What are the main uses of trifluoro (trifluoromethyl) ethylene oxide?

Trimethylene oxide, or propylene oxide, does not have this exact chemical expression in the era covered by Tiangong Kaiwu, but its possible uses can be explored based on the chemical understanding at that time.

In ancient times, although propylene oxide was not precisely understood, it may have been used in chemical processes related to it. Propylene oxide is active and can participate in many chemical reactions. In the ancient lacquer process, various additives were added to large lacquers to improve their performance. If speculated from a modern chemical perspective, propylene oxide can be used as a reaction intermediate to react with certain components in the lacquer to enhance the adhesion and water resistance of the lacquer. For example, "Tiangong Kaiwu" talks about lacquer finishing, in order to make the lacquer firmly adhere to the surface of the utensil, propylene oxide may help.

Furthermore, in ancient fabric dyeing, mordants or additives were required in order to make the dye firmly adhere to the fabric fibers. Propylene oxide may interact with fabric fibers and dyes to improve dyeing fastness by taking advantage of its active chemical properties. "Tiangong Kaizhi" has a chapter on fabric dyeing. At that time, there may be similar methods to promote dye fixation. If propylene oxide existed in the cognitive system at that time, it may be used here.

In addition, propylene oxide can be ring-opened polymerized to form polyether polyols. In ancient times, although there was no mature process for synthesizing polyether polyols, similar polymerization principles may be reflected. If some adhesives are prepared, ancient craftsmen use natural materials to boil them. If propylene oxide-related reactions are introduced, the properties of the adhesives may be improved, making them more firmly bonded and used in wood splicing, ceramic repair and other fields.

Although propylene oxide is not explicitly mentioned in Tiangong Kaiwu, it can be speculated that it may have potential uses in improving material properties and promoting chemical reactions based on modern chemical knowledge combined with ancient chemical practices.

What are the physical properties of trifluoro (trifluoromethyl) ethylene oxide?

Trichloro (trichloromethyl) ethylene oxide, commonly known as epichlorohydrin, is an important organic compound. Its physical properties are as follows:
At room temperature and pressure, epichlorohydrin is a colorless and transparent liquid with an ether odor. Its boiling point is about 117.9 ° C. At this temperature, the substance changes from liquid to gaseous. The melting point is about -57.2 ° C. When the temperature drops below this point, epichlorohydrin will solidify from liquid to solid.

The density of this substance is greater than that of water, about 1.1806g/cm ³, so when mixed with water, it will sink to the bottom of the water. Epichlorohydrin is slightly soluble in water, but it can be miscible with various organic solvents such as alcohols, ethers, carbon tetrachloride, benzene, etc. This is due to the principle of similar miscibility, and its molecular structure is similar to that of organic solvents.

Epichlorohydrin is highly volatile, and it is easy to disperse into the air at room temperature. The vapor is heavier than air and can spread to a considerable distance at a lower place. Its flash point is 34 ° C. It is highly flammable and explosive when exposed to open flames and hot topics. It is a flammable liquid. Special attention should be paid to fire and explosion protection during production, storage and transportation.

In addition, epichlorohydrin is toxic and highly irritating to the eyes, respiratory mucosa, and skin. Exposure to or inhalation of its vapor may harm health. Therefore, strict protective measures must be taken during operation.

What are the chemical properties of trifluoro (trifluoromethyl) ethylene oxide?

Triethyl (triethyl methyl) ethylene oxide, although this substance is not detailed in the books of our country, it can be known from today's chemical principles.

This substance contains the structure of ethylene oxide. For ethylene oxide, the ring tension is high, so it has active chemical properties. Triethyl (triethyl) ethylene oxide, due to the existence of side chain triethyl methyl, its steric resistance and electronic effects change.

Its chemical activity is active, and it is easy to open the ring of ethylene oxide when encountering nucleophiles such as water, alcohol, and amine. In case of nucleophiles such as hydroxy groups of water, alkoxy groups of alcohols, and amino groups of amines, it can attack the carbon atoms of ethylene oxide rings, causing ring rupture and generating corresponding ring-opening products. The reaction is often selective, depending on the activity of the nucleophilic reagent, the steric resistance and the reaction conditions.

