Qidi Chemical

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α-Methylstyrene

Qidi Chemical

α-Methylstyrene
Specifications

HS Code

915380

Chemical Formula C9H10
Molar Mass 118.177 g/mol
Appearance Colorless to yellow - liquid
Odor Characteristic aromatic odor
Density 0.906 g/cm³ at 20 °C
Boiling Point 165 - 169 °C
Melting Point -23 °C
Flash Point 48 °C
Solubility In Water Insoluble
Vapor Pressure 1.33 kPa at 43.2 °C
Refractive Index 1.536 at 20 °C

As an accredited α-Methylstyrene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

Packing & Storage
Packing 5 - gallon drum packaging for α - Methylstyrene, containing 18.9 liters.
Storage α -Methylstyrene should be stored in a cool, well - ventilated area, away from heat, sparks, and open flames. It should be stored in tightly - sealed containers made of suitable materials like steel or certain plastics to prevent leakage. Keep it separate from oxidizing agents and incompatible substances. Regularly check storage conditions to ensure product integrity.
Shipping α -Methylstyrene is shipped in accordance with strict chemical transportation regulations. It's usually in specialized containers to prevent leakage. Temperature and ventilation are monitored during transit to ensure safe shipping of this reactive chemical.
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α-Methylstyrene α-Methylstyrene
General Information
Historical Development
I have tried to study α-Methylstyrene, and the evolution of its history is very interesting. In the past, I have tried my best to explore the method of preparing this thing. At the beginning, the technology was not refined, and the quantity produced was small and the quality was not pure. However, craftsmen and scholars did not give up studying, and over the years, the preparation technique has become more and more refined. Since its initial appearance in the world, it is widely used today, and the changes during this period cannot be hidden by a word. The improvement of the preparation process, such as the crude method, has gradually become a fine process, and the amount of production has also increased greatly. The use is also increasing, and it has emerged in various industrial fields. This is all due to the unremitting efforts of predecessors, in order to have the development of α-Methylstyrene today. The progress of its history is actually the result of the integration of technology and wisdom.
Product Overview
Alpha-methylstyrene is also an organic compound. It has a clear color and a specific taste. It is a liquid at room temperature and is flammable.
This compound has a wide range of uses and is particularly important in the preparation of polymer materials. Using it as a monomer, through polymerization, polymers with unique properties can be prepared. Such polymers are used in plastics, rubber and many other fields, which can increase the strength and heat resistance of materials.
The method of preparing alpha-methylstyrene is mostly obtained by the oxidation of cumene. However, when preparing, it is necessary to pay attention to the reaction conditions, temperature, catalyst dosage, etc. will affect the purity and yield of the product.
Overall, alpha-methylstyrene plays an important role in the chemical industry, and with the advance of science and technology, its application prospects will also be broader.
Physical & Chemical Properties
Alpha-Methylstyrene has its unique physical and chemical properties. Its shape is like a colorless and transparent liquid with a special odor. The boiling point is about 165 ° C, and the density is slightly lighter than that of water. In terms of chemical properties, because it contains carbon-carbon double bonds, it is active and easy to react with addition and polymerization. It can be added with various electrophilic reagents, such as hydrogen halide, halogen, etc. And under appropriate conditions, it can self-polymerize to form a polymer. It has good solubility and can be miscible in most organic solvents, such as ethanol, ether, etc. However, because of its volatility, when using it, pay attention to ventilation, and because of its flammability, it must also avoid open flames and hot topics to prevent fire. This is all important for the materialization properties of α-Methylstyrene.
Technical Specifications & Labeling
Nowadays, there are products of α-Methylstyrene, and its technical regulations and identification (product parameters) are the key. Looking at this product, the technical regulations need to explain the preparation method, from the selection of raw materials to the reaction conditions, all should be detailed. Such as the purity geometry of raw materials, the value of reaction temperature and pressure to be controlled, and all details should not be missed.
