THIOPHENE ETHANOL

The main uses of arsenic recorded in "Tiangong Kaiwu" are as follows:
First, it is used in agriculture to remove pests.
"Arsenic is a letter stone, and the name of the living is yellow, and the name of the refiner is arsenic. Arsenic is the strongest, and people die when they take one dollar. Then it is used to treat borers and kill insects, so farmers compete for it." It can be seen that although arsenic is highly toxic, it has unique effects in agricultural deworming. Sprinkling a small amount of arsenic in the field can make it difficult for pests such as borers to survive, ensure the growth of crops, and improve yields. This is the use of arsenic toxicity to control pests that destroy crops.
Second, it is also used in the field of medicine. However, due to the strong toxicity of arsenic, extreme caution is required when using it. Ancient healers were well aware of its characteristics and would strictly control the dose for the treatment of some special diseases. For skin diseases such as scabies, a very small amount of arsenic was mixed into the medicine to inhibit the bacteria by its toxicity and achieve the purpose of treatment. However, during the medication process, once the dose is not properly controlled, it is easy to cause serious consequences. Therefore, non-experienced healers dare not use it easily.
Third, it plays a role in metal smelting. In some metal mining and metallurgy processes, arsenic can be used to remove impurities. Some ores are associated with impurities, which affect the purity and quality of metals. Adding an appropriate amount of arsenic can react with impurities, help separate impurities, and improve the quality of metal smelting. For example, in the smelting of some lead-zinc ores, arsenic can effectively remove specific impurities, making the refined lead and zinc more pure and meeting the requirements for use.

Where mercury is used, it should be used in a special way. Where mercury is used, it is the gold of the liquid, flowing freely under normal conditions, white and luminous. Its density is too large, and the evaporation is poisonous, so it cannot be ignored. The "Heavenly Works" said: "Where cinnabar and mercury are the last streams of Dan sand, the essence of which has been released. If mercury is made, stop the cinnabar from being crushed, and fill the mouth with charcoal chips, and cut pieces as large as a stone, and place them on it, and seal the gap, so that it does not penetrate." This is the importance of mercury in the ancient method. The use of mercury was mostly used in Dan in ancient times, and the alchemists used it to prolong the age, but there were many cases of poisoning. In today's world, mercury is also used in chemical engineering, watches, etc., such as high temperature, blood pressure, etc., all of which have the properties of their liquid and low temperature.
, heavy and soft, blue and gray. Its melting is not high, easy to form. "Tiangong Wuwu": "Where you make a stone, you use mountain grass to make ten catties, and you can get ten catties of raw material, and you can see through the mountain cave, and you can get up short. One person is standing next to the drum, and the dross will first melt, and the dross will float on the surface, so it is urgent to copy it, and it is good to use it below." The nature of the stone, corrosion resistance, was often used as a container in ancient times, and was also used in the stone. Nowadays, it is mostly used in the manufacture of storage ponds. Due to its good durability and chemical quality, it can be stored and released.

<, hard and brittle, with a white and slight color. The melting speed of gold is low, and it is often used as an alloy addition in metallurgy. "Tiangong" did not describe its metallurgy, but it has its own use in the compatibility of gold. Its addition to the alloy can increase the hardness, wear resistance and corrosion resistance. Such as the alloy, the addition of gold can make the word clear and wear-resistant.

The other is the alloy, and the color is bright. Its melting speed is lower, and it is easy to melt. " Tiangong Wuwu says: "All utensils must first be melted with white charcoal fire, cast into it, formed into thin slices, and then cut into molds." Utensils were widely used in ancient times, and food utensils and wine utensils were mostly used. Because of their relative nature, they are not easy to cause food to be disintegrated and reversed. However, due to the toxicity of food, utensils are rarely used by eaters, but they still have a place in industrial fields and other fields.

