1,2-Dichloro-3-ethylene-6-cyanobenzene, although not explicitly described in Tiangongkai, it has a wide range of uses based on current chemical knowledge and chemical applications.
In the field of organic synthesis, it can be used as a key intermediate. Because the molecule is rich in active functional groups such as chlorine atoms, carbon-carbon double bonds and cyano groups, chemists can convert it into organic compounds with more complex structures and more specific functions through various chemical reactions, such as nucleophilic substitution and addition. For example, it can be used to synthesize materials with special optoelectronic properties, which are of great significance in cutting-edge electronic fields such as organic Light Emitting Diodes (OLEDs) and solar cells, or to prepare bioactive pharmaceutical intermediates, laying the foundation for innovative drug development.
In the field of materials science, 1,2-dichloro-3-ethylene-6-cyanobenzene can be polymerized to form high-performance polymer materials. These polymers may have excellent chemical stability, thermal stability and mechanical properties, and can be used in high-end fields such as aerospace and automotive manufacturing as structural components or protective coatings. For example, in aerospace equipment, materials are required to withstand extreme environments, and this polymer material may meet the demand to ensure the safe and stable operation of the equipment.
In the field of agricultural chemicals, new pesticides can be developed from this raw material. Due to the existence of cyanyl and chlorine atoms, the product may be given good insecticidal and bactericidal activities, and may have higher selectivity and lower environmental toxicity than traditional pesticides, which is of great benefit to the sustainable development of agriculture. It can effectively control pests and diseases while reducing the adverse impact on the ecological environment.

1% 2C2-difluoro-3-chloro-6-benzylnaphthalene, which is an organic compound. Its physical properties are as follows:
Looking at its morphology, under normal temperature and pressure, it is mostly in a solid state. Due to the strong intermolecular force, it has a relatively regular arrangement.
When it comes to the melting point, in view of the specific molecular structure of the compound, the intermolecular force is moderate, and the melting point is about a certain temperature range. The specific value varies according to factors such as purity, but it is roughly within a certain range. This is because the molecular interaction requires specific energy to overcome, so as to realize the transformation of solid state to liquid state.
In terms of boiling point, its boiling point is also higher. Due to the existence of interactions such as van der Waals forces between molecules, more energy is required to make the molecule break free from the liquid phase and escape into the gas phase.
In terms of solubility, because its molecular structure contains hydrophobic hydrocarbons and fluorine, chlorine and other atoms with certain polarity, it can have a certain solubility in organic solvents such as toluene and dichloromethane. Due to the principle of similar miscibility, the organic solvent can form a moderate interaction with the compound molecule; while the solubility in water is very small, and edge water is a strong polar solvent, and the interaction with the compound molecule is weak.
In addition, the density of the compound may vary compared with water, depending on factors such as its molecular weight and the degree of molecular accumulation.
Furthermore, its appearance may be slightly different due to purity and crystal form, etc. When pure, it may be a white to slightly yellow solid with a certain luster.

1% 2C2-dichloro-3-ene-6-cyanopyridine This material is not solid. Looking at its structure, it contains dichloro, chlorine, and halogen elements, which are active and can lead to molecular activity. Ethylenically bonded, unsaturated bonds, rich in electrons, easy to be attacked by electrophilic reagents, resulting in addition, polymerization and other reactions. Cyanyl groups are also active, hydrolyzed, reduced, etc. Although there is a pyridine ring, it has certain aromaticity and stability. However, when viewed as a whole, it is more active than general stable organic compounds due to the influence of chlorine, alkene, and cyano groups. If it is in a suitable environment, it is easy to react when encountering specific reagents, so the physical properties are not stable.

The preparation method of 1% 2C2-dibromo-3-chloro-6-nitrobenzene is not detailed in "Tiangong Kaiwu", but it can be deduced from common chemical materials and ancient methods.
Ancient halides, often reacted with halides and acids to obtain hydrogen halides, and then used for halogenation reactions. To obtain 1% 2C2-dibromo-3-chloro-6-nitrobenzene, you can first use benzene as the base. Although benzene was not easy to see in ancient times, it can be obtained by dry distillation of turpentine.
First take benzene, and heat it with saltpeter and sulfuric acid. These two are also available in ancient times. Sulfuric acid can be obtained by strong heating of green alum (FeSO· 7H ² O), and saltpeter is a common mineral. Sulfuric acid reacts with saltpeter to produce nitric acid, nitric acid and benzene under appropriate conditions, with iron powder as catalyst, nitrobenzene can be obtained.
After obtaining nitrobenzene, bromine and chlorine are to be introduced. Bromine, which was extracted from brine in ancient times, is concentrated in brine, and oxidized with a strong oxidant such as MnO ² (the main component of pyrolusite) to obtain bromine. React with bromine and nitrobenzene, and control the conditions, so that bromine can replace hydrogen at a specific position in the benzene ring.
As for the introduction of chlorine, HCl gas can be prepared first, which can be obtained by co-heating table salt Under appropriate conditions, HCl gas reacts with the benzene ring containing bromine and nitro group under the action of catalyst, so that the chlorine atom replaces the hydrogen atom at a specific position, and finally obtains 1% 2C2-dibromo-3-chloro-6-nitrobenzene. Although the steps are complicated, the ancient materials and methods are also feasible.

When storing and transporting 1% 2C2-dichloro-3-ene-6-cyanobenzene, there are many precautions. This is a chemical substance with special properties and needs to be disposed of strictly.
Safety is the first priority. Because of its toxicity and irritation, contact can cause human damage. When storing and transporting, be sure to ensure that the operator is well protected, wearing protective clothing, protective gloves and masks to prevent contact with the skin and respiratory tract. Work with good ventilation. If there is any leakage, leave the scene quickly and go to a safe place. Dispose of it according to emergency procedures.
This substance may be harmful to the environment, and it should not be leaked to the environment during storage and transportation. Store in an airtight container in a dry, cool and ventilated place, away from fire and heat sources, and away from direct sunlight. Due to temperature, light or its reaction and decomposition.
Furthermore, it is chemically active and cannot be mixed with oxidants, reducing agents, acids, alkalis, etc., to prevent violent reactions, fires, explosions and other accidents. When handling, pack lightly and unload lightly to avoid package damage.
In addition, label identification is essential. Containers should clearly indicate the name of the chemical, nature, hazards, emergency treatment methods and other information for identification and emergency response. At the same time, make storage and transportation records, including storage time, quantity, flow direction, etc., for traceability.
In conclusion, the storage and transportation of 1% 2C2-dichloro-3-ene-6-cyanobenzene requires high attention to safety, environment, chemical compatibility, and labeling records to ensure the safety of personnel and the environment.