What is methyl acetate? What is its use? What are the physical and chemical characteristics of this product? How is its production process? In this article, we intend to introduce and provide important information about methyl acetate, so stay with us until the end of this article.
Introduction to Methyl Acetate
Methyl acetate (Methyl acetate) with the formula C3H6O2, also known as methyl ethanoate and methyl ester of acetic acid, is a compound of the carboxylate ester family. It is a liquid, neutral, colorless and transparent with a fruity odor and is naturally found in fruits such as apples, grapes and bananas. Methyl acetate is very volatile and highly flammable.
Formula of Methyl Acetate:
C3H6O2 / CH3COOCH3
| Molecular structure of methyl acetate | Methyl acetate structural formula |
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Physical and chemical properties
Methyl acetate is a clear, colorless liquid that has an odor similar to most glues and varnishes. This liquid is highly volatile due to its low boiling point (57°C) and must be kept at a low temperature. On the other hand, given that the ignition temperature of this compound is around minus ten degrees Celsius, it is considered a flammable material and extreme caution must be observed when working with it.
| Chemical formula | C3H6O2 / CH3COOCH3 |
| Appearance | Clear, colorless liquid |
| Molecular mass | 74.079 g·mol−1 |
| Boiling point | 57.1 °C |
| Flash point | -10 °C |
| Melting point | -98.0 °C |
Applications of methyl acetate:
Methyl acetate has a very wide range of applications in various industries. One of its most important and obvious applications is its use as a raw material in the production of acetic anhydride, which is an important material in many industries.
It is used as a volatile solvent in the production of fast-drying paints and coatings, coatings, surface waxes and wooden items, as a cleaner for metal surfaces before painting cars, ships, boats and also to reduce the viscosity in varnishes.
In the adhesive industry, it is used in the production of cellulose adhesives, polyurethane adhesives and celluloid adhesives as a thinner, in varnish removers as a cleaner and, due to its hydrophobic properties and solubility of fats and oils, as a solvent in detergents. In addition, many important intermediate raw materials and pharmaceutical products such as methyl cinnamate, methyl cyanoacetate, phenylacetone, diphacinone, chlorophacinone, etc. are also synthesized and produced using methyl acetate.
It should be noted that methyl acetate has a high ability to dissolve cellulose compounds such as nitrocellulose, cellulose acetate, cellulose ethers or celluloids and is one of the most efficient materials in dissolving polyvinyl acetate.
This compound also plays an important role in the formulation of industrial oils and lubricants. On the other hand, in high purity and pharmaceutical grades in the food industry, it is known as a sweetener, especially for liquids. It is also used as an electrolyte in the manufacture of batteries. Meanwhile, methyl acetate spray is used as a strong cleaner in the electronics industry. Its use is also widespread in the cosmetic and health industries. Perhaps the most important of these is its use as an auxiliary solvent in perfumes, which causes greater diffusion and higher penetration of perfumes.
Production of methyl acetate:
There are two methods of producing methyl acetate:
The first method is by using the carbonylation of methanol to produce acetic acid, and methyl acetate is produced as a by-product.
CH₃OH + CO → CH₃COOH + CH₃COOCH₃
In the second method, which is more common, methyl acetate is produced by esterification (an alcohol and an acid are converted into an ester by a carboxylic acid) of acetic acid with methanol in the presence of a strong acid as a catalyst (usually sulfuric acid) and the application of heat.
CH₃OH + CH₃COOH → CH₃COOCH₃ + H₃O
It should be noted that in this method, sulfuric acid is used as a catalyst for the production of methyl acetate.
What is the difference between 99% and 85% methyl acetate?
The difference between 99% methyl acetate and 85% methyl acetate is in the purity of the substance. As the percentage increases, its purity increases, and methyl acetate has greater solubility and volatility.
Therefore, its applications in the industry also vary. For example, 99% methyl acetate can replace acetone in the resin industry due to its higher purity. But methyl acetate is used 85% more in the manufacture of thinner. Therefore, special attention should be paid to the use of this substance in product formulas because improper use will have its own consequences. For example, in the adhesive manufacturing industry, if this chemical compound is used with a low degree of purity, the materials will be damaged and two-phase due to high acid.
Safety tips regarding methyl acetate:
Methyl acetate is generally known as a toxic substance and contact with large amounts of this substance, especially its inhalation, can lead to headaches, lethargy, and indigestion. In addition, inhalation of large amounts can lead to new lung damage. Eye contact with this substance can lead to inflammation and even permanent eye damage.
Arman Trading is a leader in supplying this product with the highest quality and from the best manufacturers.
This product can be supplied domestically and also for export.
Packaging is in bulk (tanker), 1000 liter tank and barrel.
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