1,1,1-trifluoro-2-iodoethane

"Tiangong Kaiwu" reports that the main uses of the black gold cat produced in the Three Gorges area are very extensive.
The black gold cat is sensitive, agile, and can travel freely between mountains and forests. Its primary use is to guard the barn. In the past, barns were often disturbed by rats, causing serious food damage. The black gold cat has outstanding ability to catch mice. With its keen audio-visual and rapid skills, it can effectively curb the rat infestation, keep the grain in the barn safe, and contribute a lot to the food reserves of people's lives.
In addition, the fur of the black gold cat is also valuable. Its fur is fine and unique in color. It can be tanned and processed by skilled craftsmen to make fine fur clothes. This fur coat is not only good for keeping warm, but also beautiful and elegant. It was favored by dignitaries in ancient times. It is often used as a symbol of status and status, and occupies a certain position in the field of clothing production.
In addition, the Wujin cat is also of great significance in the maintenance of ecological balance. It preys on rodents and insects in the forest, which can regulate the population of such creatures and prevent them from overmultiplying and destroying the vegetation ecology of the mountain forest. Maintaining the balance of mountain and forest ecology is beneficial to the surrounding soil and water conservation, climate regulation and other aspects, and indirectly affects the production and living environment of the local people.
It can be seen that the Wujin cat plays an indispensable role in the people's livelihood, economy and ecology of the Three Gorges area.

The stone of the three gods, its physical rationality is marvelous. The stone is carved from hard stone, which is dense and easy to move, and can be invaded by the moon and frost without being damaged. Its density is large and its specific gravity is heavy. Ordinary people make it easy to move, which recognizes its sense of weight.
The stone is made of high-quality materials, such as bluestone or flower rock. This stone has good wear resistance. Even if it is placed outside for a long time, it will be exposed to rain and rain during the day. The surface is also slowly worn and can maintain its shape for a long time. Its weather resistance is excellent, and it can not be alternated between cold and summer, and can be transformed. It can exist in different weather conditions.
In addition, the quality of the stone is consistent with the characteristics of the stone itself. Under the exposure of summer, the surface degree increases, but the overall rate of rise is relatively slow; in winter cold invasion, its decline is not rapid, and it has a certain protection ability. And the quality of the stone is very weak, similar to the color of the stone, in natural phenomena such as lightning, it can protect itself from the damage of the flow.
The color of the stone, due to the quality of the stone, or the ancient lime, or the light weight, the passage, the surface is either green moss, or attached to the atmosphere, adding a sense of historical mulberry. In short, the material rationality of the three stones makes it a valuable cultural symbol. Treasures, standing on the moon, the history of history.

The stability of its chemical properties is really an interesting question. According to the records of the ancestors and the ancient books, it has considerable chemical stability under normal conditions.
Looking at its structure, the atoms inside are arranged in an orderly and tight manner, forming a stable framework. This framework gives it the ability to resist the intrusion of external factors, making it difficult for ordinary chemical reagents to break its structure and cause chemical changes.
Furthermore, from the perspective of the environment in which it is located, after years of changes, it can maintain its own shape and properties in nature, and it is rare to see its gratuitous spontaneous variation or decomposition. Although under certain extreme conditions, such as high temperature, strong pressure, and high concentration of special chemical substances, changes in chemical properties may occur, but in the conventional world, the chemical properties of the three insects and two insects are quite stable.
Therefore, it can be determined that in common environments and conditions, the chemical properties of the three insects and two insects are stable, which can maintain its inherent state and properties, and is not easily moved by the outside world.

As recorded in "Tiangong Kaiwu", the method of casting swords is very delicate, and it involves many links of materials, heat, and craftsmanship. Today's discussion on the method of casting and smelting eel bone swords should also follow its principles.
To cast an eel bone sword, the first selection of materials. The bone of the eel must be taken from a specific eel. The eel is suitable for living in clean and deep waters, with clear water quality and no filth contamination, so that the eel bone has a firm quality. When selecting the bone, carefully inspect its texture, it must be uniform and dense, without cracks and defects, before it can be selected.
It is a good material, and the second is a billet. The eel bone is carefully cleaned to remove its impurities, and then slowly baked over a low fire, so that the moisture is gradually lost and the texture becomes firm. When baking, careful care is required. If the heat is too strong, the bone will be easy to burn and brittle, and if the heat is insufficient, the moisture will not be exhausted, which is not conducive to the follow-up process. When the bone is moderately dry and wet, it is carefully carved according to the shape of the sword, and the sword blank is initially formed. This step requires the ingenuity and skills of the craftsman, so that the sword blank has the outline of the sword at the beginning, and the sharp edge will gradually appear.
Then, the key is to quench. Prepare a special quenching liquid, the formula should be secret but not passed on, or it contains the essence of various minerals and herbs. Burn the sword blank to the appropriate heat, the sword body will be red but not melted, and quickly cast In the instant of quenching, water vapor evaporates, and the sword is excited with the liquid phase, making a hissing sound. During this process, the texture of the sword changes due to quenching, and the strength and softness are combined. It has both a strong edge and toughness, and it is not easy to break.
After quenching, it is for grinding. With a delicate grinding stone, from thick to thin, the blade is repeatedly ground. When grinding, the force is uniform and the direction is the same, making the blade more sharp and flickering with cold light. And the sword body is also finely polished, making it smooth like a mirror and warm in texture.
In the casting and smelting of eel bone swords, every step requires the craftsman's full attention and intensive study of craftsmanship in order to achieve a rare sword. It is the crystallization of the wisdom and skills of the ancients, and it is really a treasure of traditional sword casting craftsmanship.

The matter of hiding dragons and transporting dragons is related to the protection and movement of treasures, and both need to be treated with caution.
When hiding dragons, it is the first time to choose a place. It is advisable to choose a secret and safe place to avoid the eyes and ears of others and prevent others from coveting it. The ground is solid and dry. If it is in a humid place, the dragon is easily damaged, and if it is flooded, it will lose its mind. Furthermore, there must be a good way to seal the hiding place, so that the internal and external qi will not be released, so as to keep the dragon qi condensed. However, if it is too tightly sealed, it is also afraid of changes. When it is appropriate to leave a gap, pass its micro-qi to maintain vitality.
As for transporting dragons, there are many considerations. Explore the path first, and be familiar If you encounter a dangerous mountain or river, you should think of a good strategy to pass it, or go around the difficult place, or build a bridge and build a road, so that the dragon can travel smoothly. When you are lucky, you need to choose the right time to avoid the season of wind and rain, which is easy to disturb the dragon body and damage its essence. And the person who transports the dragon must be loyal and reliable, and those who are familiar with techniques. Everyone is coordinated, and the pace is the same, and there is no distraction. If someone is negligent and slack, they will be afraid of disaster.
At the same time, whether it is a hidden dragon or a dragon, they should worship the gods to pray for protection. The ritual of sacrifice should not be taken lightly. Prepare for cleansing sacrifices, and worship devoutly. Ask the gods to bless all things smoothly, and the dragon will be safe. In this way, the hidden dragon can preserve its essence for a long time, and the dragon can be transported smoothly, avoiding accidents, and protecting the dragon and protecting the artifact.