Imidazole,epichlorohydrinpolymer

There is no direct record of calcium cyanamide compounds in "Tiangong Kaiwu". The following is a reply written in the style of ancient classical Chinese, combined with the characteristics and common uses of such compounds:
The genus of calcium cyanamide, although not a common thing in ancient times, can be deduced from today's knowledge, and its use can also be observed. This compound, often white powder, has unique characteristics.
One, in agriculture, it can be used as fertilizer. Cover because of its nitrogen content, can help soil fertilize and promote crop growth. Nitrogen, an essential nutrient for plants, calcium cyanamide is applied to the soil, and through a series of changes, it releases nitrogen, nourishes crops, and makes seedlings strong and spikes solid, just like the help of heaven.
Second, it is also very useful for soil improvement. It can adjust the pH of the soil, making the acidic soil gradually neutralize. And it can improve the structure of the soil, make the soil loose, and facilitate the extension and respiration of the root system. In this way, the soil is always new, and the fields are not declining.
Third, calcium cyanamide can also be effective in the way of pest control and pest control. It has a certain toxicity and can drive away all kinds of pests and pathogens in the soil. After entering the soil, it can avoid insects, and it is difficult for pathogens to survive. When the crops are not sick, it is necessary to reduce the work of farmers to treat insects and prevent diseases.
Fourth, in the industrial field, although ancient books have not been involved, it may be used as a raw material for some chemical products. Through exquisite craftsmanship, other useful things can be prepared, which contributes to the prosperity of Baigong.
In summary, although calcium cyanamide is not well known in ancient times, it is widely used in agriculture and industry and helps people's livelihood.

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Propylene oxide polymer is a polymerization of propylene oxide monomer. It has many unique properties. First, it has good solubility. It can show good solubility in common organic solvents such as ethanol and acetone. This property makes it very convenient for application in many fields, such as coatings, adhesives and other fields. It can be uniformly mixed with other components to exert its effectiveness.
Second, high reactivity. Propylene oxide polymer molecules contain active epoxy groups, which are like "active factors" in chemical reactions. They can react with many nucleophilic reagents, such as reacting with amines to form polymers with different properties, or reacting with alcohols, so as to modify their molecular structure and properties and expand their application range.
Furthermore, thermal stability cannot be ignored. In a certain temperature range, it can maintain its own structure and properties. This property makes it possible to apply it in high temperature environments. For example, in some high temperature processing processes, it can still maintain its own characteristics and will not deteriorate due to temperature.
In addition, the mechanical properties are more outstanding. The polymer materials formed often have certain strength and toughness, which can meet the requirements of mechanical properties of materials in different scenarios, or be used to manufacture parts that need to withstand certain pressure and tension, providing reliable material selection for industrial production and daily life.
Propylene oxide polymers have diverse and unique chemical properties, and occupy an important place in modern industrial and scientific research, providing a solid material foundation for the development of many fields.

First, there are many things to pay attention to in the production process of propoxypropane polymerization products.
First, the raw materials are not carefully selected. The degree of raw materials such as propoxypropane is very important. If it contains high content, it is easy to shadow and reverse the polymerization process, resulting in poor quality. Therefore, it is necessary to control the quality of raw materials and products, and keep them in line with the requirements of production.
Second, the reaction parts need to be precisely controlled. The degree of polymerization reaction, the force, and the amount of catalysis are all factors. High degree of reaction, fast reaction rate, but easy to cause cracking of polymer molecules, shadow performance; low degree of reaction, slow reaction, and even poor production. Force also needs to be matched to ensure anti-profit promotion. The amount of catalysis should not be ignored either. If the amount is too much or too little, it will change the characteristics of the product in the reverse process.
Third, the cleaning efficiency of the product should not be underestimated. The anti-kettle, pipeline, etc. used in the production process should be checked regularly to ensure the risk of leakage. And every time the production is completed, the bottom should be cleaned to prevent the next reaction. If there is a problem, it is not dealt with in time, and it is not done in the dry process, it is more likely to lead to safety accidents.
Fourth, the skills of the operator are of paramount importance. The operator should be familiar with the principle, operation process and emergency management method of the aggregation reaction. In the operation process, it is necessary to follow the procedures, be careful, and do not slack off. A little mistake may become a big problem.
Fifth, environmental safety measures must be taken seriously. Hazardous pollutants, liquids and other pollutants may be generated during the production process, and they should be properly handled to ensure safety. At the same time, it is necessary to provide complete safety measures, such as fire prevention, explosion-proof, and poison-proof facilities, to ensure the safety of human life.

There are cyanoborane compounds today, and their market price range, I have checked the classics in detail, but I have not obtained an exact number. However, such compounds are not easy to prepare, the methods used may be complicated and expensive, and the raw materials are also rare, so their price is not cheap.
Looking at all kinds of ingenious things, the price is high or low, often depends on the materials used, the difficulty of preparation, and the amount of demand. Cyanoborane compounds, or because of the difficulty of preparation, need to use exquisite methods to control all kinds of conditions, resulting in huge consumption of manpower and material resources.
Furthermore, the raw materials used may be rare or expensive, and it is not easy to find, which also increases its cost, and the price is therefore high. And although it is available in many fields, it is not necessary for daily use, and the demand is not as wide as that of ordinary things, so that its price is difficult to be easy.
Basically speaking, such compounds, or the spectrum of tens of gold to hundreds of gold per catty, are only speculative numbers. The price of market changes often varies with changes in time, place, and supply and demand, so it is difficult to determine. If you want to know the exact price, you should consult the experts in the market, or you can know the clues.

Cyanofrost, that is, cyanofrostazole, is an azole fungicide. Its chemical names are 4-chloro-2-cyano-N, N-dimethyl-5-p-toluimidazole-1-sulfonamide. Epoxy compounds are compounds containing ternary cyclic ether structures, and propylene oxide is an important organic chemical raw material. The following are the storage conditions of epoxy compound assemblies:
Epoxy compounds are active in nature, and they are the first to isolate fire and heat sources during storage. Because of their flammability, they are very easy to burn and explode in case of open flames and hot topics. Therefore, pyrotechnics should be strictly prohibited in storage places, and they should be kept away from heat sources such as boilers and heating equipment to prevent the material from volatilizing due to the increase in temperature. The concentration reaches the
Secondly, it is necessary to pay attention to the drying and ventilation of the environment. Epoxy compounds are prone to open-ring reaction with water, resulting in deterioration, so the humidity of the storage environment should be low. Good ventilation can disperse leaked or volatile gases in time, avoid the formation of explosive mixed gases, and reduce safety risks.
Furthermore, attention should be paid to storage away from light. Some epoxy compounds are sensitive to light, and light may cause their decomposition or polymerization reactions, which will affect the quality. Therefore, storage containers should be made of dark materials or stored in dark warehouses.
In addition, storage containers should be well sealed and made of suitable materials. Make sure that the seal prevents leakage and air from entering and avoids reaction with oxygen. Different epoxy compounds have different chemical properties, and suitable material containers should be selected according to their characteristics. For example, copper containers such as ethylene oxide should not be used, because explosive copper salts will be generated.
The storage of epoxy compounds should also be divided and classified, and should not be mixed with oxidants, acids, bases, etc. Because it is prone to violent reactions with these substances, causing danger. And the storage place should be equipped with perfect fire and leakage emergency treatment equipment to deal with emergencies.