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There is a thing today whose chemical name is unknown. We should study its meaning in detail with the wisdom of the ancients.
The name of the chemical name of the husband is also used to identify the characteristics, composition and structure of the substance. Looking at the chemical name of a thing is like looking at its inner texture, and you can see its essence.
In ancient learning, although it is not as detailed as today's chemistry, there is still a cognition and naming of the substance. The ancient people gave the name of the substance because of their observation and experience, which all had profound meanings. The name of today's chemistry also inherits the spirit of the ancients in exploring the mysteries of matter, and is more accurately defined by scientific methods.
In the chemical name, or the name of the element, to express the basis of its composition. Elements are the foundation of all things, and each has its own characteristics. For example, "gold", "wood", "water", "fire", "earth" in ancient times, and hydrogen, oxygen, nitrogen, and carbon in the present are all essential components of substances. If a chemical name contains an element, it can be known that the substance is related to it.
Or there may be a description of the structure of the substance. For example, in organic chemistry, many names describe the structure of molecules, and the length of chains, the presence or absence of rings, and the connection of bonds are all clearly presented. This description of the structure is the characteristic of the substance, because of its different structures and different properties.
Furthermore, the chemical name or the source and use of the substance involved. Where it originated and where it was used can be known in the name. For example, the names of certain minerals are often related to the place of origin; the names of certain medicines may indicate their healing effects.
Therefore, the chemical name of a thing contains rich meanings. It is the crystallization of scientific exploration and the bridge that connects the appearance and essence of matter. Through chemical names, we can open the door to the material world, explore its mysteries, and understand its laws, so as to benefit our life and development.

Mercury, commonly known as mercury, was also known as "beautiful girl" in ancient times. Its main uses are reflected in many aspects.
In terms of alchemy, mercury was an extremely important raw material in the process of alchemy in ancient Taoism. Alchemists firmly believe that through specific refining methods, mercury can undergo wonderful changes, and then refine elixirs that can make people live forever. According to the "Baopuzi · Inner Chapter", alchemists tried to refine "Huantian" with mercury and other substances, believing that this pill could prolong life and become immortals.
In the field of medicine, mercury and its compounds have been used to treat diseases. Such as light powder (mercurous chloride), it has certain effects on poisoning and insecticides, astringent sores, and has a certain curative effect on scabies, syphilis, ulcer and other diseases. Many ancient medical texts such as the Compendium of Materia Medica recorded the medicinal methods of mercury and related drugs. However, at that time, people did not fully understand the toxicity of mercury, and there were certain risks when using it.
In metal smelting, mercury can be used to extract certain metals. Using the properties of mercury to form amalgams (alloys) with metals such as gold and silver, when ore is processed, mercury is mixed with ores containing gold and silver. Mercury will dissolve metals such as gold and silver, and then evaporate mercury by heating, so as to obtain higher purity gold and silver. This method is widely used in ancient gold and silver mining and refining.
Mercury also plays a role in the production of ornaments and handicrafts. For example, the amalgam gold plating method, which makes mercury and gold into amalgam, applies it to the surface of the utensils, and evaporates the mercury after heating. The gold firmly adheres to the utensils, forming a bright golden decorative layer, which enhances the aesthetics and value of the utensils. This process can be seen on the decoration of many precious metal utensils in ancient times.

Mercury is a unique thing, and its physical properties are very different.
Looking at its form, under normal circumstances, mercury is in a liquid state, like flowing silver, shining and very smart. This liquid shape is unique among all metals, and few others can match it.
When it comes to color, mercury is silver-white, pure and bright, just like the moonlight pouring out, and it is like a silver mirror opening, the light can be seen, and its color is bright and unforgettable.
Besides its density, the density of mercury is quite large, compared to common water, it is about thirteen times heavier. If placed on top of the mercury liquid, the lighter will float, and the heavier will be difficult to sink easily. This property makes it unique in many experiments and applications.
As for volatility, mercury is highly volatile. In a room temperature environment, mercury quietly emits mercury vapor, which is colorless and odorless, but potentially toxic. Although invisible and colorless, its harm should not be underestimated. Therefore, when using and storing mercury, extreme caution should be taken to prevent mercury vapor from escaping and endangering human health.
Looking at its melting point and boiling point, the melting point of mercury is extremely low, about -38.87 ° C, which is a liquid at room temperature. The boiling point of mercury is 356.6 ° C. This property allows mercury to remain liquid within a certain temperature range, playing a key role in thermometers, barometers and many other instruments, helping people measure important data such as temperature and air pressure.
In short, the physical properties of mercury are unique, and it has important value in many fields such as scientific research and industrial production. However, due to its toxicity, it needs to be properly treated and used with caution.

Mercury is also a chemical substance. Its properties, at room temperature, are liquid metals, with a silver luster, and easy to flow. As for its chemical properties, it is unstable.
The activity of mercury is higher than that of inert metals such as gold and silver. It can combine with many non-metallic elements. In case of sulfur, the two quickly combine to form mercury sulfide. The speed of this combination is like a sudden wind and rain, which shows the activity of mercury.
And mercury in the air, although it does not change significantly at room temperature, when heated, it can combine with oxygen to form mercury oxide. This also proves that its chemical properties are not completely stable, and will change under suitable conditions.
Mercury in compounds, the common valence is + 1 and + 2. Its compounds also have their own characteristics, some of which are highly oxidizing.
And mercury is easy to form amalgams, that is, alloyed mixtures with other metals. This property also shows that mercury can interact with many metals in chemical reactions.
Looking at various things, the chemical properties of mercury are not stable, and it often shows its active reaction state under certain conditions. On the stage of chemical change, it interacts with various substances in a unique manner, deducing a rich chemical chapter.

When alum is white, it is filled with porcelain bottles. If the juice is exhausted by burning with charcoal fire, its color is like snow, and it is called basalt. This stone is used for all bells and other iron tools.
When casting bells, it is about the sound, so you need to be careful when choosing alum. The color of alum stone is pure and good quality, so that the sound of the bell can be heard far and wide. And when burning with charcoal fire, the temperature is also critical. The size and duration of the fire affect the effectiveness of alum stone. If the fire is insufficient and the juice is not exhausted, the alum is not pure, and the casting is difficult to achieve exquisite; if the fire is too much, the alum or destruction will not be used.
The tools for casting bells should be clean and stain-free.
In addition, when casting other iron tools, the effect of alum stone is also great. It can make the texture of iron stronger, resist corrosion and wear. However, when operating, it is also necessary to follow the law. The shape and size of iron tools are related to the amount of alum stone used. Large tools are used more often, and small tools are used less often, so it cannot be generalized.
Alum stone is used in the production of castings and iron tools. Although it is helpful, when using it, all details need to be paid attention to. If there is a slight mistake, it may fall short. Only by being cautious and following the ancient methods can you get the best tools and make the best use of them.