Identification (product parameters) cannot be ignored, which is related to the quality of the product. Such as the value of purity, the content of impurities, physical properties such as color, melting point, boiling point, etc., should be accurately identified. In this way, the user can understand its characteristics and make good use of it. Following this technical specification and accurate marking, α-Methylstyrene products can be used to demonstrate their effectiveness in various fields.
Preparation Method
In the process of preparing α-methyl styrene, the raw materials and production process are the key. Benzene and ethylene are used as the initial raw materials, and ethylbenzene is obtained by alkylation. This step requires the selection of suitable catalysts, such as molecular sieve catalysts, to effectively react under specific temperatures and pressures to increase the yield of ethylbenzene.
Then, ethylbenzene is converted into α-methyl styrene through dehydrogenation. This reaction is usually carried out with iron oxide catalysts at high temperatures and in the presence of appropriate amounts of water vapor. Water vapor can help maintain the activity of the catalyst and inhibit side reactions.
The reaction process must be precisely controlled, and the quality and yield of the product will be affected from the ratio of raw materials, reaction temperature, pressure and residence time. And a perfect reaction monitoring and regulation mechanism should be established to ensure the stability of each parameter, so as to achieve the purpose of efficient preparation of α-methylstyrene.
Chemical Reactions & Modifications
After studying chemical substances, I recently focused on the product of α-Methylstyrene. Its chemical reaction is related to material changes, and it is not easy to optimize.
Looking at the reaction, the control of conditions is the key. If the temperature and pressure are slightly deviated, the quality and quantity of the product will be affected. If the temperature is too high, the reaction will be too fast, side reactions will occur frequently, and the product will be impure; if the temperature is too low, the reaction will be slow and time-consuming. The same is true for the pressure. If the pressure is not appropriate, the reaction will be difficult to achieve expectations.
In order to improve, try to change the reaction medium and choose the appropriate catalyst. After many attempts, there is a catalyst that can promote the reaction to be efficient, and the rate of product will also increase. And optimize the reaction process, remove tedious steps, save resources, and improve efficiency. This is all for the fickle chemical reaction, so that the performance of α-Methylstyrene products is better, so as to meet all needs.
Synonyms & Product Names
Nowadays, there is a product name α-Methylstyrene, its synonymous name, and it is also an important research place. It covers the field of chemical industry and has various names. Or cloud α-methylstyrene, which is named according to its chemical structure, indicating that it is a derivative of styrene and has methyl substitution at the α position.
Or there are those who call it in the name of business. Each manufacturer has different trade names in recognition of its characteristics. However, its essence is α-Methylstyrene. In the academic and industry, it is crucial to clarify its synonymous name and trade name. This is related to the accuracy of research and the smoothness of trade. When scholars study its nature and use, they must confirm that its name is correct; when merchants trade, they also need to match the name. It is to explore the synonymous name and trade name of α-Methylstyrene, which is an indispensable thing for chemical research and industrial development.
Safety & Operational Standards
"Alpha-Methylstyrene Product Safety and Operating Specifications"
Alpha-Methylstyrene is an important raw material for the chemical industry. It is active and widely used. However, safety and operating standards are of paramount importance when it comes to production, storage and use.
The first word is safety. This substance is flammable and is easily burned and exploded in case of open flames and hot topics. Therefore, in the place of storage, it should be kept away from fire and heat sources, and it must be well ventilated. The temperature of the warehouse should be controlled within a suitable range to prevent it from evaporating and accumulating due to excessive temperature, which will cause danger. Furthermore, its vapor and air can form an explosive mixture, so fireworks should be strictly prohibited in the place, and complete fire protection facilities, such as fire extinguishers, fire sand, etc. should be equipped for emergencies.
