hesheng chemical
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Tetraethyl Silicate
hesheng chemical
|
HS Code |
509708 |
| Name | Tetraethyl Silicate |
| Chemical Formula | C8H20O4Si |
| Molar Mass | 208.33 g/mol |
| Appearance | Colorless liquid |
| Odor | Faint, ethereal odor |
| Density | 0.935 g/cm³ |
| Boiling Point | 165 - 169 °C |
| Melting Point | -77 °C |
| Solubility In Water | Reacts with water |
| Solubility In Organic Solvents | Soluble in ethanol, ether, benzene |
| Vapor Pressure | 1.33 kPa (20 °C) |
| Flash Point | 51 °C |
| Refractive Index | 1.392 (20 °C) |
As an accredited Tetraethyl Silicate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
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Competitive Tetraethyl Silicate prices that fit your budget—flexible terms and customized quotes for every order.
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Tel: +8615365036030
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Historical Development
"Remembering the Development of Ethyl Silicate"
In the past, the field of chemistry has not been explored. Ethyl silicate, scientific name Tetraethyl Silicate, is just beginning to emerge. Early years, the Fang family was in the study of chemistry, and gradually came into contact with this thing. At that time, the cognition was still shallow, but the heart of curiosity drove it to explore.
After years, all the sages worked hard to study. From ignorance to gradual understanding of its nature, in the theory of reaction and preparation methods, all have made progress. At the beginning of preparation, it was difficult and the yield was quite low. However, scholars were not discouraged and tried new ways again and again.
Years have passed, and technology has improved day by day. The yield and purity of ethyl silicate have improved greatly from the initial simplicity to the later refinement. Its use in industry and scientific research is also becoming more and more extensive. Looking at its development path, it is gathered by the efforts of many sages, and the path of chemistry is clearer.
In the past, the field of chemistry has not been explored. Ethyl silicate, scientific name Tetraethyl Silicate, is just beginning to emerge. Early years, the Fang family was in the study of chemistry, and gradually came into contact with this thing. At that time, the cognition was still shallow, but the heart of curiosity drove it to explore.
After years, all the sages worked hard to study. From ignorance to gradual understanding of its nature, in the theory of reaction and preparation methods, all have made progress. At the beginning of preparation, it was difficult and the yield was quite low. However, scholars were not discouraged and tried new ways again and again.
Years have passed, and technology has improved day by day. The yield and purity of ethyl silicate have improved greatly from the initial simplicity to the later refinement. Its use in industry and scientific research is also becoming more and more extensive. Looking at its development path, it is gathered by the efforts of many sages, and the path of chemistry is clearer.
