Tri-n-octylphosphine, the Chinese name tri-n-octylphosphine, is an organophosphorus compound, which has a wide range of uses in the field of organic synthesis and materials science. It has the following chemical properties:
This substance is a colorless to light yellow liquid with a unique odor and certain volatility. Due to the lone pair of electrons in the phosphorus atom in the molecule, it is basic and can react with acids to form salts.
Tri-n-octylphosphine has good solubility. It is soluble in most organic solvents such as toluene, chloroform, dichloromethane, etc., but insoluble in water. This solubility characteristic makes it easy to disperse and participate in reactions in organic reaction systems.
In terms of oxidation reactions, tri-n-octylphosphine is easily oxidized. In case of strong oxidizing agents, phosphorus atoms can be oxidized to higher valence states to form products such as tri-n-octyl phosphine oxide. This oxidation reaction may affect its performance and application in specific reactions.
In terms of coordination ability, the phosphorus atoms of tri-n-octyl phosphine can be used as ligands to coordinate with metal atoms by lone pair electrons to form metal complexes. Such complexes are of great significance in the field of catalysis and can be used for homogeneous catalytic reactions, which have an impact on reaction activity and selectivity.
In organic synthesis, tri-n-octyl phosphine can act as a reducing agent and participate in the reduction reaction of some organic compounds. For example, it can reduce some compounds containing carbonyl groups to corresponding alcohols.
In the field of materials science, trioctyl phosphine can be used to prepare nanomaterials such as quantum dots. It can act as a surfactant or ligand in the reaction system to regulate the growth, size and morphology of nanomaterials, thereby affecting the optical and electrical properties of nanomaterials.

Tri-n-octylphosphine is an important chemical reagent in the field of organic synthesis and materials science, and its uses are quite wide. The following is a detailed description.
First, in the field of quantum dot synthesis, tri-n-octyl phosphine is a key ligand. Quantum dots, nanoscale semiconductor crystals, have wide application prospects in light emitting diodes, solar cells, biological imaging and many other fields due to their unique optical and electrical properties. Tri-n-octyl phosphine can interact with the atoms on the surface of quantum dots to form an organic ligand coating layer on its surface. This coating layer can not only effectively inhibit the generation of non-radiative recombination centers on the surface of quantum dots, but also greatly improve the fluorescence quantum yield of quantum dots; and can enhance the dispersion and stability of quantum dots in organic solvents, so that quantum dots are uniformly dispersed in solution without agglomeration, thus ensuring that their excellent properties can be fully exerted.
Second, in the metal organic chemical vapor deposition (MOCVD) process, tri-n-octylphosphine also plays an indispensable role. MOCVD is an important technology for preparing high-quality semiconductor thin films and is widely used in the fabrication of integrated circuits, optoelectronic devices, etc. As a phosphorus source, tri-n-octylphosphine can provide phosphorus for the grown semiconductor thin films. Under high temperature and chemical reaction conditions, tri-n-octylphosphine decomposes, releasing phosphorus atoms, participating in the growth process of semiconductor thin films, precisely controlling the chemical composition and crystal structure of thin films, and then preparing semiconductor materials that meet specific requirements.
Third, in organic synthesis reactions, tri-n-octylphosphine often acts as a catalyst or ligand. Due to its lone pair of electrons on phosphorus atoms, tri-n-octylphosphine has a certain electron donor ability and can form stable coordination bonds with metal atoms. In this way, it can regulate the activity and selectivity of metal catalysts. For example, in some transition metal-catalyzed coupling reactions, trioctyl phosphine is combined with metal catalysts as a ligand, which can change the electron cloud density and steric resistance of the metal center, make the reaction conditions milder, improve the reaction yield and selectivity, and help synthesize various complex organic compounds, providing strong support for the development of organic synthesis chemistry.

Tri-n-octylphosphine is tri-n-octylphosphine. Although the synthesis method of tri-n-octylphosphine is not detailed in ancient books, today's academic circles often follow the following path.
First take an appropriate amount of n-octanol, place it in a reactor, and add a catalyst, such as metal oxides, to promote its reaction. Then introduce phosphorus halide, such as phosphorus trichloride, and under a specific temperature and pressure, the two will react. In this process, the temperature must be carefully controlled, about hundreds of degrees Celsius. If it is too high, side reactions will occur frequently, and if it is too low, the reaction will be slow. The pressure should not be ignored, and it should be maintained within an appropriate range to facilitate the forward reaction. < Br >
After the reaction is completed, the product may contain impurities, which need to be separated and purified. The commonly used distillation method separates tri-n-octylphosphine from impurities according to the boiling point of each component. During distillation, temperature and vacuum are the key, and precise regulation is required to obtain a pure product.
Or there are other raw materials synthesized by other reaction paths, such as organic phosphorus compounds and halogenated hydrocarbons under the catalysis of bases. However, these methods also have their own advantages and disadvantages, and need to be selected according to the specific situation. The whole process of synthesis requires extremely high requirements in terms of the purity of raw materials, precise control of reaction conditions, and fine post-processing, so as to obtain high-quality tri-octylphosphine.

For Tri-n-octylphosphine, chemical substances are also important during storage and transportation.
Bear the brunt. When storing, choose a cool, dry and well-ventilated place. The cover may be disturbed by temperature and humidity due to its nature. If it is placed in a place with high temperature and humidity, it may deteriorate. For example, if it is placed under the hot sun, the temperature rises, or it causes chemical changes, which will damage its quality.
Furthermore, the place of storage must be kept away from fires and heat sources. This substance may be flammable, and in case of open flames or hot topics, it is easy to cause fire. Therefore, in the warehouse, fireworks are strictly prohibited, and fire protection facilities should also be complete.
During transportation, the packaging must be solid and sealed. To prevent leakage, pollute the environment, and endanger the safety of transportation personnel. Packaging materials must be wear-resistant and corrosion-resistant to ensure stability during transportation.
In addition, transportation vehicles should also be selected carefully. Avoid co-transportation with oxidants, acids, etc., to prevent violent chemical reactions. During transportation, drivers and escorts must always be vigilant to pay attention to any abnormal conditions.
All of these are the key to the storage and transportation of Tri-n-octylphosphine, and must not be slack to ensure safety.

The market price range of Tri-n-octylphosphine (tri-n-octylphosphine) varies due to many factors. Its preparation process is complex, the cost of raw materials is high, and the market demand is mostly concentrated in high-end fields, such as semiconductor quantum dot preparation, which all affect its price.
In experimental-level small-scale procurement scenarios, if the purity reaches 98% or more, the price per gram may be in the range of 500 to 1,000 yuan. Because in small batch production, the cost of equipment, labor, etc. is allocated to the unit product, resulting in high prices.
If it is purchased in large quantities for industrial grade, the price may be significantly reduced. If the purchase quantity reaches the kilogram level and the purity is about 95%, the price per gram may fall in the range of 200 to 500 yuan. Large-scale production can reduce unit production costs, but a slight decrease in quality requirements also affects prices.
Market prices are also subject to fluctuations in supply and demand. If the semiconductor industry is booming at a certain time, the demand for Tri-n-octylphosphine will increase sharply, and the supply will not keep up in time, the price will rise; conversely, when the demand is weak, the price may be lowered. And different supplier pricing strategies are also the reason for price differences.