Chemical Formula | C6H5F |
Molar Mass | 96.10 g/mol |
Appearance | Colorless liquid |
Odor | Aromatic odor |
Density | 1.022 g/cm³ |
Melting Point | -44.7 °C |
Boiling Point | 84.7 °C |
Solubility In Water | Insoluble |
Solubility In Organic Solvents | Soluble in many organic solvents |
Vapor Pressure | 13.3 kPa at 22.7 °C |
Flash Point | -12 °C |
Refractive Index | 1.4652 |
What are the main uses of Phenyl Fluoride?
Phenyl fluoride, or fluorobenzene, is an organic compound. Its main uses are as follows:
First, in the field of pharmaceutical synthesis, its use is quite critical. Fluorobenzene can be used as an important pharmaceutical intermediate for the preparation of a variety of drugs. For example, in the synthesis of many fluorinated antibacterial drugs and psychotropic drugs, fluorobenzene is an indispensable starting material or key intermediate. With its special chemical structure, it can endow drugs with more excellent physiological activity and pharmacokinetic properties, such as enhancing the ability of drugs to bind to targets, improving the stability of drugs, optimizing the absorption, distribution, metabolism and excretion of drugs in the body, and then improving the efficacy and safety of drugs.
Second, it also plays an important role in the manufacture of pesticides. Fluorobenzene is an important raw material for the synthesis of new high-efficiency pesticides. Fluorinated pesticides often have many advantages such as high efficiency, low toxicity, and low residue. They have strong inhibitory and killing effects on pests and bacteria, and are relatively harmless to the environment. Pesticides synthesized on the basis of it can be widely used in the prevention and control of crop pests and diseases, effectively ensuring the yield and quality of crops.
Third, in the field of materials science, fluorobenzene also has unique uses. It can participate in the synthesis of special polymer materials. By introducing fluorine atoms, the properties of materials can be significantly improved. For example, to improve the chemical corrosion resistance, heat resistance, weather resistance, and electrical insulation of materials. These special polymer materials are widely used in many fields such as aerospace, electronic appliances, and automobile manufacturing. For example, high-performance sealing materials and insulating materials used in the aerospace field are partially prepared from polymer materials containing fluorobenzene structures, which meet the extremely high requirements for material properties in harsh environments.
Fourth, in the field of organic synthetic chemistry, fluorobenzene, as an important aromatic halide, can participate in many organic reactions. Like nucleophilic substitution reactions, metal-catalyzed coupling reactions, etc., to construct various complex organic compound structures. These reactions provide organic synthetic chemists with a wealth of means for creating organic molecules with specific structures and functions, which greatly promote the development and progress of organic chemistry.
What are the Physical Properties of Phenyl Fluoride?
Phenyl fluoride is a class of organic compounds. Its physical properties are particularly crucial, and this is for you to describe in detail.
First of all, its phase state and appearance. Under normal temperature and pressure, phenyl fluoride is mostly liquid, with a pure and clear texture. It looks like water, and some are colorless and transparent, just like the crystal of glass. This pure appearance is convenient for observation and operation in many chemical experiments and industrial applications. Because it has no variegated interference, it is easy to determine the reaction process and product purity.
Secondary and volatile. Phenyl fluoride has a certain degree of volatility and can slowly dissipate in the air. This characteristic makes its smell detectable to those with a keen sense of smell. Its taste is unique, but it is not a pungent and unpleasant smell, but a special organic smell. Volatility makes it diffuse quickly in a specific environment, and it can be quickly diluted in a well-ventilated space to reduce the hidden danger of excessive local concentration. However, in a closed space, it is necessary to pay attention to its accumulation to prevent safety problems.
Furthermore, when it comes to melting point and boiling point. Phenyl fluoride has a low melting point, which is higher than its melting point at room temperature, so it is liquid. The boiling point is relatively moderate, neither is it a low-boiling material that is very easy to boil, nor is it difficult to vaporize with a high boiling point. Moderate boiling point, in separation, purification and other chemical operations, can be used by distillation and other means to precisely control temperature, effectively separate it from the mixture, and ensure product purity.
Solubility is also an important property. Phenyl fluoride has good solubility in organic solvents, such as ethanol, ether and other common organic solvents, which can be miscible with it. This property is of great significance in the field of organic synthesis. Many reactions need to be carried out in solution. Good solubility allows the reactants to be fully contacted, accelerate the reaction rate, and improve the reaction yield. However, the solubility in water is poor. Due to the weak force between phenyl fluoride and water molecules, it is difficult to form a uniform and stable solution. This property helps to separate and purify it by means of aqueous-organic phase separation.
