What are the main uses of TFE?

In "Tiangong Kaiwu", there are three main uses for fire wells in Sichuan.

One of them is to boil salt. The production of salt from wells in Shudi relies a lot on fire wells. In the past, when salt was boiled, firewood cost a huge sum of money, and mountains and forests were cut down, salt was as expensive as gold. From the fire well, salt was boiled over its fire, which was twice as effective with half the effort. "Tiangong Kaiwu" says: "There is a fire well in Xichuan, and it is very strange. The well is actually cold water, and there is absolutely no fire, but it is cut open with long bamboo to remove the knots, and the lacquered cloth is sewn together. One end is inserted into the bottom of the well, and the top is curved. The mouth is tightened to the navel of the kettle, and the brine water is injected into the kettle. I can only see the fire drying, and the water is boiling." The fire in the fire well caused the cost of boiling Salt is needed for people's livelihood. The well boils salt, which also stabilizes the price of salt, benefiting all people.

Second, the use of lighting. In ancient times, lighting relied on grease and candles, which was expensive and inconvenient. The fire in the well can be used for lighting after being skillfully guided. In people near the well, bamboo pipes are used to guide gas, which is introduced into the room, and the lighting is bright and long-lasting. Compared with traditional lighting materials, it is very convenient. Although it is not as popular as electric lamps in later generations, in some areas, it brings a lot of convenience to people's lives, and it is smoother to work and read at night.

Third, heating and keeping out the cold. In winter in Shu, it is sometimes wet and cold. The fire from the well can be used for heating. Set up a stove in the room to introduce fire and warm the room. Although "Tiangong Kaiwu" does not elaborate on the details of heating, it is common sense that the hot topic gas of the fire well, after proper treatment, can drive away the severe cold for the people in winter and make life more comfortable. The three uses of the fire well are closely related to people's livelihood, which has far-reaching impact on the production and life of the people in Shu, and is also a model for the application of ancient science and technology.

What are the physical properties of TFE?

The physical properties of tetradeuterium ethane are as follows:

Looking at its color, pure tetradeuterium ethane, colorless and transparent, like clear water, without the disturbance of variegated colors, clear and clear. Smell its smell, it has a special smell, but it is not pungent and intolerable. Its taste is still mild and can be detected in a specific environment.

In terms of its physical state, at room temperature and pressure, tetradeuterium ethane is in a liquid state, with a uniform texture and free flow. It is like a smart fluid and can change according to the shape of the container. Observing its density, compared to water, it is slightly lighter. If tetradeuterium ethane is poured into water, it can be seen that it floats on the water surface, and the two are distinct. < Br >
Furthermore, its boiling point has a fixed number. Under standard atmospheric pressure, the boiling point of tetradeuterium ethane is about a specific value. When the temperature gradually rises to the boiling point, it can be seen that it gradually changes from liquid to gaseous state and turns into curling steam. Its melting point is also a specific value. When the ambient temperature drops below the melting point, the liquid tetradeuterium ethane that originally flowed will slowly solidify, transform into a solid state, and have a solid texture.

The solubility of tetradeuterium ethane also has characteristics. In organic solvents, more soluble ones, such as common ethanol, ether, etc., can be mixed with it and mixed into one; however, in water, it is difficult to dissolve. The two meet, separate from each other, and do not mix. < Br >
And tetradeuterium ethane is flammable. Under suitable conditions, when exposed to an open flame or hot topic, it will burn rapidly, releasing considerable energy. When burning, there may be flames and flashing light. In addition, its volatility is also considerable. In an open environment, after a period of time, it can be seen that its amount has decreased, all due to volatilization.

What are the chemical properties of TFE?

Carbon tetrachloride is a colorless and clear liquid with a special odor and is volatile. Its chemical properties are quite stable, and under normal conditions, it does not react with acids and bases.

Carbon tetrachloride has good organic solvent properties and can dissolve many organic substances, such as oils, resins, rubbers, etc. This property makes it widely used in industrial fields, often as an extractant, degreasing agent and fire extinguishing agent.

