1% 2C2 + - + dioxy + - + 4 + - + river + - + 5 + - + carbonyl indole What is the main degree of use? These four things are involved in "Tiangong Kaiwu", and each has its own use.
The first word is dioxy. Although "Tiangong Kaiwu" does not directly write the name "dioxy", the role of oxygen is looming in the changes of various things. Oxygen is essential for combustion, smelting and other processes. In the book's casting method, metal ore is smelted into pure metal, and fuel is required for combustion and heating. Oxygen supports combustion, so that the fuel can be fully burned, and it can reach high temperature to melt ore and remove impurities to obtain refined gold.
As for the "river" referred to in "4", the book is mostly used for wading in water. The river is the source of irrigation, which is related to farming. The fields depend on the river water to moisturize, and rice and wheat can grow. And the river can be boated, which is the main transportation route. The exchange of materials between the north and the south depends on the river channel, and the transportation of goods by boat, which saves manpower and has a large volume of transportation. It has great contributions to trade and cultural dissemination.
The "carbonyl indole" mentioned in "5", although "Tiangong Kaiwu" does not describe this thing in detail, it is deduced from its chemical properties. Carbonyl indole may have potential uses in dyeing, pharmaceuticals and other processes. Ancient dyeing may use natural substances containing such structures as dyes, which are colored by their special chemical structures. In pharmaceuticals, it may also be used as a raw material for drug processing or participate in the reaction process due to its chemical activity, contributing to drug efficacy.
In short, dioxygen-assisted combustion smelting, river irrigation and transportation, carbonyl indole or dyeing-related pharmaceuticals have important functions in production and life at that time.

1% 2C2 + - + dioxy + - + 4 + - + alkane + - + 5 + - + cyanopyridine are organic compounds, each with unique physical properties.
Dioxy is often colorless and transparent, and has a typical ether odor. It is a liquid at room temperature and pressure. Its boiling point is about 101.1 ° C, and its melting point is -41.4 ° C. It can be miscible with water, alcohol, ether and other solvents. Due to its moderate polarity, it is often used as an excellent solvent and is widely used in organic synthesis and extraction separation.
Alkane is also a colorless and transparent liquid with a special odor. The boiling point is about 34.6 ° C, and the melting point is -116.3 ° C. It is extremely difficult to dissolve in water, but it is easily soluble in organic solvents. Its volatility is very strong, it is a flammable liquid, steam and air can form an explosive mixture, and it is often used as a solvent and reaction intermediate in the chemical industry.
Cyanopyridine, the appearance is white to light yellow crystalline powder, the melting point is about 70-73 ° C, and the boiling point is about 201-204 ° C. Its solubility is different from different solvents, slightly soluble in water, and soluble in organic solvents such as ethanol and ether. Because its molecules contain cyano and pyridine rings, it has unique chemical activity and is widely used in the synthesis of fine chemical products such as medicines, pesticides, and dyes.
These three are of great significance in many fields of the chemical industry. However, due to their different properties, they need to be used according to their characteristics, follow safety regulations, and be properly handled and stored to avoid danger and ensure production safety and efficiency.

1% 2C2 + - + dioxy + - + 4 + - + Jiang + - + 5 + - + aminobenzene What are the chemical properties? I will answer this question in the classical style of "Tiangong Kaiwu".
Dioxides are active in nature and often have the ability to oxidize. In various chemical reactions, they can be filled with oxidants, which can increase their price state. When encountering flammable substances, or assisting in combustion, it can cause violent changes.
As for 4, if it refers to butane and the like, it belongs to the alkane family. The properties are relatively peaceful, and it is mostly gaseous or liquid at room temperature. It is difficult to dissolve in water, but miscible with organic solvents. At high temperatures or in the presence of catalysts, reactions such as cracking and substitution can occur.
Jiang, the special name for this non-chemical substance, if it is considered in terms of river water, it is a fluid mixed with many things, containing various minerals, microorganisms, etc. Its chemical properties vary from region to region and environment, but it is generally neutral or slightly alkaline.
5, the reference is not detailed, if it is a specific organic number, its properties can only be discussed in detail according to its structure.
For aminobenzene, benzenecycline is alkaline because of the amino group. It can form salts with acids, and because the amino group is the power supply group, the electron cloud density of the benzene ring increases. In the electrophilic substitution reaction, the amino o and para-sites are more susceptible to attack by electrophilic reagents, which is more prone to such reactions than benzene. And aminobenzene has certain reductive properties and can be oxidized, and its oxidation products vary according to conditions.
To sum up, the chemical properties of various substances are different, or active, or peaceful, and each shows its own properties in chemical reactions. It is useful in chemical industry, scientific research and other fields.

