So where do sulfides exist in life?
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0 1, sulfide in the air.
We often say that silver oxidation is mainly sulfide. The chemical properties of silver are more active. When it encounters hydrogen sulfide gas or sulfur ions in the air, it is easy to form a kind of extremely insoluble silver salt. The amount of this chemical change is very small. As long as silver meets trillions or even billions of hydrogen sulfide gas or sulfur ions in the air, chemical reactions will occur to generate compounds of sulfur and silver. After a long time, this compound will slowly form a layer of black silver sulfide film on the surface of silverware, first showing as some tiny spots, and then gradually spreading into pieces, commonly known as "silver scale" or "silver mold", and the color of silverware surface will gradually change from white to yellow, gray and finally black. It is normal that any silverware will slowly turn yellow or black if it is directly exposed to the air without protection.
02, sulfide in human sweat
People's sweat contains sulfur, but everyone's physical condition is different, so everyone's contact with silverware will have different results. Some people's body fluids contain high acidity and sulfur content, which will lead to the surface blackening of silverware. People with weak acid constitution do not raise silver, and silver tends to turn black.
03. Sulfide in daily chemical products
If silverware comes into contact with some sulfur-containing daily necessities in life, such as cigarettes, perfumes, cosmetics, sulfur soap, facial cleanser, shower gel, hot springs, etc. , it will turn black easily.
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Now we all know why silverware is oxidized. Therefore, in daily use, we should avoid being contaminated with oil, sweat and chemicals, and avoid rubbing against other hard objects. Pay attention to regular inspection for oxidation and timely maintenance. So since the oxidation of silverware is inevitable, what should we do?
0 1, brush with toothpaste
Squeeze some toothpaste on the silverware, smear it evenly, find a soft toothbrush, brush it back and forth gently and slowly until the black part disappears slowly, and then rinse it with clear water, and the silverware will turn white and bright! This is the most commonly used and effective method.
02. soak in coke
It's useful to soak silverware in coke, some silverware that is not easy to scrub. For example, some silverware has so many patterns that it can't be brushed with a toothbrush. Just use this method, soak for a while, and then clean.
Wash with vinegar or tea.
Washing silverware with vinegar and strong tea has the same effect. These are all things that you will come into contact with in your life. See which method you use to facilitate cleaning.
04, use professional silver cloth.
When buying silverware, you usually give a piece of silver cloth, which is a special professional cleaning cloth with silver powder on it, so that it can be cleaned.
This answer is provided by the planning department of Hunan Chen Zhi Jewelry Co., Ltd.. I hope I can help you. Thank you!