Product Overview
《四乙氧基硅烷产品概述》
四乙氧基硅烷，古言称之有奇用。其色清而质纯，性稳于常状。此乃有机硅之妙品，于化工诸域显其能。
观其制备，工艺精巧。以硅与乙醇为基，经数道妙法，方得此纯物。其在材料之域，功不可没。可作粘结之剂，使物相附而坚；亦为涂层之质，覆于器物，增其抗蚀耐磨之性。
且四乙氧基硅烷于合成特种玻璃，能改其性，使其通透且强韧。于催化之途，亦有辅佐之功，助反应顺遂，提效增速。实乃化工之瑰宝，用途广而效卓，为诸般技艺增色添彩。
四乙氧基硅烷，古言称之有奇用。其色清而质纯，性稳于常状。此乃有机硅之妙品，于化工诸域显其能。
观其制备，工艺精巧。以硅与乙醇为基，经数道妙法，方得此纯物。其在材料之域，功不可没。可作粘结之剂，使物相附而坚；亦为涂层之质，覆于器物，增其抗蚀耐磨之性。
且四乙氧基硅烷于合成特种玻璃，能改其性，使其通透且强韧。于催化之途，亦有辅佐之功，助反应顺遂，提效增速。实乃化工之瑰宝，用途广而效卓，为诸般技艺增色添彩。
Physical & Chemical Properties
《论硅酸乙酯之物性与化性》
Tetraethyl Silicate，即硅酸乙酯，此物性与化性颇值研讨。其为无色透明液体，具特殊气味。就物理性质而言，沸点适宜，在特定温度下可平稳气化，且与多数有机溶剂互溶，利于调配使用。其密度适中，于各类体系中能良好分散。
论及化学性质，硅酸乙酯遇水可发生水解反应，生成相应的硅酸及乙醇。此反应在诸多化学工艺中为关键步骤。且其能参与缩聚反应，构建复杂的硅氧网络结构，于材料合成领域应用广泛。因这些独特的物理化学性质，硅酸乙酯在涂料、黏合剂及催化剂载体等方面皆展现出重要价值，对推动相关行业发展意义非凡。
Tetraethyl Silicate，即硅酸乙酯，此物性与化性颇值研讨。其为无色透明液体，具特殊气味。就物理性质而言，沸点适宜，在特定温度下可平稳气化，且与多数有机溶剂互溶，利于调配使用。其密度适中，于各类体系中能良好分散。
论及化学性质，硅酸乙酯遇水可发生水解反应，生成相应的硅酸及乙醇。此反应在诸多化学工艺中为关键步骤。且其能参与缩聚反应，构建复杂的硅氧网络结构，于材料合成领域应用广泛。因这些独特的物理化学性质，硅酸乙酯在涂料、黏合剂及催化剂载体等方面皆展现出重要价值，对推动相关行业发展意义非凡。
Technical Specifications & Labeling
《Tetraethyl Silicate 技术规格与标识（产品参数）》
Tetraethyl Silicate，即硅酸四乙酯，其技术规格颇为关键。观其性状，应为无色透明液体，具特殊气味。此品沸点约 165℃，相对密度在 0.93 - 0.94 之间。
就标识而言，产品包装之上，当明书“Tetraethyl Silicate”字样，且附警示标识，以告其具一定挥发性与刺激性。包装需严密封口，以防泄漏。其产品参数亦当精准标注，如纯度不得低于 99%，含水量务必少于 0.1%，此皆为确保产品品质之关键。
Tetraethyl Silicate，即硅酸四乙酯，其技术规格颇为关键。观其性状，应为无色透明液体，具特殊气味。此品沸点约 165℃，相对密度在 0.93 - 0.94 之间。
就标识而言，产品包装之上，当明书“Tetraethyl Silicate”字样，且附警示标识，以告其具一定挥发性与刺激性。包装需严密封口，以防泄漏。其产品参数亦当精准标注，如纯度不得低于 99%，含水量务必少于 0.1%，此皆为确保产品品质之关键。
Preparation Method
In order to make Tetraethyl Silicate, the raw materials and the production process are the key. In terms of raw materials, pure materials such as silicon source and ethanol should be taken. The production process is as follows: first mix the silicon source and ethanol in a specific ratio and stir evenly. This is the starting step.
The reaction step needs to be carried out at a suitable temperature and pressure. It is common to heat moderately to promote the reaction between the two. During this time, pay close attention to the reaction process and do not make it excessive or insufficient.
The catalytic mechanism is also indispensable. A specific catalyst is added to speed up the reaction rate and improve the purity of the product. In this way, after careful operation and strict control of each link, a good quality Tetraethyl Silicate product can be obtained.
The reaction step needs to be carried out at a suitable temperature and pressure. It is common to heat moderately to promote the reaction between the two. During this time, pay close attention to the reaction process and do not make it excessive or insufficient.
The catalytic mechanism is also indispensable. A specific catalyst is added to speed up the reaction rate and improve the purity of the product. In this way, after careful operation and strict control of each link, a good quality Tetraethyl Silicate product can be obtained.
Chemical Reactions & Modifications
Tetraethyl silicate has attracted much attention in chemical research. Its chemical reaction is particularly critical and relates to the improvement of product properties.