To make diethylene, tetraene, and pentacyanonaphthalene, the method is as follows:
To make diethylene, the main method is often the method of reduction. In a suitable inverter, the catalytic catalyst, such as carbon, etc., containing alkylene or alkyne raw materials, is mixed in a certain proportion to control the reaction degree and reaction force. Generally, the reaction degree is in the middle of the temperature, such as 10 to 100 degrees Celsius. The reaction force is also reduced to the phase value. When the reaction is added, the catalyst promotes the addition of the atom to the mixture and the catalyst, and then the diethyl compound is obtained.
is taken from the tetraene, and more compounds containing hydrogen are produced. Multiple reactions can be used in synthesis, such as Wittig. First, replace the chemical with phosphorus-containing oil to obtain Wittig, and then make it an aldehyde or ketone reaction. Under the influence of the chemical component, the alkenylation reaction is introduced, and carbon-carbon oil is introduced. Multiple steps of this reaction, ingenious reaction way, with tetraethylenes containing tetraethylenes.
The synthesis of pentacyanonaphthalene is often the starting material of naphthalene. Naphthalene can be substituted first to introduce specific functionalities, such as atoms. In the naphthalene substitution, cyanide, such as cyanide, etc., under the action of suitable solution and catalysis, the nucleus is replaced by the anti-chemical, and the atom is replaced by the cyanide group. Multiple substitutions of the anti-chemical, fine control of the anti-chemical components, so that the cyano group is gradually introduced into the naphthalene to obtain pentacyanonaphthalene.
Where this method is used, it is necessary to control the reverse components, and the raw materials are refined. Only by following the principle of synthesis and operating with heart can the required materials be obtained.

1% 2C2, dioxy, 4, Jiang, 5, and carbonyl naphthalenes need to pay attention to many matters during storage and transportation.
First, it is related to storage. 1% 2C2, dioxy, 4, Jiang, 5, and carbonyl naphthalenes should be stored in a cool, dry and well-ventilated place. Because they are more sensitive to heat and humidity, high temperature and high humidity environments can easily cause their properties to change, affecting quality and stability. 1% 2C2 If heated, or triggers a chemical reaction, causing the composition to change; dioxy in a humid environment, or deteriorated by moisture.
Second, it involves packaging. It must be packaged with suitable packaging materials. 1% 2C2, dioxy, etc., or corrosive, should be used to resist corrosion packaging, such as special plastic containers, glassware, etc., to prevent packaging damage and leakage. 5. Carbonyl naphthalene has strict requirements on packaging sealing, avoid excessive contact with air, to prevent oxidation and other reactions.
Third, about transportation. Avoid vibration and collision during transportation. Such substances may cause packaging to break due to violent vibration, causing danger. And the transportation tool needs to maintain a suitable temperature and humidity environment. For example, when transporting 1% 2C2, the temperature should be strictly controlled to prevent excessive temperature fluctuations from affecting its performance. 4. During transportation, it is also necessary to ensure environmental stability and avoid external factors.
Fourth, safety protection. Whether it is storage or transportation, staff should take safety precautions. Wear appropriate protective equipment, such as protective gloves, goggles, gas masks, etc. Because 1% 2C2, dioxy, etc. are toxic and irritating, once they come into contact with the human body, or cause harm.
In short, 1% 2C2, dioxy, 4, Jiang, 5, carbonyl naphthalene are stored and transported, from environmental control, packaging selection, transportation operation to personnel protection, every link cannot be ignored, so as to ensure its safety and stability.