Arsenic, or arsenic trioxide, is chemically unstable.
Arsenic is a white, odorless crystalline powder at room temperature and pressure. It will react when exposed to acids, such as when interacting with hydrochloric acid to produce arsenic chloride and other substances. In the air, arsenic will react slowly with certain gas components, especially in high humidity environments, and will gradually undergo some changes.
From many examples in ancient times, it can be seen that its chemical properties are "active". In some cases recorded in ancient books, when arsenic is mixed into food or drink, it will interact with its components. Although sometimes the appearance changes are not significant, a chemical reaction has actually occurred. For example, adding arsenic to some fruit juices rich in organic acids will quietly change its chemical composition.
Furthermore, if arsenic meets a strong reducing agent, a redox reaction will occur, and the valence of arsenic will change, resulting in the formation of different chemical substances. And arsenic can dissolve in alkaline solutions, forming corresponding salts in alkaline environments, which also shows that its chemical properties are not stable, but will change due to changes in the external chemical environment.
It can be seen from many phenomena and reactions that the chemical properties of arsenic are not stable, but will undergo various chemical reactions with other substances under different conditions.

One of them is that the raw material is of paramount importance. A good foundation can only be made sharp if it is well-placed and soft. Those who need to be well-known in mountains and rivers, and those who need to be well-refined, such as those in Kunwu, are often hard and often hard, but they are not easy to use. There is also cold, cold and cold, and the cold is pressing, so the profit ratio is high.
The second is the technology of smelting and seeking heat. Using refined charcoal fuel, the material is melted into a liquid on a fierce fire. In this case, the smelting needs to be controlled by the heat. The liquid is cooked on a large fire, and it is brittle and easy to fold; the fire is small and not melted, so it can be formed. When the liquid is formed, or it is inserted into a carefully made mold, or it is beaten while it is reversed. When it is beaten, the strength and performance are all studied. One by one, remove the quality, so that the quality is uniform and the quality is increased.
Third, quenching is the first step. When the blank is formed, while it is high, it is quickly immersed in a specific liquid, such as water, oil, etc. The benefits of water quenching, oil quenching is better. During quenching, the liquid of the body is connected instantaneously, and the water vapor rises, and the hardness and durability of the body depend on this.
Fourth, the grinding process is indispensable. Grind the shape with coarse stone to remove its burrs; grind the stone with fine grinding to make the body as smooth as a stone. Then use special materials to light, so that the light is shining, and the cold light is pressing. And when polishing the stone, it needs to be rebalanced, so that the hand can be held, the weight is appropriate, and the dance is free.
Fifth, the work of the sheath should not be ignored. The handle needs to be made of wood, such as sandalwood, rosewood, etc., carefully carved to make it fit the palm of the hand and hold it comfortably. The sheath is made of hardwood, leather and other materials, and is made of gold beads, which is more beautiful.
In this case, it is a delicate technique, and the methods are applied to each other, and only when they are meticulous can they be made to cut like mud and immortal.

First of all, the nature of Dan sand is special, and the place where it is hidden is dry and well-connected. If it is a place where the tide is, it is vulnerable to water intrusion, resulting in its good quality. As the "Notes on Materia Medica" says: "No stone should be stoned, but Dan sand is especially bad." Therefore, if it is a high dry stone, it should be filled in a crock pot or a porcelain bottle, and its mouth should be closed to prevent it from being connected with the external tide, and it is a good strategy.
Second of all, it should be well-preserved. Dan sand is brittle, if the road is bumpy and strong, it may be broken, and it will be used in its shadow.
In addition, fire prevention is also an important matter. Dansha is a non-flammable thing, and its properties may be changed in case of high temperature. If it is hidden, it must not be close to the source of fire. Gu Yun: "Dansha is vulnerable to fire, and its effectiveness is easily lost." It can be stored in daily use, and it can also be stored in a stove and fire.
In addition, Dansha is poisonous. If it is not hidden or hidden, it must be prevented from leaking. Once it is released, if people and animals around it eat or inhale it, it will be damaged. If there is an unfortunate leakage, it should be cleaned up immediately, covered with soil, and buried deep in a remote place, so as not to allow the poison to escape and survive.

In this way, it is essential to hide the sand, dry, proper, fire prevention, and anti-pollution. In this way, the safety of the product of Dan sand can be guaranteed, and it can be used in general purposes such as medicine and medicine, so that it is effective.