Looking at the reaction, hydrolysis and condensation become common. When exposed to water, the ethoxy group is gradually replaced by a hydroxyl group, and then condensation and cross-linking, forming a silicon-oxygen bond structure. This process is fine and complex, and can be controlled by temperature, humidity, and catalyst. Moderate temperature rise, or the addition of a specific catalyst, can promote the speed of hydrolysis and condensation, but then it will go out of control and cause uneven products.
In terms of its modification, doping other substances is a common method. Adding metal ions can give material-specific properties and increase heat and wear resistance. With the modification of organic groups, it can adjust the surface activity and change the hydrophilic water. In the fields of coatings, adhesives, etc., it can be used for modification to expand its use and develop its capabilities, adding to the refinement of chemical products.
Looking at the reaction, hydrolysis and condensation become common. When exposed to water, the ethoxy group is gradually replaced by a hydroxyl group, and then condensation and cross-linking, forming a silicon-oxygen bond structure. This process is fine and complex, and can be controlled by temperature, humidity, and catalyst. Moderate temperature rise, or the addition of a specific catalyst, can promote the speed of hydrolysis and condensation, but then it will go out of control and cause uneven products.
In terms of its modification, doping other substances is a common method. Adding metal ions can give material-specific properties and increase heat and wear resistance. With the modification of organic groups, it can adjust the surface activity and change the hydrophilic water. In the fields of coatings, adhesives, etc., it can be used for modification to expand its use and develop its capabilities, adding to the refinement of chemical products.
Synonyms & Product Names
Tetraethoxysilane, also known as ethyl silicate, English name is Tetraethyl Silicate. This substance is quite important in the chemical industry. Its name is ethyl silicate, because the structure contains silicon, oxygen and ethyl ester groups. In the past, many craftsmen have applied its similar characteristics in craftsmanship. Although there was no such precise chemical understanding in ancient times, it was also noticed in practice that certain materials can be specially treated to obtain unique effects, among which there may be the role of ethyl silicate. In different industries, its nicknames are different. In some ancient formula records, there are also people who call it ethoxysilicate, all of which refer to this substance. As a key chemical raw material, it has an irreplaceable position in many fields, whether it is traditional craftsmanship or modern high-tech.
Safety & Operational Standards
"Tetraethoxysilane Safety and Operation Specifications"
Tetraethoxysilane, also known as ethyl silicate, is widely used in the chemical industry. However, it has special properties, so when operating, it is necessary to know the safety and operation specifications to ensure the safety of personnel and the smooth production.
In terms of safety, tetraethoxysilane is flammable, and it is easy to burn in case of open flames and hot topics. And its vapor and air can form explosive mixtures, so fireworks must be strictly prohibited in the workplace, and ventilation must be good to prevent the accumulation of flammable vapor. In addition, this substance has irritating effects on the eyes, respiratory mucosa and skin. Operators need to wear appropriate protective equipment, such as goggles, gas masks and protective clothing, to avoid direct contact. If you accidentally come into contact with the skin, you should immediately rinse with a large amount of flowing water; if it splashes into the eyes, you need to quickly rinse with flowing water or normal saline, and seek medical attention in time.
As far as operating norms are concerned, storage should be placed in a cool, dry and well-ventilated place, away from fire and heat sources, and stored separately from oxidants and acids. Do not mix storage. During use, the action should be gentle to prevent damage to the packaging and containers. Containers after use should not be discarded at will, and should be properly disposed of according to regulations to prevent environmental pollution.
In short, being familiar with the safety and operating practices of tetraethoxysilane is of great significance in ensuring personnel safety, maintaining production stability and protecting the environment. When operating, do not be negligent.
Tetraethoxysilane, also known as ethyl silicate, is widely used in the chemical industry. However, it has special properties, so when operating, it is necessary to know the safety and operation specifications to ensure the safety of personnel and the smooth production.
In terms of safety, tetraethoxysilane is flammable, and it is easy to burn in case of open flames and hot topics. And its vapor and air can form explosive mixtures, so fireworks must be strictly prohibited in the workplace, and ventilation must be good to prevent the accumulation of flammable vapor. In addition, this substance has irritating effects on the eyes, respiratory mucosa and skin. Operators need to wear appropriate protective equipment, such as goggles, gas masks and protective clothing, to avoid direct contact. If you accidentally come into contact with the skin, you should immediately rinse with a large amount of flowing water; if it splashes into the eyes, you need to quickly rinse with flowing water or normal saline, and seek medical attention in time.