As for the operating specifications. Operators must be professionally trained and familiar with its characteristics and operating procedures. When using, handle it with care to avoid damage and leakage of the container. If it needs to be transferred, the equipment used must be grounded to prevent static electricity from causing accidents. In the production process, the reaction conditions need to be precisely controlled, and the temperature, pressure and other parameters may cause the reaction to go out of control. In addition, the workplace should be equipped with effective ventilation devices to reduce the concentration of the substance in the air and protect the health of the operator. In the event of a leak, irrelevant personnel should be quickly evacuated and access should be strictly restricted. Emergency responders need to wear protective equipment, do not let leaks come into contact with combustible substances, and use appropriate materials to contain and handle them. Do not act rashly and cause the harm to expand.
In short, in the related activities of α-methylstyrene, strictly abide by safety and operating standards in order to achieve stable production and personnel safety.
Application Area
Alpha-Methylstyrene is also a special product of chemistry. Its application is not limited to the field of engineering, and it is often used as a raw material for polymeric materials. With its specialization, the aggregated materials have excellent performance, and can be used for manufacturing plastic materials, such as high-quality plastic parts. It can also be used in the field of materials. Alpha-Methylstyrene is also wonderfully used. Adding it to the material can increase its adhesion and wear resistance, making it more resistant to rain erosion and external wear. It is used for building materials, gold anti-wear materials, etc., and can be used for a long time.
Furthermore, in terms of adhesive properties, α-Methylstyrene can improve its adhesive properties, increase its viscosity and weather resistance, and is used in the bonding of wood, gold, plastics, etc. It is indispensable for manufacturing.
Research & Development
Since modern times, chemical refinement, and various substances have been studied in greater detail. Today, when it comes to α-Methylstyrene, scholars study it carefully and strive to enter the market.
α-Methylstyrene is unique in nature and has a wide range of uses. In various industrial fields, it can be used as a raw material or as an auxiliary agent, and the effect is significant. However, its research and development road is not achieved overnight.
Scientists have devoted themselves to exploring its synthesis method and optimizing its process. Hope to use better methods to increase its output and improve its quality. In the reaction conditions, carefully study, temperature, pressure, catalyst and other factors are carefully considered. After repeated tests, repeated defeats and battles, and finally gains. The synthesis method is gradually improving, and the quality of the product is also steadily improving.
The research and development of α-Methylstyrene has made great progress. However, the road of scientific research is long, and unremitting exploration is still needed to seek more breakthroughs, seek the prosperity of the industry, and promote the progress of science and technology.
Toxicity Research
The toxicity of methyl-methylstyrene is quite important. Methylstyrene is also a chemical substance. Looking at its poison, there are many living things involved.
Taste it with insects, and see that it touches it, or the action is abnormal, or the vitality is gradually diminishing. And test it with mice, feeding it with food containing this thing, for a long time, the body will be sick, the viscera or damage.
And if this thing is in the air, if a person inhales it, the nose and throat are uncomfortable, it will stay on its side for a long time, or cause illness in the lungs. If it touches the body, the skin may be itchy or red.
is to study its toxicity and understand its harm. It is essential to protect and use regulations. Make sure that workers are safe, the environment is clean, and the poison will not harm everyone.
Future Prospects
The future is about α-Methylstyrene products. I look at this industry, and the prospects are promising. α-Methylstyrene is widely used in the field of chemical industry, and can produce all kinds of high-quality products. Today's technology is becoming more and more exquisite, the yield is gradually increasing, and the quality is also excellent.
Looking forward to the future, the more advanced technology, or the new process, will greatly reduce the cost and double the efficiency. And the market demand will also expand with the changes of the world. In the rubber, plastics, coatings and other industries, there are new needs.
We should be enterprising, study unremitting, and explore new paths to cope with future changes. In time, α-Methylstyrene products will be able to bloom their brilliance, contributing to the prosperity of the chemical industry, reaching an unprecedented level, and becoming the cornerstone of our future.
Where to Buy α-Methylstyrene in China?
As a trusted α-Methylstyrene manufacturer, we deliver: Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements. Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery. Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
Frequently Asked Questions

