(This material takes epoxy group-silicone oil as an example) In this material, the epoxy group is a group with active chemical properties. The epoxy group has a ternary ring structure, and the ring has a large tension, which causes the epoxy group to exhibit high reactivity. In many chemical reactions, the epoxy group can react with compounds containing active hydrogen, such as alcohols, amines, carboxylic acids, etc. In the reaction with alcohol, for example, under the action of an appropriate catalyst, the epoxy group will open the ring and perform an addition reaction with the alcohol hydroxyl group to form a product with a hydroxyl group. This reaction is commonly used in the preparation of polymers containing specific functional groups or in the modification of materials.
silicone oil part, silicone oil generally refers to polysiloxane compounds, and its main chain is composed of silicon-oxygen bonds (Si-O). The high silicon-oxygen bond energy endows silicone oil with good thermal and chemical stability. The side chains of silicone oil are usually organic groups, such as methyl and phenyl. Taking methyl silicone oil as an example, its side chain methyl gives silicone oil the characteristics of low surface tension, making it have good defoaming, lubrication, demoulding and other properties. At the same time, the molecular chain of silicone oil has a helical structure and weak intermolecular force, which makes silicone oil have the characteristics of low viscosity and high fluidity.
Epoxy-silicone oil combines the reactivity of epoxy groups with the unique properties of silicone oil. On the one hand, epoxy groups can be chemically introduced into other functional groups or crosslinked with other substances to modify the material; on the other hand, silicone oil partially imparts good thermal stability, chemical stability, low surface tension and other properties to the material. This special chemical property makes epoxy-silicone oil widely used in many fields. For example, in the field of coatings, epoxy-based reactivity can be used to crosslink with other resins to improve the hardness and adhesion of coatings. At the same time, silicone oil partially imparts good leveling and water resistance to coatings; in the field of textile additives, it can give fabrics a soft and smooth feel, and at the same time, it can chemically react with fabric fibers with epoxy-based reactivity to improve the durability of additives.

(1) On the "1-"
hydroxymethyl group of hydroxymethyl group, it is an important group in organic chemistry. In its structure, the hydrogen atom and the oxygen atom are connected in the state of a hydroxyl group (-OH), and this hydroxyl group is related to a methyl group (-CH 🥰). In many organic reactions, hydroxymethyl groups exhibit unique chemical activities.
Looking at its reactivity, due to the high electronegativity of the oxygen atom, the hydrogen-oxygen bond polarity in the hydroxyl group is significant, and the hydrogen atom is easily dissociated in the form of protons, making the hydroxymethyl group acidic to a certain extent. And the presence of the hydroxyl group changes the electron cloud density of the carbon atom connected to it, which affects the reaction characteristics of the molecule as a whole. In the nucleophilic substitution reaction, the hydroxyl group of the hydroxymethyl group can be replaced by other nucleophilic reagents, and then a variety of organic compounds can be derived. In the oxidation reaction, the hydroxymethyl group can be gradually oxidized to form different functional groups such as aldehyde and carboxyl groups, which greatly enriches the types of organic compounds.
(2) Talking about the application field of sodium cyanide
Sodium cyanide is highly toxic, but it has important applications in many fields such as industry and metallurgy.
In the metallurgical industry, sodium cyanide is often used to extract precious metals such as gold and silver. The principle is that cyanide ions (CN) can form stable complexes with metal ions such as gold and silver, and with this characteristic, precious metals such as gold and silver can be effectively separated and extracted from ores. For example, in gold mining, gold ore is treated with sodium cyanide solution, and gold ions combine with cyanide ions to form a soluble complex. After a series of chemical processes, gold can be reduced and refined.
In the field of organic synthesis, sodium cyanide is also an important raw material. It often participates in nucleophilic substitution reactions, introducing cyanide (-CN) into organic molecules. After subsequent chemical reactions, cyanide can be converted into carboxyl (-COOH), amino (-NH2O) and other functional groups, providing an effective path for the synthesis of complex organic compounds. For example, halogenated hydrocarbons react with sodium cyanide to form nitriles, which are key intermediates in organic synthesis.
However, due to the highly toxic nature of sodium cyanide, it is necessary to follow strict safety procedures when using it to prevent leakage, so as to avoid causing great harm to the environment and human body.