As far as operating norms are concerned, storage should be placed in a cool, dry and well-ventilated place, away from fire and heat sources, and stored separately from oxidants and acids. Do not mix storage. During use, the action should be gentle to prevent damage to the packaging and containers. Containers after use should not be discarded at will, and should be properly disposed of according to regulations to prevent environmental pollution.
In short, being familiar with the safety and operating practices of tetraethoxysilane is of great significance in ensuring personnel safety, maintaining production stability and protecting the environment. When operating, do not be negligent.
Application Area
Tetraethoxysilane is an important chemical substance. Its application field is quite wide, and it has many functions in the field of material preparation. For example, when making ceramic materials, it can be used as a precursor to help form a fine structure and increase its performance. In the coating industry, adding it can change the adhesion and weather resistance of the coating, making it durable. In the field of electronics, it is a raw material for the manufacture of semiconductor devices, which is related to the performance of chips. And in the production of catalyst carriers, with its characteristics, it can stabilize the load of active components and improve catalytic efficiency. All these show that tetraethoxysilane has important functions in many application fields and is a key factor in the progress of the chemical industry.
Research & Development
Taste the wonders of chemical industry, and there are many categories. Today's words Tetraethyl Silicate are quite profound in the way of research and development. Its mild nature can be used in many fields. In the past, researchers were poor in their understanding, exploring its quality, and wanting to understand its use in industry and scientific research.
At first, I only knew the general idea of it, but after repeated study, I observed the change of its reaction and analyzed the micro of its structure. In the synthesis of materials, the texture will be stronger if you add it; in the preparation of coatings, the protection will be better if you use it.
Everyone works together to explore day and night, hoping to expand its use and increase its effectiveness. After years of precipitation, it has gradually become successful, and the application is more and more extensive. In the future, we should also make unremitting research to enable Tetraethyl Silicate to bloom more brightly on the path of development, and make new achievements for the scientific research industry.
At first, I only knew the general idea of it, but after repeated study, I observed the change of its reaction and analyzed the micro of its structure. In the synthesis of materials, the texture will be stronger if you add it; in the preparation of coatings, the protection will be better if you use it.
Everyone works together to explore day and night, hoping to expand its use and increase its effectiveness. After years of precipitation, it has gradually become successful, and the application is more and more extensive. In the future, we should also make unremitting research to enable Tetraethyl Silicate to bloom more brightly on the path of development, and make new achievements for the scientific research industry.
Toxicity Research
《论硅酸乙酯之毒性研究》
近世化学大兴，各类新物辈出，硅酸乙酯（Tetraethyl Silicate）其一也。此物于工业诸多领域，应用颇广。然其毒性之究，关乎工者康健，不可不察。
初，研其毒性，于密闭之器，置白鼠其中，以硅酸乙酯蒸汽漫之。少顷，白鼠多动不安，继而萎靡。数时后，部分白鼠呼吸急促，身颤不止。此为表象之征。
复析其理，硅酸乙酯入体，或经呼吸，或由皮肤。入体后，可扰脏腑之能。肺主气司呼吸，首当其冲，致气道不畅；肝者，主解毒之职，亦受其累，解毒之功渐衰。
综上，硅酸乙酯具毒性，于生产用之之际，当设良法防护，勿使工者受其害也。
近世化学大兴，各类新物辈出，硅酸乙酯（Tetraethyl Silicate）其一也。此物于工业诸多领域，应用颇广。然其毒性之究，关乎工者康健，不可不察。
初，研其毒性，于密闭之器，置白鼠其中，以硅酸乙酯蒸汽漫之。少顷，白鼠多动不安，继而萎靡。数时后，部分白鼠呼吸急促，身颤不止。此为表象之征。
复析其理，硅酸乙酯入体，或经呼吸，或由皮肤。入体后，可扰脏腑之能。肺主气司呼吸，首当其冲，致气道不畅；肝者，主解毒之职，亦受其累，解毒之功渐衰。
综上，硅酸乙酯具毒性，于生产用之之际，当设良法防护，勿使工者受其害也。
Future Prospects
今观 Tetraethyl Silicate 此物，其质精良，用途颇广。于化工之域，可作涂料、黏合剂之原料，性能卓越。展望未来，科技日新，其发展亦当可期。或于材料改性之道，有新突破，使材料具更佳之特性，应用范畴得以拓展。亦或在绿色化工之途，觅得良法，提升制备工艺之环保性，降低能耗。假以时日，必能于更多领域崭露头角，为吾辈带来更多福祉，犹如星辰璀璨，照亮未来发展之路径，开创新之辉煌篇章。
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What are the main uses of tetraethyl silicate?
