Ethyl acrylate, with the CAS number 140 - 88 - 5, is a crucial chemical compound widely used in various industries. As a reliable supplier of Ethyl Acrylate 140 - 88 - 5, I am here to share in - depth information about its physical properties, which will help you understand this product better and make more informed decisions in your procurement process.
Basic Physical Information
Ethyl acrylate is a clear, colorless liquid with a characteristic sharp, fruity odor. It has a molecular formula of (C_{5}H_{8}O_{2}) and a molecular weight of approximately 100.12 g/mol. This chemical belongs to the family of acrylates, which are known for their reactivity and wide - ranging applications.
Boiling Point and Melting Point
The boiling point of ethyl acrylate is around 99 - 100 °C at 760 mmHg. This relatively low boiling point indicates that it can be easily vaporized under normal atmospheric conditions. The melting point is approximately - 72 °C. The wide difference between the melting and boiling points allows it to exist as a liquid over a broad temperature range, which is beneficial for many industrial processes. For example, in the production of polymers, the liquid state of ethyl acrylate at normal processing temperatures enables it to mix well with other monomers and additives.
Density
The density of ethyl acrylate is about 0.923 g/mL at 25 °C. This density value is important for several reasons. In storage and transportation, it helps in calculating the volume - to - mass ratio, which is crucial for proper container sizing and handling. When used in chemical reactions, the density can also affect the mixing ratios and reaction kinetics. For instance, in emulsion polymerization, the density of ethyl acrylate influences how it disperses in the aqueous phase and interacts with the emulsifying agents.
Solubility
Ethyl acrylate is slightly soluble in water. At 20 °C, its solubility in water is approximately 1.5 g/100 mL. However, it is highly soluble in many organic solvents such as ethanol, ether, and acetone. This solubility behavior is significant in different applications. In the paint and coating industry, its solubility in organic solvents allows it to be formulated into various types of paints. The ability to dissolve in organic solvents also facilitates its use in the production of adhesives, where it can be combined with other resinous materials to achieve the desired bonding properties.
Vapor Pressure
The vapor pressure of ethyl acrylate is 41 mmHg at 25 °C. A relatively high vapor pressure means that it can readily form vapors at room temperature. This property is a double - edged sword. On one hand, in some industrial processes such as spray - coating operations, the high vapor pressure allows for easy atomization and deposition of the acrylate on the substrate. On the other hand, it also poses a risk of inhalation exposure, so proper ventilation and safety measures are necessary during handling.
Refractive Index
The refractive index of ethyl acrylate is about 1.4067 at 20 °C. The refractive index is a measure of how light is bent when passing through a substance. In the optical industry, this property can be important when ethyl acrylate is used in the production of optical polymers. It can affect the transparency and light - transmitting properties of the final products. In addition, the refractive index can also be used as a quality control parameter during the production and purification of ethyl acrylate.
Flash Point
The flash point of ethyl acrylate is 15 °C (closed - cup). A low flash point indicates that it is a flammable liquid. This means that it can ignite easily when exposed to an open flame, spark, or other sources of ignition. Therefore, strict safety regulations must be followed during storage, transportation, and handling. Specialized storage facilities with fire - prevention measures are required, and appropriate personal protective equipment should be worn by workers to minimize the risk of fire and explosion.
Comparison with Other Acrylates
When comparing ethyl acrylate with other common acrylates such as 2 - ethyl Hexyl Acrylate 103 - 11 - 7, Methyl Acrylate 96 - 33 - 3, and Butyl Acrylate 141 - 32 - 2, there are some notable differences in physical properties.
Methyl acrylate has a lower boiling point (80 - 81 °C) compared to ethyl acrylate, which makes it more volatile. It also has a different solubility profile and reactivity. Butyl acrylate, on the other hand, has a higher boiling point (145 - 146 °C) and a lower vapor pressure. This makes it less volatile and more suitable for applications where a more stable, less - evaporative monomer is required. 2 - ethyl Hexyl Acrylate has a relatively high molecular weight and different solubility and density characteristics, which are suitable for specific polymer applications such as in the production of pressure - sensitive adhesives.
Importance in Industrial Applications
The physical properties of ethyl acrylate play a vital role in its wide - range of industrial applications. In the polymer industry, it is a key monomer for the production of poly(ethyl acrylate) and copolymers. The low boiling point and good solubility in organic solvents allow for easy polymerization processes. The resulting polymers have excellent flexibility, adhesion, and weather resistance, making them suitable for use in coatings, adhesives, and sealants.
In the textile industry, ethyl acrylate - based polymers can be used as finishing agents to improve the fabric's water - repellency, softness, and anti - wrinkling properties. The liquid state of ethyl acrylate at normal processing temperatures enables it to be easily applied to the fabric surface.
Conclusion
As a supplier of Ethyl Acrylate 140 - 88 - 5, I understand the importance of these physical properties in various industrial applications. Whether you are in the polymer, paint, textile, or other industries, a clear understanding of the physical properties of ethyl acrylate can help you select the right product for your specific needs.
If you are interested in purchasing Ethyl Acrylate 140 - 88 - 5, we are here to offer you high - quality products and professional technical support. We can provide customized solutions based on your requirements. Please feel free to contact us for further discussions and procurement negotiations.
References
- "Handbook of Chemistry and Physics", CRC Press.
- "Encyclopedia of Chemical Technology", John Wiley & Sons.
- Manufacturer's technical data sheets for Ethyl Acrylate 140 - 88 - 5.