There are several ancient methods for making benzopyrene.
First, you can prepare a retort. Choose a good kettle, its quality is strong and thick, to prevent uneven heating and cracking. The size of the retort should be adapted to the kettle, so that the gas can flow smoothly. Place the object you want to make in the kettle and boil it slowly over low heat. The size of the fire needs to be carefully adjusted. If the fire is fierce, it will be easy to burn, and if the fire is small, it will take too long. When the object in the kettle is heated and evaporated, the gas rises and encounters the retort, condenses into a liquid, and goes down the wall of the retort to get what you need.
Second, a constricted bottle and a condenser tube can be used. The constricted bottle should be selected with excellent glass quality, and its neck curvature is moderate, which is easy to conduct gas. The condensing pipe is also made of glass, and the outside is wrapped with a damp cloth to reduce the temperature in the pipe. Put the material into the curved neck bottle and heat it up. The hot air is introduced into the condensing pipe through the curved neck, and when it is cooled into a liquid, it flows into the receiving device. The degree of heating should also be paid attention to, depending on the nature of the material.
Third, if there is a pottery urn, it can also be used. The urn is fired with clay and has a dense texture. Open a small hole on the side of the urn and insert a bamboo or copper tube to guide the gas. The urn has a built-in material, which is sealed with a cover, so that the gas will not leak out. Make a fire under the urn, wait for the material to dissolve gas, and export it from the tube and connect it with a device. This rule of law is benzopyrene, although the equipment is simple, it is crucial to grasp the heat, and it is not effective if it is too much or not.
All these production methods depend on the careful operation of craftsmen, observing the heat and observing the physical state, in order to obtain the equipment system of benzopyrene, in order to achieve the expected purpose.

It is difficult to generalize the price of sulfhydryl at the market price. Capsulfhydryl involves a wide range of categories and uses, and its price often depends on various factors.
First, the source of raw materials. If the raw materials required for its production are easily available and abundant, the price may tend to be easy; on the contrary, if the raw materials are scarce, difficult to find, or need to rely on a special way to obtain them, the price will be high.
Second, the fine and coarse craftsmanship. Those with exquisite and mature craftsmanship have high production efficiency and low wear and tear, controllable cost, and stable or reduced price; if the craftsmanship is still being explored, or the steps are complicated, time-consuming and labor-intensive, the price will be high.
Third, the supply and demand of the market. If there are many people in demand and there are few suppliers, the price will rise; if the supply exceeds the demand, the stock will be difficult to sell, and the price will fall.
As for mercaptopropyl, it is a class of sulfhydryl groups. Its market price also follows the above rules. In the chemical industry, it is often an essential material for synthesis. If the chemical industry is booming at that time, the demand for it will surge, and the production and supply will not respond quickly, the price may skyrocket.
Looking at mercaptoether again, its price is also affected by the same reasons. Mercaptoether has its own uses in the fields of medicine, materials, etc. In pharmaceutical research and development, it may be a key intermediate; in material creation, it may be endowed with material specificity. If the pharmaceutical and material industries develop rapidly, the demand for mercaptoether increases sharply, and the manufacturer fails to expand production in time, the market price will rise. On the contrary, if the industry development slows down and the demand shrinks, the price may be lower.
It is necessary that the market prices of mercaptopropyl and mercaptoether are not static, and often change with changes in raw materials, manufacturing, supply and demand. It is difficult to determine their exact value.

Mercury, a common water, is a gold element, and its chemical symbol is Hg. Mercury alkyl compounds, such as methylmercury, are special and harmful.
Mercury exists in many forms in nature. Its usual storage materials have been investigated. Because mercury is often liquid and has the properties, it needs to be properly stored.
First, mercury should be sealed and stored. Because mercury is easy to form mercury vapor, mercury vapor is toxic, if inadvertently inhaled, it will seriously endanger people's health and harm the gods. A sealed container can effectively prevent mercury from entering the air, such as using a well-sealed glass bottle or gold container to contain mercury.
Second, the storage environment of mercury should be low, low and dry. The high temperature will accelerate the rate of mercury loss, so it is necessary to avoid mercury exposure to high temperatures. The tidal environment or the degree of mercury loss may also cause corrosion in the storage container, leading to mercury leakage.
Third, mercury cannot be easily destroyed by its biological and biological reactions. Mercury can form mercury in multiple gold deposits. If some gold is stored in one deposit, or it is caused by biochemical reactions, it will cause mercury to change its properties and increase its storage.
In the case of the storage of mercury and its compounds, it is necessary to follow the standard requirements to ensure the safety of the environment and human health, and must not be negligent.