1-Benzothiophene-2-carbaldehyde

Poison is a kind of poisonous bird in legend. Its feathers are soaked in wine, and it will die immediately after drinking. "Shuowen" said: "Poison is poisonous bird." The poison of poisonous wine was often used as a means of death in ancient times. "Zuozhuan · The first year of Min Gong" recorded: "Feast an poisonous poison, and you should not be pregnant." The use of poisonous wine as a killing weapon shows the intensity of its poison.
Ma Jiesan is an anesthetic created by Hua Tuo. Its main ingredient is mandala flower. When Hua Tuo performs surgery, he often asks patients to take Ma Jiesan with wine, and wait for them to be drunk and unconscious before performing surgery. " In the later Han Dynasty, the biography of Hua Tuo wrote: "If the disease is caused by the inside, and the acupuncture and medicine cannot reach it, it is necessary to first take Ma Jiesan with wine, and if you are drunk, you will not feel it. Because of the broken abdomen and back, you will cut and accumulate." The use of Ma Jiesan was of great significance in surgery, so that patients could not suffer from severe pain, and it also laid the foundation for the development of traditional Chinese medicine surgery. With Ma Jiesan, Hua Tuo was able to perform complex surgeries such as laparotomy. Under the medical conditions of the time, it was a pioneering achievement and far ahead of the world.

Lead and mercury mixtures are commonly used in ancient alchemy. Lead, a genus of metals, is heavy and soft, with a silver-gray color. It is soft in nature and has good ductility. It is often seen in smelting and casting, and the ancients also used its tools. However, lead is poisonous. If it is touched or eaten for a long time, it will definitely harm the body.
Mercury, commonly known as mercury, is a liquid metal at room temperature. It is white as silver, flows like water, and has a metallic luster. It is heavy in quality, volatile, and the gas it exudes is also toxic. Mercury is active in nature and can form amalgam with many metals.
As for the mixture of lead and mercury, the ancients thought that it could become an elixir and serve it for longevity. However, I don't know that both are poisonous, and if you take them, you will not live long, but you will lose your life. Lead-mercury mixtures, in the nature of chemistry, combine the two, or produce various compounds, and their properties are also complex and changeable.
The application of lead-mercury mixtures in alchemy has been refined by burning and other methods. Based on lead and mercury, supplemented by other things, in a pill furnace, refined by water and fire. The ancients believed that this process can change the properties of lead and mercury and become a miraculous pill. However, this is all out of imagination, and there is no scientific evidence. The things made by lead-mercury mixtures are mostly highly toxic, and if they enter the body, they will mess up qi and blood, damage the viscera, and cause great harm. Although the ancient method of alchemy may have its subtlety, the cognition of lead-mercury mixture is actually limited by the knowledge of the time, and it is not clear how toxic it is.

Lead and mercury are commonly used in ancient alchemy. Lead is heavy in nature and heavy in quality. It is blue and gray in color and has certain ductility at room temperature. Its chemical properties are relatively stable, and it can also react chemically when it encounters strong acids and strong oxidants. If it meets dilute nitric acid, it will be transformed into lead nitrate and nitric oxide. The formula is: $3Pb + 8HNO_ {3} (dilute) = 3Pb (NO_ {3}) _ {2} + 2NO ↑ + 4H_ {2} O $. Lead can be oxidized at high temperature to form lead oxide, with a yellow-brown color.
Mercury is liquid at room temperature, with silver flickering, commonly known as mercury. It is volatile and the vapor is toxic. The chemical activity of mercury is slightly stronger than that of lead, and it can form amalgam with a variety of metals. In case of sulfur, even at room temperature, it can quickly combine to form mercury sulfide. This is the principle of detoxification, which should be as follows: $Hg + S = HgS $. When mercury is heated, it can interact with oxygen to produce mercury oxide, and after reheating, mercury oxide can be divided into mercury and oxygen.
Alchemists often use lead and mercury as the basis to refine the medicine of longevity. However, although the properties of lead and mercury have wonderful chemical changes, they are often toxic, and if taken by mistake, it will harm life. Therefore, when using lead and mercury, it is necessary to understand its nature and be careful to prevent unexpected disasters.

The sea serpent, the spirit of the sea, often appears in fantastical scenes, which are called mirages by the world. The method of its synthesis requires the symmetry of yin and yang in heaven and earth. When the sea qi and the sun are at odds, and the yin and yang are harmonized, there is an image of a mirage. This may involve the gathering and dispersing of qi, and the derivation of light. The sea qi is clear and floating, and the sun is fierce and bright. When the two meet, the qi condenses and gathers, like threads intertwined, and gradually becomes an illusion. If it is a city on the platform, a figure on a cart or horse, it is lifelike. This is not for human beings, but is a wonderful method of nature in heaven and earth.
The pheasant, the bird of the mountains, but the way of synthesis is quite mysterious. Ancient alchemists have clouds, take the spirit of the pheasant, supplement it with various spiritual herbs and elixirs, and refine it with alchemy furnace charcoal fire. The fire in the furnace needs to be delicately controlled, and the fire of civil and military alternates, which lasts for a long time, or the essence can be obtained. There is also a saying that at a specific time, such as the night of the full moon, when the spiritual energy of heaven and earth is full, place the pheasant in the place where the spiritual energy gathers, and use a spell to induce it to absorb the essence of heaven and earth, or to achieve strange changes. However, these methods all require extremely high cultivation levels, and the spiritual herbs and elixirs involved are difficult to find in the world, so ordinary people cannot do it.
There is another dialect that says that if you want to merge the sea serpent and the pheasant, when the mountains and seas meet, choose a place where the spiritual energy is extremely strong. When the sea fog fills and the sun first penetrates, first use the method to induce the mirage, so that it gathers and does not disperse, and takes shape in front of you. Then use the blood of the pheasant to drop into the mirage, and at the same time pronounce a specific spell to reconcile the nature of the two. Then use the spiritual energy of heaven and earth as a medium, so that the two can blend with each other, or they can become extraordinary things. However, this process is dangerous and abnormal, and there is a slight mistake. Not only will it fail, but it will lead to the backlash of the spiritual energy. Therefore, those who are not wise and brave and have profound spells will not dare to try it lightly.

Mercury is a highly toxic substance, mixed with medicinal pills, and its harm is endless. Throughout the ages, many people have suffered physical and mental damage and even lost their lives due to taking medicinal pills containing mercury. People who refine pills must not mix mercury into medicinal pills. This is a matter of human life and needs to be cautious.
As for lead, there are also many points to pay attention to when storing and transporting it. Lead is heavy and soft, and it is easy to react with other things. The storage place should be dry and cool, not humid, otherwise lead is easy to rust and corrode, affecting its quality. And lead should not be adjacent to acidic substances. When the two meet, there will be a chemical reaction, causing lead to deteriorate.
When transporting, the package must be tight to prevent lead from being exposed. It is soft. If it is not packaged properly, it will be bumped and collided during transportation, and it is easy to deform and damage. And the person handling it should be careful not to treat it rudely, so as not to break and scatter the lead blocks.
Furthermore, lead is toxic to a certain extent. Although it is not as strong as mercury, it should not be ignored. During storage and transportation, if lead powder drifts in the air, it will be inhaled into the body for a long time, and it will hurt the body. Therefore, the operator should wear protective objects such as masks to avoid lead poisoning. In short, the storage and transportation of lead requires all-round attention, and there must be no slack in order to ensure the safety and quality of lead.