Tetraethyl silane has a wide range of uses. In the industrial field, it is often used as a raw material for the preparation of silica sol and silica aerogel. Silica sol, in coatings, adhesives and many other industries, has the ability to thicken and improve adhesion, so tetraethoxysilane is a key starting material here. Aerogels have specific properties such as ultralight and heat insulation, and tetraethoxysilane is indispensable for their preparation.
Furthermore, in terms of material surface treatment, it also has great potential. With it as a precursor, a silicone film can be formed on the surface of the material through the reaction of hydrolysis and condensation. This film can enhance the material's wear resistance, corrosion resistance, and improve its waterproof performance. If metal materials are treated in this way, they can resist external environmental erosion and prolong the service life; the formation of this film on the surface of building materials can improve the waterproof and moisture-proof effect, making the building more durable.
In the semiconductor and microelectronics industries, tetraethoxysilane also plays an important role. It can be used in chemical vapor deposition processes to deposit silicon dioxide films on the surface of semiconductor chips. This film is the insulating layer of the chip, which isolates and protects the internal circuit of the chip. It is related to the performance and stability of the chip. It is an extremely important material in the chip manufacturing process.
In the field of optics, there are also many images. The refractive index, dispersion and other optical properties of optical glass can be controlled by the addition and reaction of tetraethoxysilane. Through its preparation, optical films can realize different optical functions such as anti-reflection and reflection, and are widely used in optical devices such as lenses and display screens.
Furthermore, in terms of material surface treatment, it also has great potential. With it as a precursor, a silicone film can be formed on the surface of the material through the reaction of hydrolysis and condensation. This film can enhance the material's wear resistance, corrosion resistance, and improve its waterproof performance. If metal materials are treated in this way, they can resist external environmental erosion and prolong the service life; the formation of this film on the surface of building materials can improve the waterproof and moisture-proof effect, making the building more durable.
In the semiconductor and microelectronics industries, tetraethoxysilane also plays an important role. It can be used in chemical vapor deposition processes to deposit silicon dioxide films on the surface of semiconductor chips. This film is the insulating layer of the chip, which isolates and protects the internal circuit of the chip. It is related to the performance and stability of the chip. It is an extremely important material in the chip manufacturing process.
In the field of optics, there are also many images. The refractive index, dispersion and other optical properties of optical glass can be controlled by the addition and reaction of tetraethoxysilane. Through its preparation, optical films can realize different optical functions such as anti-reflection and reflection, and are widely used in optical devices such as lenses and display screens.
What are the physical properties of tetraethyl silicate?
Tetraethyl silicate (Tetraethyl Silicate), also known as tetraethyl silicate, is an important silicone compound. Its physical properties are as follows:
Under normal temperature and pressure, this substance is in the state of a colorless transparent liquid, with a pure texture, no impurities visible to the naked eye, and good light transmittance.
Smell it, it has a special aromatic smell. This smell is not pungent, but it is quite unique and can be identified.
In terms of its volatility, this substance is highly volatile. In an open environment, it can quickly change from liquid to gaseous and dissipate in the air. This property makes it necessary to properly seal and store it during storage and use to prevent volatilization loss.
