First of all, we all know that silver jewelry turns black because it changes chemically with some chemicals in the air. If a layer of discoloration on the surface can be removed chemically, that is, the product, then silver will see the light again. So, do silver tin foil and salt belong to this category?
The silver jewelry we wear every day is actually silver sulfide produced by contact with sulfur. This kind of silver sulfide is the gray thing we usually see. According to the netizen's coup, first wrap the silver with tin foil and then pour salt water into it. After a period of cleaning, the original brightness of the silverware was obviously restored. This is actually a physical change. Its scientific principle is that electrons are reduced by heating tin foil, and the oxidized black color can be changed by adding salt, so that silver can regain its former brightness.
However, the specific operation also needs attention. First of all, we need to find a finger cup or a small bowl, wrap it in tin foil, put in silver ornaments, then pour salt into the cup, the salt can completely cover the cup, and then slowly pour boiling water into the cup, so that the silver ornaments can be taken out after 3-5 minutes.
The specific operation is like this, but there is also a problem, that is, if you do it often, will it be bad for silver jewelry? The answer is yes.
The reason is also very simple, because this reaction exposes the nude color of silver, but it will also accelerate the next oxidation of silver, so the next silver jewelry will turn yellow and gray faster. Therefore, if you want to clean silver jewelry safely, you'd better take it to the store for professional maintenance.
The netizen's little coup is not unreasonable, but we should try it carefully at ordinary times. Usually, if you find that the color of silver jewelry is no longer bright, whether it is yellow or dark, you can carefully wipe their surfaces with toothpaste and then scrub them with a soft cloth. Before going to bed or taking a bath, take down the jewelry and keep it properly, so as not to let cosmetics and skin care products come into contact with it, including some perfume or hair gel, which may damage the silver jewelry.
Jewelry is naturally formed. Whether precious metals or jade jewelry, they were discovered by human beings after tens of millions of years of crustal movement, but this does not mean that they are really invincible and impeccable. In fact, they also need some necessary daily maintenance. Even precious diamonds are a member of the carbon family, so other precious metals are inseparable from our usual careful maintenance. If you are busy at work or family life, you may wish to go to the store regularly for professional maintenance. Only by giving it to professionals can we get more professional maintenance and prolong the value and life of silver jewelry. This is today's sharing. Have you learned?