In terms of density, phenyl fluoride has a slightly higher density than water. When mixed with water, it will sink to the bottom of the water. This phenomenon can be intuitively distinguished in systems involving water and phenyl fluoride, providing a basis for separation operations. The physical properties of
phenyl fluoride, such as phase state, volatility, melting and boiling point, solubility and density, are interrelated, and affect its application and treatment methods in many fields such as chemical research and industrial production. It is an indispensable basis for the research and utilization of this compound.
Is Phenyl Fluoride Chemically Stable?
Phenyl fluoride (Phenyl Fluoride) is also an organic compound. Its chemical properties are more stable than other halogenated aromatic hydrocarbons.
In phenyl fluorine, the fluorine atom is connected to the benzene ring. The benzene ring has a conjugated system and has a stable structure. Although the electronegativity of fluorine atoms is high, the carbon-fluorine bond formed with the benzene ring has a short bond length and a high bond energy. This makes the chemical activity of phenyl fluorine limited, and the reactivity is lower than that of other halogenated aromatic hydrocarbons.
Under normal conditions, phenyl fluorine is difficult to react with common reagents. For example, nucleophilic substitution reactions usually require more severe conditions to occur. Due to the small tendency of fluorine atoms to leave, carbon-fluorine bonds are not easy to break. However, in the presence of special catalysts, high temperature and high pressure and other harsh conditions, partial conversion can still be achieved.
Phenyl fluoride also exhibits considerable stability in common reactions such as oxidation and reduction. It is not easily oxidized by ordinary oxidants, and it is difficult to be reduced by reducing agents under mild conditions.
The stability of phenyl fluoride is due to the combination of the conjugation effect of the phenyl ring in its molecular structure and the inherent characteristics of carbon-fluorine bonds. This property makes phenyl fluoride a relatively stable structural unit in organic synthesis, providing a foundation for the construction of complex organic molecules, and has unique value in some application scenarios that require stable structure.
What are the Preparation Methods of Phenyl Fluoride
There are roughly several ways to prepare fluorobenzene. One method is to start with aniline. First, aniline is reacted with hydrofluoric acid and sodium nitrite. At low temperature, this reaction can obtain diazofluoroborate, and then heated, and its decomposition can obtain fluorobenzene. This process requires attention to temperature control. When low temperature is formed into salt, heating promotes its decomposition. If the temperature is not appropriate, or side reactions occur, affecting the yield and purity of fluorobenzene.
Another method can be prepared from chlorobenzene. The reaction of chlorobenzene and potassium fluoride in a specific solvent and the presence of a catalyst can form fluorobenzene. However, the choice of solvent and catalyst is crucial. The selected solvent needs to have good solubility to the reactants and no adverse effect on the reaction; the catalyst can improve the reaction rate and shorten the reaction time. If the solvent and catalyst are not well selected, the reaction may be difficult to proceed smoothly, and the yield is also low.
Furthermore, benzene can be obtained by direct fluorination with benzene as raw material. However, the direct fluorination reaction is violent, and due to the high activity of fluorine, it is easy to overreact and generate by-products such as fluorinated substitutes. Therefore, special reaction conditions and control methods are often required, such as diluting the concentration of the reactants, using mild fluorinating agents, or performing it in a specific reactor, to ensure that the reaction is controllable and improve the selectivity of fluorobenzene. < Br >
All these methods for preparing fluorobenzene have advantages and disadvantages. When actually preparing, it should be carefully selected according to factors such as the availability of raw materials, cost, and product purity requirements.
What is the price range of Phenyl Fluoride in the market?
The price range of phenyl fluoride in the city is difficult to determine. The price varies from time to time due to many reasons, and the market conditions are different from time to time.
First, its purity has a lot to do with it. If the purity is extremely high, it is almost flawless, the required craftsmanship will be proliferated, and the labor cost will be huge, and the price will be high. Or up to thousands of gold per catty, or even thousands of gold per catty. If the purity is slightly lower, it can still be used in ordinary industries, and the price should be reduced, or hundreds of gold per catty.
Furthermore, the source of production is also the main reason. If the origin is close and the supply is wide, the transportation cost will be saved, and the supply will be sufficient, and the price will be flat. If the production is remote, it will cost a lot to transport to the city, and there will be risks on the way, and the price will increase
Again, the market supply and demand situation is deeply affected. If there are many applicants, the demand is greater than the supply, and the price must rise. Merchants compete to buy, and the price may soar. On the contrary, if the market hoards up, there are few applicants, and the supply exceeds the demand. If merchants want to sell their goods, the price will fall.
In addition, the fluctuation of the market, the regulations of the government, and the price changes of raw materials can all make the price of phenyl fluoride fluctuate. Therefore, if you want to know the exact price, you should carefully study the situation of the city, consult the human performers of virtual idols in all industries, and observe the real-time news, you can get a near-real price.