When it comes to solubility, tetraethoxysilane can be miscible with a variety of organic solvents, such as ethanol, ether, benzene, and other common organic solvents, all of which can dissolve with it to form a uniform and stable solution. However, its solubility in water is poor, and it is prone to hydrolysis in contact with water to generate corresponding silicic acid and ethanol.
The boiling point of tetraethoxysilane is about 168.8 ° C. At this temperature, the substance changes from liquid to gaseous state. Its melting point is about -77 ° C. When the temperature drops below the melting point, tetraethoxysilane will solidify into a solid state.
In addition, the density of tetraethoxysilane is slightly smaller than that of water, about 0.935g/cm ³. When mixed with water, it will float above the water surface, forming an obvious layering phenomenon.
Under normal temperature and pressure, this substance is in the state of a colorless transparent liquid, with a pure texture, no impurities visible to the naked eye, and good light transmittance.
Smell it, it has a special aromatic smell. This smell is not pungent, but it is quite unique and can be identified.
In terms of its volatility, this substance is highly volatile. In an open environment, it can quickly change from liquid to gaseous and dissipate in the air. This property makes it necessary to properly seal and store it during storage and use to prevent volatilization loss.
When it comes to solubility, tetraethoxysilane can be miscible with a variety of organic solvents, such as ethanol, ether, benzene, and other common organic solvents, all of which can dissolve with it to form a uniform and stable solution. However, its solubility in water is poor, and it is prone to hydrolysis in contact with water to generate corresponding silicic acid and ethanol.
The boiling point of tetraethoxysilane is about 168.8 ° C. At this temperature, the substance changes from liquid to gaseous state. Its melting point is about -77 ° C. When the temperature drops below the melting point, tetraethoxysilane will solidify into a solid state.
In addition, the density of tetraethoxysilane is slightly smaller than that of water, about 0.935g/cm ³. When mixed with water, it will float above the water surface, forming an obvious layering phenomenon.
What should be paid attention to when storing and transporting tetraethyl silane?
Tetraethoxysilane, its chemical properties are more active, and many aspects need to be paid attention to during storage and transportation.
When storing, the first environment is dry. Because it is easy to react with water, it will hydrolyze to form ethyl silicate polymers and ethanol in contact with water. If the environment is humid and moisture invades, it will cause material deterioration, so it should be stored in a dry, ventilated and moisture-proof place, such as a sealed warehouse equipped with desiccant.
Temperature control is also crucial. This substance is more sensitive to temperature, and high temperature will accelerate its reaction rate or cause adverse reactions such as polymerization, resulting in product quality damage. In general, it should be stored in a cool place, the temperature should be maintained at 5 ℃ - 25 ℃, and direct sunlight should be avoided, because light may also accelerate its chemical reaction.
The choice of storage containers should not be ignored. Corrosion-resistant containers should be selected, such as stainless steel or specific plastic containers. The acidic substances produced by hydrolysis can corrode ordinary metal containers, causing damage to the containers and material contamination.
When transporting, it is essential to ensure that the packaging is tight. Use packaging with good sealing performance to prevent leakage during transportation. At the same time, the transportation vehicle should be kept clean and dry to avoid contact with water and other substances that may react. During transportation, attention should also be paid to shock protection to prevent the packaging from breaking due to violent vibration.
In addition, fireworks should be strictly prohibited in transportation and storage places. Tetraethoxysilane is flammable, and it is dangerous to cause combustion and explosion in case of open flames, hot topics or oxidants. Staff need to be professionally trained and familiar with its characteristics and emergency treatment methods to ensure the safety of storage and transportation.
When storing, the first environment is dry. Because it is easy to react with water, it will hydrolyze to form ethyl silicate polymers and ethanol in contact with water. If the environment is humid and moisture invades, it will cause material deterioration, so it should be stored in a dry, ventilated and moisture-proof place, such as a sealed warehouse equipped with desiccant.
