What are the chemical properties of 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10-henicosafluoro-10-iododecane
1%2C1%2C1%2C2%2C2%2C3%2C3%2C4%2C4%2C5%2C5%2C6%2C6%2C7%2C7%2C8%2C8%2C9%2C9%2C10%2C10-perfluorohexyl iodine (henicosafluoro-10-iododecane), its chemical properties are unique. The high fluorine content of this substance makes it have many unique properties.
First, the surface activity is very strong. Because of the high electronegativity of fluorine atoms and the small radius, the molecular surface energy is low, so it is easy to accumulate at the interface, showing excellent surface activity. It can reduce the surface tension of liquids and is used in coatings, inks, etc., making it good spreadability and wettability.
Second, high chemical stability. Carbon-fluorine bond energy is large, making it resistant to chemical corrosion and oxidation. In harsh chemical environments, it is also difficult to react with other substances, and can be used to prepare corrosion-resistant materials.
Third, excellent thermal stability. Can remain stable at higher temperatures, do not decompose and do not change. In high-temperature processes or fields that require heat-resistant materials, such as aerospace, it has important uses.
Fourth, both hydrophobic and oleophobic. The fluorine atom property makes the molecular surface water-repellent and oil-repellent, which can be used for fabric finishing, giving the fabric the function of waterproof and oil-proof.
Fifth, the solubility is special. It has poor solubility in ordinary organic solvents, but it can be dissolved in some fluorine-containing organic solvents. This property determines its application in specific systems.
Perfluorohexyl iodine has important value and wide application in materials science, chemical industry and other fields due to its unique chemical properties.
What are the physical properties of 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10-henicosafluoro-10-iododecane
1%2C1%2C1%2C2%2C2%2C3%2C3%2C4%2C4%2C5%2C5%2C6%2C6%2C7%2C7%2C8%2C8%2C9%2C9%2C10%2C10 - henicosafluoro - 10 - iododecane, Chinese name or 1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10 - 21 fluoro - 10 - iododecane. This substance has unique physical properties.
Looking at its physical properties, its phase state and melting boiling point are the first priority. At room temperature and pressure, or in a liquid state. Because of its long fluorocarbon chain, the intermolecular force is different, and the melting boiling point is different from that of common alkanes. Generally speaking, the introduction of fluorine atoms changes the intermolecular force, and its boiling point may increase due to the large electronegativity of fluorine atoms and the enhancement of intermolecular dipole-dipole interaction.
Solubility is also key. The long fluorocarbon chain makes the substance hydrophobic and oily. It has poor solubility in common organic solvents such as ethanol and acetone, but it can be dissolved in some fluorine-containing organic solvents. This is the characteristic of fluorocarbons.
Surface properties are particularly important. Long fluorocarbon chains tend to accumulate on the surface, resulting in low surface tension. Coating it on the surface of the material can reduce the surface energy and make the material waterproof, oil-proof and anti-fouling properties, such as water droplets rolling off like lotus leaves, and oil stains are difficult to adhere.
In terms of density, the density of fluorine atoms and iodine atoms may be greater than that of common alkanes due to their large relative atomic masses. Containing fluorine and iodine atoms, it also affects the optical and electrical properties. Under certain conditions, it may exhibit a unique optical or electrical response, with potential applications in the field of optoelectronic devices.
What are the main uses of 1, 1, 2, 2, 3, 3, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10-henicosafluoro-10-iododecane
1%2C1%2C1%2C2%2C2%2C3%2C3%2C4%2C4%2C5%2C5%2C6%2C6%2C7%2C7%2C8%2C8%2C9%2C9%2C10%2C10-perfluorooctyl iodine (henicosafluoro-10-iododecane) has a wide range of uses. This substance is often used as a raw material for the preparation of fluorosurfactants in the chemical industry. Fluorosurfactants have high surface activity, hot topic stability and chemical stability, and are widely used in textiles, leather, papermaking, coatings, inks and other industries. It can make fabrics waterproof, oil-proof and anti-fouling, make leather more durable and beautiful, improve the surface properties of paper in papermaking, and increase its leveling and adhesion in paints and inks.