As a leading α-Methylstyrene supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

What are the main uses of α-Methylstyrene?
Alpha-methylstyrene, as well as organic compounds, has a wide range of uses and is used in various fields of industry. First, in the preparation of polymers, this is an important monomer. From its polymerization, polyalpha-methylstyrene can be obtained. This polymer has hot topic stability and good mechanical properties, and can be used to manufacture plastic products such as electronic component shells and automotive parts. Because of its good thermal stability, it can maintain stable performance in higher temperature environments without easy deformation and damage, and is quite suitable for industries such as electronics and automobiles that require strict material thermal stability. Second, in the field of coatings and adhesives, alpha-methylstyrene also plays an important role. Introducing it into the formulation of coatings and adhesives can improve the hardness, wear resistance and chemical corrosion resistance of both. After this improvement, the coating can protect the surface of the coated object for a longer time and resist external environmental erosion; the adhesive can enhance the bonding strength, make the bonding more firm and lasting, and is widely used in construction, furniture manufacturing and other industries. Third, in synthetic rubber, α-methylstyrene can be used as a modifier. Adding an appropriate amount of α-methylstyrene can optimize the properties of synthetic rubber, such as improving its aging resistance and oil resistance. This modified rubber is mostly used in the manufacture of rubber products such as tires and seals, which can significantly prolong the service life of the product and improve its performance under complex working conditions. Fourth, α-methylstyrene also has a place in fragrance synthesis. Due to its special chemical structure, it can be converted into a compound with a unique aroma through a specific chemical reaction, which is used to prepare various flavors and fragrances, adding a unique aroma to the food, cosmetics and other industries.
What are the physical properties of α-Methylstyrene?
Alpha-methylstyrene is also an organic compound. Its physical properties are quite impressive, as detailed below. Looking at its morphology, under room temperature and pressure, alpha-methylstyrene is in the shape of a colorless and transparent liquid, which is externally visible. As for the smell, it has an irritating aromatic smell, and its unique smell can be sensed by smelling, which can be an important characteristic when distinguishing this substance. When it comes to the boiling point, it is about 165.3 ° C. The boiling point is also the temperature limit for the transformation of a substance from a liquid state to a gaseous state. When the ambient temperature rises to 165.3 ℃ ,α - methylstyrene gradually changes from liquid to gaseous state. This temperature characteristic is crucial in chemical production and related experiments, as well as in the separation and purification of substances. Its melting point is about -23 ° C. At the melting point, the critical temperature for solid to liquid state. In an environment below -23 ° C, α-methylstyrene will exist in solid form, and if the temperature is higher than this value, it will gradually melt into a liquid state. This characteristic is related to its physical form and application at different temperatures. The density of α-methylstyrene is about 0.906 g/cm ³, which indicates the mass of the substance per unit volume. Compared with the density of water, the difference between its density and water can be known, which is of great significance for judging its distribution in practical scenarios such as liquid-liquid mixing and stratification. Furthermore, its solubility is also an important physical property. α-methylstyrene is insoluble in water, but it can be miscible with most organic solvents such as ethanol, ether, acetone, etc. This solubility characteristic makes it possible to reasonably select solvents according to their miscibility with different solvents in the fields of chemical synthesis and coating preparation to achieve specific process goals.
What are the chemical properties of α-Methylstyrene?
