning "light and bright". Because silver is white, it is called "silver".

Silver not only has good electrothermal conductivity, but also has high photosensitivity and luminous characteristics, and is used in industry, photography, jewelry, currency manufacturing and so on.

Compared with gold, silver was more and earlier used in coinage and entered the circulation field because of its abundant supply and low value. Many countries established the silver standard system and took silver coins as the mainstream currency. Why does the silver ornament shine when it is soaked in salt water? 2

Why does the silver ornament shine when it is soaked in salt water?

The reason why the silver ornament shines when it is soaked in salt water is because of the redox reaction. In people's daily life, when silver ornaments are worn for a long time, a chemical reaction called "oxidation" will occur with oxygen in the air, resulting in the surface of silver ornaments turning black and yellow. After the salt is soaked in hot water, it will produce a reducing agent and a reduction reaction. After a sufficient time of contact between the silver ornaments and hot salt water, it will produce a reduction substance, which will turn black and yellow. The silver ornaments will become very bright.

Tips for cleaning silver ornaments

1. Wash with soapy water: soak in soapy water for about 15 minutes, then gently brush with a brush, and finally clean with clean water.

2. Cleaning with toothpaste: Squeeze toothpaste on the surface of silverware for washing, then let it stand for 1 minutes and then clean it, so that stains can be easily removed.

3. Cleaning with white vinegar: soak the silver ornaments in white vinegar for 3 minutes, then take them out and gently wipe the stains, and they will easily fall off.

　 ；

Don't wash silver jewelry with toothpaste when it is black. It's a simple and small way to soak it as bright as new!

The silver ornaments we usually wear will be dull if we wear them for a period of time. If it is serious, it will turn black. What should we do with the black bracelet? Just soak in this bubble and it will light up immediately.

It is inevitable that the silver ornaments worn for a long time will be oxidized and blackened, which can't be cleaned by simple methods. So what should we do? Many friends use toothpaste to wipe it directly, but toothpaste can only wipe off the dirt and oxidation on the surface. If it is particularly serious, it will still be black.

all we need is a piece of tin foil and salt to easily change the black silver ornaments back. The first step is to prepare a bowl, spread tin foil paper in the bowl, and then sprinkle with edible salt, just the salt used at home. We will put the blackened bracelet directly in the bowl, and then pour in hot water, which must be remembered as boiling hot water. After waiting for a minute or so, we can be surprised to find that the oxidized bracelet turns bright and white.

because the blackening of silver is oxidized by oxygen, a layer of silver oxide will be formed on the surface, and the silver oxide is black, so the salt solution provides an electrolyte environment between the tin foil paper and the silver ornaments, so the tin foil paper is easy to lose electrons after heating, and the silver oxide is changed into a silver single value through the electrolyte environment provided by the salt solution, thus making the silver ornaments brighter. Why does the silver ornament shine when it is soaked in salt water? 3

The reason why the silver ornament shines when it is soaked in salt water is that there is an oxidation-reduction reaction between silver and salt water. The salt water is equivalent to a reducing agent, which reduces the oxidation reaction of silver. This phenomenon not only occurs in salt water, but also occurs in soda water, cola and tea. Therefore, this feature can be used when cleaning silver ornaments.

The reason why silver ornaments are bright when soaked in salt water

The reason why silver ornaments are bright when soaked in salt water is because of the redox reaction between silver and salt water. Generally speaking, silver jewelry will undergo oxidation reaction with air, which will turn silver jewelry yellow and black. When it meets salt water, it will produce reducing agent, which will brighten the silver ornaments.

If you want to brighten the silver ornaments with salt water, it is recommended to use tin foil paper. Put the salt water and the silver ornaments together in the tin foil paper and heat it. When the tin foil paper is completely heated, the silver ornaments will be washed naturally.

The oxidation-reduction reaction of silver ornaments occurs not only in salt water, but also in soda water, cola and tea. Therefore, if silver ornaments undergo oxidation reaction, items such as salt water and soda water can be used for cleaning.

The easiest way to detect pure silver

1. Color

The detection of pure silver depends on the color. The higher the purity of silver, the whiter the color, which looks even and shiny, with a moist feeling on the surface and a soft metallic luster; Silver with low purity will be slightly yellow on the surface, rough in workmanship, dull or low in gloss on the surface.

2. Sound

You can listen to the sound when detecting the purity of pure silver, and you can throw the pure silver gently. The higher the purity of silver, the weaker the sound of landing will be, and the bounce will not be high. While the silver with low purity makes the landing sound sharp and harsh, and the bounce is also high.

3. Scratches

When detecting pure silver, you can look at the scratches, and you can use a sharp object to scratch the inconspicuous position of silver ornaments. If there are obvious black scratches on the surface, it is high-purity silver. However, the traces left on the surface of silver with low purity are relatively small.