Furthermore, in the field of organic synthesis, perfluorooctyl iodine is also an important intermediate. Perfluoroalkyl groups can be introduced through many chemical reactions to prepare organic compounds with special properties, such as fluorinated drugs and fluorinated materials. Fluorinated drugs often have unique physiological activities and pharmacokinetic properties, which are of great significance in pharmaceutical research and development. Fluorinated materials are also favored in high-end fields such as electronics and aerospace due to their excellent heat resistance, chemical corrosion resistance, and low dielectric constant.
Perfluorooctyl iodine also has outstanding performance in the field of surface treatment. It can form a dense fluorine-containing molecular film on the surface of the material, thereby improving the wettability and tribological properties of the material surface. In the cutting-edge fields of micro-electromechanical systems (MEMS) and nanotechnology, this feature can optimize the performance of micro-nano devices, reduce their friction and wear, and increase their service life.
What is the synthesis method of 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10-henicosafluoro-10-iododecane
To prepare 1%2C1%2C1%2C2%2C2%2C3%2C3%2C4%2C4%2C5%2C5%2C6%2C6%2C7%2C7%2C8%2C8%2C9%2C9%2C10%2C10-undecafluoro-10-iodine decane, the following method can be followed.
First, decanol is used as the beginning, and decanol is reacted with p-toluenesulfonyl chloride in an alkaline environment to produce p-toluenesulfonate. This step of the reaction converts the hydroxyl group into a group that is easy to leave, paving the way for subsequent halogenation reactions. The base used is often pyridine and the like. Pyridine can neutralize the acid generated by the reaction and promote the reaction to proceed forward.
React with decyl p-toluenesulfonate and a fluorinating reagent to obtain a fluorine-containing decane derivative. Fluorizing reagents, such as potassium fluoride, can be selected. With the help of a phase transfer catalyst, the reaction can be smoother. The phase transfer catalyst can help the ionic reagent to cross the two-phase interface and improve the reaction efficiency.
Then, the fluorodecane derivative reacts with the iodide reagent to obtain 1%2C1%2C1%2C2%2C2%2C3%2C3%2C4%2C4%2C5%2C5%2C6%2C6%2C7%2C7%2C8%2C8%2C9%2C9%2C10%2C10-undecafluoro-10-iododecane. Iodide reagents, such as sodium iodide and sulfuric acid, are combined. Sodium iodide provides iodine ions, and sulfuric acid creates an acidic environment to promote the reaction.
Each step of the reaction requires temperature control, timing control, and solvent selection. Temperature affects the reaction rate and selectivity, time is related to the completion of the reaction, and solvent affects the solubility and reactivity of the reactants. Thus, following this series of steps, the target product can be prepared 1%2C1%2C1%2C2%2C2%2C3%2C3%2C4%2C4%2C5%2C5%2C6%2C6%2C7%2C7%2C8%2C8%2C9%2C9%2C10%2C10 - undecafluoro - 10 - iododecane.
1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10-henicosafluoro-10-iododecane what are the precautions during use
For 1%2C1%2C1%2C2%2C2%2C3%2C3%2C4%2C4%2C5%2C5%2C6%2C6%2C7%2C7%2C8%2C8%2C9%2C9%2C10%2C10-undecafluoro-10-iododecane, all precautions must be specified when using it.
First, this material has special chemical properties, or is active. When storing, it must be placed in a cool, dry and well-ventilated place, away from fire and heat sources, to prevent unexpected changes. If it is heated, it may cause chemical reactions and cause danger.
Second, when using, protective gear is indispensable. Appropriate protective clothing, such as chemically resistant clothing, should be worn to prevent it from touching the skin and damaging the body surface. At the same time, protective gloves must be worn, and the material should be able to resist its erosion. Facial protection should not be underestimated. Wear goggles to prevent it from splashing into the eyes and hurting the vision.
Third, the operating environment must be well ventilated. If used in a confined space, its volatile gas will not disperse, or the risk of poisoning will also increase the risk of fire and explosion. Ventilation equipment should be inspected and repaired regularly to ensure its normal operation.
Fourth, it should not be ignored after use. Residual liquid and waste should not be disposed of at will. They must be properly disposed of in accordance with relevant laws and regulations to prevent pollution and the environment. The utensils used should also be carefully cleaned to remove their residues before they can be reused.
Furthermore, the operator should be familiar with its nature and hazards, and after professional training, know its emergency response methods. In case of accidental contact, immediately rinse with a large amount of water and seek medical attention. If there is a leak, the source should be quickly cut off, evacuate personnel, and take appropriate disposal measures according to the scale of the leak.