However, carbon tetrachloride also has certain dangers. First, it is toxic. If inhaled or exposed to the skin, it will cause damage to the nervous system, liver and other organs. Second, carbon tetrachloride will decompose at high temperatures or in the event of open flames to produce highly toxic phosgene and other gases.

In chemical reactions, carbon tetrachloride can participate in certain substitution reactions. For example, under the action of a specific catalyst, the chlorine atom in carbon tetrachloride can be replaced by other atoms or atomic groups. However, such reactions usually require specific reaction conditions and catalysts to proceed smoothly.

Furthermore, the chemical stability of carbon tetrachloride comes from its molecular structure. Its molecule is formed by a covalent bond between one carbon atom and four chlorine atoms. This structure makes carbon tetrachloride molecules relatively stable and less prone to spontaneous chemical reactions. However, under the influence of specific external conditions, such as high temperature, light or the presence of a specific catalyst, its chemical stability will be broken, which will lead to chemical reactions.

What are the precautions for TFE in the production process?

The fourth fire is a rare and large thing from heaven and earth. In the process of creating a divine object, you need to pay attention to the general things.

First, the place is very important. It is necessary to create a remote and abundant place, which avoids people and prevents the fire from exposing others, and can also protect the fire from damage. And the earth can help the fusion of fire-like materials and improve the success rate of the fire.

Second, the control of fire needs to be subtle. The fourth fire is intense and powerful, and if you are not careful, you will lose control. The artist uses profound skills to carefully control the fire's degree and heat. At the beginning, it is advisable to combine and integrate the materials. According to the characteristics of the material, it is necessary to increase or decrease the temperature, and strive for the blending of all ingredients to obtain exquisite products.

Third, the selection and matching of materials should not be lost. For different purposes, the required materials are different. The material is carefully selected and the product is of high quality. And the matching of materials also has a high ratio. If the proportion is lost, there is no help from the fire, and it will also become a good product.

Fourth, the method is indispensable to the person. In this way, the whole mind of the person is focused on the fire material, which is easy to be disturbed by the outside world. In this case, there is a powerful way to guard the surroundings to prevent others from breaking into the wall, and to be able to meet the person in the world, offer a helping hand, and keep it safe.

Fifth, the state of mind of the person is particularly important. The face of the big four fires, the peace of the heart, does not depend on its prestige. If the heart is impatient, it can be used to fine-control the fire and match the materials. Only the state of mind can be used to make fire and achieve extraordinary work.

What are the effects of TFE on the environment and human health?

The four fires are the most peculiar and powerful things in heaven and earth. Such a fire is the shadow of human health in the environment, and it is deep.

As far as the environment is concerned, if the four fires exist in the world, their high flames can make the surrounding area unhealthy. Intense fires can scorch the land, and the vegetation cannot survive, and the water source may be evaporated due to it, causing the balance of life to be greatly disrupted. In the mountains and forests, once the fire rages, there is a sea of fire in an instant, and the birds can escape and escape, and the biological diversity is low. And the energy released by the fire, or the essence of heaven and earth, can lead to the illusion of lightning, causing natural damage, and the landscape of mountains and rivers can also be changed.

As for human health, the four fires are different. As far as cultivators are concerned, if they can conquer the fire and use their power to transform themselves, they can greatly improve their cultivation. However, if they are not careful, the fire will backfire, and they will burn their own body, and their organs will be affected. They will have great skills and heavy lives. And for ordinary people, close to the fire, the height is enough to burn the muscles and break the surface of the person. Inhaling the poison generated by the fire, it will affect the lungs, causing breathing difficulties, coughing and hemoptysis, etc. During the period of being affected by the shadow of the fire, people will lose their blood, and the blood will be reversed. Various diseases will breed, which will reduce the cost.

Of course, the four fires contain great power, but the destruction of the environment will cause people to lose their health. Only by controlling and introducing them in an appropriate way can they prevent them from falling into the world.