Temperature control is also crucial. This substance is more sensitive to temperature, and high temperature will accelerate its reaction rate or cause adverse reactions such as polymerization, resulting in product quality damage. In general, it should be stored in a cool place, the temperature should be maintained at 5 ℃ - 25 ℃, and direct sunlight should be avoided, because light may also accelerate its chemical reaction.
The choice of storage containers should not be ignored. Corrosion-resistant containers should be selected, such as stainless steel or specific plastic containers. The acidic substances produced by hydrolysis can corrode ordinary metal containers, causing damage to the containers and material contamination.
When transporting, it is essential to ensure that the packaging is tight. Use packaging with good sealing performance to prevent leakage during transportation. At the same time, the transportation vehicle should be kept clean and dry to avoid contact with water and other substances that may react. During transportation, attention should also be paid to shock protection to prevent the packaging from breaking due to violent vibration.
In addition, fireworks should be strictly prohibited in transportation and storage places. Tetraethoxysilane is flammable, and it is dangerous to cause combustion and explosion in case of open flames, hot topics or oxidants. Staff need to be professionally trained and familiar with its characteristics and emergency treatment methods to ensure the safety of storage and transportation.
What is the production method of tetraethyl silicate?
Tetraethyl silicate (Tetraethyl Silicate), the preparation method, although not detailed in ancient times, but today's industrial production method, there are probably two ways.
One is the hydrolysis of chlorosilane. Take silicon tetrachloride and anhydrous ethanol are mixed, placed in a reactor, and slowly drip into water. Silicon tetrachloride is hydrolyzed in contact with water, resulting in tetraethoxysilane and hydrogen chloride. The reaction formula is: $SiCl_ {4} + 4C_ {2} H_ {5} OH\ rightarrow Si (OC_ {2} H_ {5}) _ {4} + 4HCl $. This reaction is violent, and the generated hydrogen chloride is highly corrosive, so it needs to be carried out at low temperature and controlled speed. At the same time, the hydrogen chloride tail gas must be properly handled to prevent pollution. After the reaction is completed, the unreacted raw materials and by-products can be removed through distillation, rectification and other processes to obtain pure tetraethoxysilane.
The second is the alcoholysis method. Silicon powder and absolute ethanol are used as materials, and heated to a suitable temperature in the presence of a copper catalyst. Silicon powder reacts with ethanol to form an intermediate of ethoxysilane, and the intermediate reacts further to obtain tetraethoxysilane. In this process, the activity and dosage of the catalyst, the reaction temperature and time are all critical. If the temperature is too low, the reaction is slow; if the temperature is too high, the side reactions will increase. The general reaction process is more complicated, involving the gradual replacement of silicon and ethanol. The reaction product also needs to be separated and purified to obtain high-purity tetraethoxysilane. These two methods have their own advantages and disadvantages. The raw materials of the chlorosilane hydrolysis method are easy to obtain, but the treatment of by-products is difficult; the alcoholysis method is relatively environmentally friendly, but the reaction conditions are strict and the requirements for equipment and processes are high.
One is the hydrolysis of chlorosilane. Take silicon tetrachloride and anhydrous ethanol are mixed, placed in a reactor, and slowly drip into water. Silicon tetrachloride is hydrolyzed in contact with water, resulting in tetraethoxysilane and hydrogen chloride. The reaction formula is: $SiCl_ {4} + 4C_ {2} H_ {5} OH\ rightarrow Si (OC_ {2} H_ {5}) _ {4} + 4HCl $. This reaction is violent, and the generated hydrogen chloride is highly corrosive, so it needs to be carried out at low temperature and controlled speed. At the same time, the hydrogen chloride tail gas must be properly handled to prevent pollution. After the reaction is completed, the unreacted raw materials and by-products can be removed through distillation, rectification and other processes to obtain pure tetraethoxysilane.
