Silver is a precious metal, and its main function is to be worn as various jewelry. More luxurious places also use silver to make daily necessities, such as tea sets, which are quite common. However, in the eyes of many people, silver is poisonous. Wouldn't it be poisonous if it was made into something to drink? They believe that boiling water in a silver kettle is bad for their health. So, what are the disadvantages of boiling water in a silver kettle? According to physical properties, heavy metals are classified by density of 5g/cm3. The standard density of silver is 10.5g/cm3, so silver is a heavy metal. But silver is the most special type of heavy metal, because whether it is gold or heavy metals such as lead and cadmium, they will damage the function of cells and even directly cause protein mutation. There is a saying in ancient times that people committed suicide by swallowing gold. Silver ions are widely used in disinfection situations because their activity is just enough to destroy the original bacterial proteins without causing damage to complex tissue cells. Therefore, silver is a safe heavy metal. What is the value of silver? Answer: Silver, Ag, as currency in ancient times, has the value of measuring prices. Today, silver is also widely used in medical, military, aerospace, lighting and other industries. "Silver ion sterilization" is currently the most advanced sterilization technology in the world. Scientific research shows that as long as there is 2 billionths of milligrams of silver ions per liter of water, it can kill most bacteria in the water. In recent years, international home appliance giants such as Samsung Electronics and LG have invested hundreds of millions of dollars in developing and promoting its application in home appliances. More than half of the international airlines have already used silver-packed water filters. Moreover, silver is often used in medical treatment. CT, angiography, etc. all use the high refractive index of silver. Water purifiers and anti-inflammatory sprays use the bactericidal and disinfecting effects of silver. So, to sum up, silver is a heavy metal, but it is not only non-toxic, but also can kill viruses. In addition, it is used in medical, military, aerospace, light and shadow and other industries. Silver is an indispensable element in life. Analysis of the physical and chemical properties of silver? Answer: The content of silver Ag in the earth's crust is very small, accounting for only 1×10-5%. Natural silver exists in nature, but it is mainly produced in the form of compounds. Pure silver is silver in color, with a melting point of 960.8°C, a boiling point of 2210°C, and a density of 10.49 g/cm3. Silver has a face-centered cubic lattice with good plasticity and ductility second only to gold, but when it contains a small amount of arsenic As, antimony Sb, or bismuth Bi, it becomes very brittle. Silver has good chemical stability and does not oxidize at room temperature. But among all precious metals, silver has the most active chemical properties. It can dissolve in nitric acid to form silver nitrate; it is easily soluble in hot concentrated sulfuric acid and slightly soluble in hot dilute sulfuric acid; a thin film of silver chloride is formed on the surface in hydrochloric acid and "aqua regia"; when it comes into contact with sulfides, black silver sulfide is formed. In addition, silver can form alloys with gold or copper in any proportion, and it is very easy to form alloys when eutectic with copper and zinc. It can form silver amalgam when in contact with mercury. So the highly toxic mercury we often talk about in our daily lives is mercury, not silver. In fact, silver can also neutralize mercury and achieve a disinfecting effect. Why is silver water good for making tea? Answer: The silver kettle is made of pure silver. The water in the silver kettle will release trace amounts of silver ions. As long as there is one in fifty billion parts of silver ions in one liter of water, it is enough to make bacteria unable to survive. Drinking water stored in a silver pot can remain fresh for several months. Therefore, boiling water in a silver kettle can soften the water, making it taste noticeably sweeter when you drink it. Using a silver pot to brew tea will make the tea soup taste better; the astringency will be reduced and the taste will be longer, smoother and mellower, which will better show the flavor and fragrance of the tea. Silver can inhibit almost all bacteria and extracellular viruses known to date, is harmless to the human body, and will never develop any drug resistance. It is because of the bactericidal and disinfecting effect of the silver ions released by the water in the silver pot that a certain amount of bacteria produced more or less during the storage of tea are killed, the odor of tea is eliminated, and the quality of tea is improved, so that the tea brewed in the silver pot has a better taste. So the saying that tea brewed in a silver pot tastes better is not just a fabrication. |
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