Alpha-methyl styrene is also an organic compound, and its chemical properties can be investigated. This substance has a carbon-carbon double bond, and this functional group gives it active reactivity. In addition to the addition reaction, it can be added with many electrophilic reagents. In the case of hydrogen halides, such as hydrogen chloride, according to the Markov rule, hydrogen is added to the double-bonded carbon containing more hydrogen, and chlorine is added to the other end to obtain halogenated hydrocarbons. With halogen elementals, such as bromine, under appropriate conditions, the double bond is opened, and the bromine atom is added to the two carbons to form a dibromide. This reaction can often be used to test the existence of its double bond. And because of its alkenyl structure, polymerization can occur. Under the action of the initiator, the double bonds of many α-methylstyrene monomers are broken, connected to each other, and polymerized into high-molecular polymers. It has a wide range of uses in the field of materials science, and can be used to prepare plastics and other materials with specific properties. In addition, the styrene ring of α-methylstyrene also has certain activity. The hydrogen on the styrene ring can be replaced by certain groups. For example, under appropriate catalysts and conditions, aromatic electrophilic substitution reactions such as halogenation and nitrification can occur. However, due to the electron-induced effect and superconjugation effect of α-methyl, the electron cloud density of the styrene ring increases, and the reactivity changes compared with benzene. The substitution position is also affected by it, and it tends to be ortho and para-substitution. In summary, α-methylstyrene has rich and diverse chemical properties due to the existence of double bonds and benzene rings, which is of great significance in the fields of organic synthesis and material preparation.
What are the production methods of α-Methylstyrene?
Alpha-methylstyrene is also an organic compound, and there are three methods for its preparation. One is the oxidation of cumene. This is a classic method, using cumene as raw material, first oxidized by air to obtain hydrogen peroxide cumene, and then using acid as a catalyst to rearrange and decompose, then obtain alpha-methylstyrene, and also produce phenol. In this process, the air oxidation step needs to be controlled within an appropriate range to ensure a smooth reaction, and when the acid catalyzes rearrangement, the type and dosage of acid are paid attention to, so that the purity and yield of the product are good. The second is the styrene and methanol method. Under the action of the catalyst, styrene and methanol are alkylated to obtain α-methylstyrene. The catalyst is crucial, and high activity and selectivity are required to improve the production efficiency of the product, and the reaction conditions such as temperature and pressure also need to be carefully adjusted to achieve the optimal reaction effect. The third is the dehydration of methyl benzyl alcohol. Methylbenzyl alcohol can also be prepared by dehydration under suitable catalyst and reaction conditions. The key is to choose an efficient dehydration catalyst, and attention should be paid to the removal of moisture during the reaction to promote the reaction in the direction of product formation and improve the yield. These three methods have their own advantages and disadvantages. In actual production, it is necessary to comprehensively consider the availability of raw materials, cost, product requirements and other factors to choose the appropriate one.
What should be paid attention to when storing and transporting α-Methylstyrene?
Alpha-methylstyrene is an organic compound. When storing and transporting, all kinds of matters must not be ignored. The first thing to pay attention to is its stability. This substance is chemically active and prone to polymerization when exposed to heat, light or contact with specific substances. Therefore, it should be stored in a cool and ventilated place, away from fire and heat sources, and protected from light. If the storage environment temperature is too high or the light is too strong, it may cause polymerization, damage its quality, or even cause safety risks. Furthermore, alpha-methylstyrene is flammable. When transporting and storing, there should be no open flames, hot topics and other fire sources around. Be sure to handle it lightly during handling to prevent material leakage caused by damage to the container and fire disaster. In addition, α-methylstyrene is also harmful to the human body. Its vapor or fog is irritating to the eyes and upper respiratory tract, and high-concentration exposure has an anesthetic effect on the central nervous system. Storage and transportation personnel should be equipped with corresponding protective equipment, such as gas masks, chemical safety protective glasses, anti-poison penetration work clothes, etc., to avoid contact and inhalation damage. In addition, storage containers should be well sealed to prevent leakage. When transporting, ensure that the container does not leak, collapse, fall, or damage. And transportation vehicles should be equipped with corresponding varieties and quantities of fire-fighting equipment and leakage emergency treatment equipment. In summary, alpha-methylstyrene should be stored and transported with caution in terms of stability, flammability, human hazards, and container sealing to ensure safety.