The second is the alcoholysis method. Silicon powder and absolute ethanol are used as materials, and heated to a suitable temperature in the presence of a copper catalyst. Silicon powder reacts with ethanol to form an intermediate of ethoxysilane, and the intermediate reacts further to obtain tetraethoxysilane. In this process, the activity and dosage of the catalyst, the reaction temperature and time are all critical. If the temperature is too low, the reaction is slow; if the temperature is too high, the side reactions will increase. The general reaction process is more complicated, involving the gradual replacement of silicon and ethanol. The reaction product also needs to be separated and purified to obtain high-purity tetraethoxysilane. These two methods have their own advantages and disadvantages. The raw materials of the chlorosilane hydrolysis method are easy to obtain, but the treatment of by-products is difficult; the alcoholysis method is relatively environmentally friendly, but the reaction conditions are strict and the requirements for equipment and processes are high.
What is the market outlook for Tetraethyl Silicate?
Tetraethoxysilane, also known as ethyl orthosilicate, has a promising market prospect. Looking at the present, this substance has emerged in many fields and has great potential.
In the field of building materials, tetraethoxysilane is often used as a water repellent. Today's buildings have an increasing demand for waterproofing, which can penetrate into the interior of building materials, and through hydrolysis and condensation reactions, generate a silicone network structure with waterproof performance, which can effectively resist water erosion and prolong the service life of buildings. With the acceleration of urbanization, the number of buildings is increasing day by day, and the demand for high-quality water repellents is also increasing, creating a broad market space for tetraethoxysilane.
In the paint industry, tetraethoxysilane also plays an important role. It can be used as a coating additive to improve the adhesion, hardness and chemical resistance of coatings. With the improvement of people's requirements for coating quality, and the continuous expansion of the industrial and civil coatings market, the demand for additives that can improve the performance of coatings is also on the rise. The market share of tetraethoxysilane in this field is expected to grow steadily.
Furthermore, in the field of electronics industry, tetraethoxysilane is a key raw material for the preparation of semiconductor materials, optical fibers, etc. The rapid development of the electronics industry, the demand for semiconductor materials and optical fibers is exploding, which undoubtedly brings unprecedented opportunities for tetraethoxysilane.
However, the tetraethoxysilane market also faces some challenges. The production process may involve complex processes and high costs, which may pose certain obstacles to its large-scale promotion and application. However, with the progress of science and technology, the production process is gradually optimized, and the cost is expected to gradually decrease.
To sum up, although facing some challenges, with its wide application and important role in many fields such as construction, coatings, electronics, etc., the market prospect of tetraethoxysilane is still bright, and the future development potential is huge. It is expected to achieve more significant market achievements in the process of vigorous development of various related industries.
In the field of building materials, tetraethoxysilane is often used as a water repellent. Today's buildings have an increasing demand for waterproofing, which can penetrate into the interior of building materials, and through hydrolysis and condensation reactions, generate a silicone network structure with waterproof performance, which can effectively resist water erosion and prolong the service life of buildings. With the acceleration of urbanization, the number of buildings is increasing day by day, and the demand for high-quality water repellents is also increasing, creating a broad market space for tetraethoxysilane.
In the paint industry, tetraethoxysilane also plays an important role. It can be used as a coating additive to improve the adhesion, hardness and chemical resistance of coatings. With the improvement of people's requirements for coating quality, and the continuous expansion of the industrial and civil coatings market, the demand for additives that can improve the performance of coatings is also on the rise. The market share of tetraethoxysilane in this field is expected to grow steadily.
Furthermore, in the field of electronics industry, tetraethoxysilane is a key raw material for the preparation of semiconductor materials, optical fibers, etc. The rapid development of the electronics industry, the demand for semiconductor materials and optical fibers is exploding, which undoubtedly brings unprecedented opportunities for tetraethoxysilane.
However, the tetraethoxysilane market also faces some challenges. The production process may involve complex processes and high costs, which may pose certain obstacles to its large-scale promotion and application. However, with the progress of science and technology, the production process is gradually optimized, and the cost is expected to gradually decrease.
To sum up, although facing some challenges, with its wide application and important role in many fields such as construction, coatings, electronics, etc., the market prospect of tetraethoxysilane is still bright, and the future development potential is huge. It is expected to achieve more significant market achievements in the process of vigorous development of various related industries.
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