Benzene 1 Fluoro 2 Iodo

Mercury is a highly toxic metal. It is active and liquid at room temperature. It has volatile properties. Many of its chemical properties are unique and significant.
Mercury can form amalgams with many metals, which is a major property of mercury. When mixed with sodium, it forms a sodium amalgam. This process is similar to the fusion of different materials to form new substances. This amalgam is often used as a reducing agent and plays a key role in many chemical reactions. It plays an important role in the stage of chemical reactions, promoting the smooth progress of the reaction.
Mercury can react with oxygen. When heated, mercury and oxygen slowly combine to form mercury oxide. This reaction is like a wonderful transformation. Mercury combines with oxygen under specific conditions, and its form and properties change. Mercury oxide also has certain chemical activity, and can be decomposed back into mercury and oxygen under appropriate conditions, just like a reversible cycle.
Mercury can also react rapidly with sulfur elemental matter. When the two meet, they immediately combine into mercury sulfide. Mercury sulfide is stable in nature and has a bright color. It is often used as a pigment. This reaction is like a magical color change, which not only realizes material transformation, but also brings color to life.
In compounds, the common valence states of mercury are + 1 and + 2. The properties of different valence mercury compounds vary greatly. Mercury compounds with + 2 valence are common and rich in chemical properties, and have applications in many chemical fields.
Mercury compounds such as mercury chloride are highly toxic, but they have been used in specific chemical analysis and pharmaceutical fields. However, due to their toxic hazards, their use is now extremely cautious. Mercury nitrate is also a common mercury compound, which is oxidizing and plays an important role in specific chemical reactions.
Mercury has a rich and diverse chemical properties and has a long history of research and application in the chemical field. However, due to its toxicity, it must be used with caution to ensure safety.

The river water is the softest and strongest thing in the world. Watching the river galloping and gushing, its nature is good, it flows with the trend, and it is circuitous when it encounters obstacles, but it can eventually overcome everything and belong to the sea. This softness is also, with a weak posture, it can overcome strength. As the saying goes, "The world is not softer than water, and the strong cannot win".
Furthermore, the river water is inclusive. Whether it is a trickle or a majestic mountain flood, it can be absorbed in it, mixed but not turbid, harmonious and different. All kinds of sediment and sundries are contained in it, and their own quality remains unchanged.
And gravel is solid and heavy, with a strong and stable nature. Its texture is hard, it can resist the impact of the wind and rain, and it can resist the grinding of the river water initialization. After years, although the surface may be worn, the essence is difficult to move. At the top of the mountain, it can become the foundation of the peaks and mountains; in the river, it can stabilize the trend of water flow.
Stones and gravel have a constant nature, do not follow the current, do not move their place. Even though the surrounding environment changes, it sticks to its position and is not moved by external objects. In contrast to the agility of the river, the stability of the stone is like the yin and yang poles, which are opposed to each other and interdependent, forming a wonderful scene between heaven and earth.
The river water, with its softness, capacity and movement, nourishes the earth and nurtures all things; the stone gravel, with its rigidity, stability and stability, lays the foundation and protects the soil and water. The nature of the two, complementing each other, constitutes the state of nature in the world, is an indispensable element between heaven and earth, and is also a mirror for our generation to see things clearly.

In "Tiangong Kaiwu", the main uses of Jiang (suspected to be "pulp") and cane are quite extensive.
Pulp was used in many ways in ancient times. In the field of textile printing and dyeing, pulp is often used to pretreat fabrics. Through the sizing process, the surface of the fabric can be smoother and crisper, and its texture and appearance can be improved. In subsequent dyeing or embroidery processes, it is easier to operate, the dyeing is more uniform, and the embroidery thread can be better attached, adding the aesthetics and practicality of the fabric. In the papermaking process, pulp is also indispensable. As a key raw material for papermaking, it has undergone a series of complex treatments to become the fiber base of paper. Pulps of different textures and characteristics can be used to produce paper with various functions, such as writing paper, packaging paper, etc., which has greatly promoted the spread and retention of culture.
And cane, the primary use is sugar production. "Tiangong Kaiwu" details the exquisite process of extracting sugar from sugarcane to make different kinds of sugar. First, sugarcane is juiced, and after clarification, evaporation, crystallization and other steps, it can be made into brown sugar, white sugar, etc. Sugar not only satisfies people's pursuit of sweetness, enriches the taste of diet, but also is an important trade commodity in ancient times, promoting commercial development. In addition, bagasse also has wonders, as it can be used as a fuel to provide heat for daily life or industrial production, alleviating the problem of fuel shortage to a certain extent; it can also be used for manual production such as weaving to make practical items such as bagasse mats, giving full play to its value.

The synthetic method of mercury and cinnabar in "Tiangong Kaiwu" is recorded as follows:
Mercury, also known as mercury in ancient times. Cinnabar, that is, mercury sulfide. The synthesis method mainly includes the following ways.
One is to combine sulfur with mercury. Grind the pure sulfur into a fine powder, place it in a suitable container, and then add an appropriate amount of mercury. Then, heat it slowly over a slow fire. During the heating process, it is necessary to constantly stir to make the sulfur fully contact with mercury. As the temperature rises, sulfur and mercury chemically react, and gradually combine to form mercury sulfide. This process requires careful control of the temperature and reaction time. If the temperature is too urgent, mercury will be easily volatilized and lost, and if the temperature is insufficient, the synthesis reaction will be incomplete.
Second, in nature, cinnabar is often hidden in ore veins. When people mine cinnabar, they can obtain natural cinnabar. However, natural cinnabar is often mixed with impurities, which need to be refined and purified to obtain pure cinnabar. The refining method first crushes the ore of the mined cinnabar, and then washes it with water to remove impurities such as sediment. After that, sublimation and other methods are used to further purify the cinnabar to achieve a higher purity.
The method of synthesizing cinnabar, whether it is the combination of sulfur and mercury or the refining of natural cinnabar, requires craftsmen to have exquisite skills and rich experience in order to produce high-quality cinnabar for medicinal purposes, pigments and many other uses.

Cannons should be stored in the environment, and people should pay attention to the following general things:
First, they should be stored in good conditions. The place where they are placed should be dry and smooth, so as to prevent the damage of corrosion caused by the moisture of the cannon. And it is necessary to avoid fire sources, coal sources, and other flammable and explosive materials to avoid danger due to accidents. The place should also have perfect prevention and application, which can withstand rain, earthquakes and other weather invasions.
Second, the distribution should be placed in an orderly manner. Cannons of different types and styles should be properly arranged in different areas, so that they can be used for identification, and the same can be avoided from being confused, resulting in the use of raw materials.
Third, it is reasonable to use. On the way to delivery, it is advisable to use the right tools, and they are fixed properly, so that there are few shocks and collisions, so as to avoid the damage caused by the strong shaking of the gun.
Fourth, regular inspection. If it is not stored or stored in the front and middle, it is necessary to check the gun regularly. Check whether the external defects, shapes, and fuses and other components are normal. If it is not used, it is not handled properly, so as to ensure the good performance of the gun and use it safely and reliably.
Fifth, abide by the rules and regulations. Those who work hard must abide by the rules and regulations, and do not exceed the rules and regulations and do not violate the rules and regulations. All operations are carried out according to the standard process, so as to ensure the safety of the gun during the whole process.