Under acidic conditions, ethylene oxide ring is protonated, which enhances the electrophilicity of the ring, makes the nucleophilic reagent more prone to attack, and accelerates the ring-opening reaction. Under basic conditions, the nucleophilicity of the nucleophilic reagent is enhanced, which is also conducive to ring opening.

Because of its activity, it is widely used in organic synthesis. It can be used as an intermediate to introduce specific functional groups through the ring-opening reaction to form complex organic molecules. However, due to its activity, caution must be used when storing and using to prevent accidental reactions. The study of its reactivity is an important part of organic synthetic chemistry, which helps us make better use of it and create a variety of organic compounds, which is of great significance in the fields of medicine, materials, and so on.

What is the production method of trifluoro (trifluoromethyl) ethylene oxide?

The method of making trimethylmethyl oxyethyl ether is as follows:

First take three of the amount of trimethylmethyl (trimethylmethyl) raw material and place it in the reactor. Keep the dryness in the kettle to prevent the shadow from reverberating. The reactor is placed on a fixed addition, and it can be raised to a specific degree. This degree depends on the principle of refining and predecessors. Generally speaking, only in a certain period of time can the anti-oxidation benefit be carried out.

With the same method, a certain proportion of the oxidized oil is measured with a fine measuring instrument, and it is slowly added to the reactor. The addition process needs to be extra careful, and the speed of addition must be controlled. It must be integrated into the raw material. Whether it is easy to cause uneven reaction, resulting in uneven reaction. After adding the mixture, it is necessary to maintain the stability of the reaction kettle and the mixing speed, so that the two can be fully reversed. This reaction process needs to be closely observed for several hours, and the reaction process can be closely observed. It can be judged whether the reaction has reached the level of the reaction period by means of such methods as eyes and instruments.

When the reaction is finished, the mixture in the reaction kettle is then added into the separation process. The three (trimethyl) oxyethyl ether is precipitated from the mixture by subtle methods such as separation and extraction. The separation process also needs to follow the operation standard in order to obtain a high-quality product. After the separation is completed, the obtained product is refined and removed, and the remaining product is removed to the required degree.

This is the approximate method of manufacturing trimethyl (trimethyl) oxyethyl ether. It is very difficult to produce, and it is necessary for those who need to work hard according to the situation. Only by means of profound skills and accuracy can they obtain the best products.

What are the precautions for trifluoro (trifluoromethyl) ethylene oxide during use?

Triazole (triazomethyl) ethylene oxide must be used with caution in all matters.

First, it is related to storage. This agent should be stored in a cool, dry and well-ventilated place, away from fire and heat sources. Geiintriazole (triazomethyl) ethylene oxide can easily cause the danger of combustion and explosion when exposed to open flames and hot topics, causing accidents. Therefore, fireworks must be strictly prohibited in the storage place, and corresponding fire equipment should be equipped, just in case.

Second, it involves access operation. When taking it, be sure to wear appropriate protective equipment, such as protective gloves, goggles, gas masks, etc. This agent is irritating to the skin, eyes and respiratory tract. If it is inadvertently touched, it may cause skin burns, eye tingling, and even affect breathing, endangering health. During the use process, the action should be slow to prevent the agent from splashing. If there is a splash, it should be dealt with immediately according to the established emergency treatment process.

Third, the use environment should not be ignored. The place of use should have good ventilation conditions to prevent the evaporation and accumulation of the agent, resulting in excessive concentration in the air, causing poisoning and other accidents. At the same time, the operation area should be kept clean, and no debris should be accumulated, so as not to affect the operation, and it is convenient to clean up the possible leakage of the agent in time.

Fourth, the dosage should be controlled. Be sure to use it strictly in accordance with the specified dosage, and do not increase or decrease it without authorization. If the dosage is too small, it may be difficult to achieve the expected effect; if the dosage is too large, it will not only increase the cost, but also cause pollution to the surrounding environment, or have adverse effects on the object of action, such as drug damage.

Fifth, attention should also be paid to disposal after use. After use, the remaining drugs should be properly stored and cannot be discarded at will. Used appliances must be cleaned in time to prevent residual drugs from affecting subsequent use. Discarded packaging, etc. should also be properly disposed of in accordance with relevant regulations, and should not be discarded in the environment at will to avoid polluting the environment.