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Mesitylene

 

 
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Mesitylene
 
 
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In organic chemistry
Organic chemistry

Organic chemistry is a discipline within chemistry which involves the science study of the structure, properties, composition, chemical reaction, and preparation of chemical compounds that contain carbon....
, mesitylene or 1,3,5-trimethylbenzene (C9H12) is an aromatic hydrocarbon
Aromatic hydrocarbon

An aromatic hydrocarbon or arene is a hydrocarbon, of which the molecular structure incorporates one or more planar sets of six carbon atoms that are connected by delocalised electrons numbering the same as if they consisted of alternating single and double covalent bonds....
 with three methyl substituent
Substituent

In organic chemistry, a substituent is an atom or group of atoms substituted in place of a hydrogen atom on the parent chain of a hydrocarbon. The suffix -yl is used when naming organic compounds that contain a substituent....
s attached to the benzene
Benzene

Benzene, or benzol, is an organic compound chemical compound and a known carcinogen with the molecular formula Carbon6Hydrogen6....
 ring. It is prepared from distillation
Distillation

Distillation is a method of separation process mixtures based on differences in their Volatility in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction....
 of acetone
Acetone

Acetone is the organic compound with the chemical formula OC2. This colorless, mobile, flammable liquid is the simplest example of the ketones....
 with sulfuric acid
Sulfuric acid

Sulfuric acid, hydrogen2sulfuroxygen4, is a strong mineral acid. It is soluble in water at all concentrations. Sulfuric acid has many applications, and is one of the top products of the chemical industry....
 or by the trimerization of propyne in sulfuric acid
Sulfuric acid

Sulfuric acid, hydrogen2sulfuroxygen4, is a strong mineral acid. It is soluble in water at all concentrations. Sulfuric acid has many applications, and is one of the top products of the chemical industry....
, which in both cases acts as a catalyst and dehydrating
Dehydration reaction

In chemistry, a dehydration reaction is usually defined as a chemical reaction that involves the loss of water from the reacting molecule. Dehydration reactions are a subset of elimination reactions....
 agent. It is commonly used as a solvent
Solvent

A solvent is a liquid or gas that dissolves a solid, liquid, or gaseous solute, resulting in a solution.The most common solvent in everyday life is water....
 in research
Research

Research is defined as human activity based on intellectual application in the investigation of matter. The primary purpose for applied research is discovery , interpretation , and the development of methods and systems for the advancement of human knowledge on a wide variety of scientific matters of our world and the universe....
 and industry
Industry

An industry is the manufacturing of a Good or Service within a category. Although industry is a broad term for any kind of economic production, in economics and urban planning industry is a synonym for the secondary sector, which is a type of economic activity involved in the manufacturing of raw materials into goods and products....
. Mesitylene is flammable and an irritant
Irritant

Irritant may refer to:* Something that causes irritation.* Irritant , a psychedelic trance album* Irritant , a United Kingdom rock musical group...
. Mesitylene has a very low freezing point.

In the electronics industry, mesitylene has also been used as a developer
Photographic developer

In the Photographic processing, plates or papers, the photographic developer is a chemical that makes the latent image on the film or print visible....
 for photopatternable silicone
Silicone

Silicones are largely inert, man-made compounds with a wide variety of forms and uses. Typically heat-resistant, nonstick, and rubberlike, they are commonly used in cookware, medicine, sealants, adhesives, lubricants, and insulation....
s due to its solvent properties.

1,3,5-Trimethylbenzene is also a major urban volatile organic compound
Volatile organic compound

Volatile organic compounds are organic chemical compounds that have high enough vapor pressures under normal conditions to significantly vaporize and enter the atmosphere....
 (VOC) which results from combustion
Combustion

Combustion or burning is a complex sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light in the form of either a glow or flames, appearance of light flickering....
.






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In organic chemistry
Organic chemistry

Organic chemistry is a discipline within chemistry which involves the science study of the structure, properties, composition, chemical reaction, and preparation of chemical compounds that contain carbon....
, mesitylene or 1,3,5-trimethylbenzene (C9H12) is an aromatic hydrocarbon
Aromatic hydrocarbon

An aromatic hydrocarbon or arene is a hydrocarbon, of which the molecular structure incorporates one or more planar sets of six carbon atoms that are connected by delocalised electrons numbering the same as if they consisted of alternating single and double covalent bonds....
 with three methyl substituent
Substituent

In organic chemistry, a substituent is an atom or group of atoms substituted in place of a hydrogen atom on the parent chain of a hydrocarbon. The suffix -yl is used when naming organic compounds that contain a substituent....
s attached to the benzene
Benzene

Benzene, or benzol, is an organic compound chemical compound and a known carcinogen with the molecular formula Carbon6Hydrogen6....
 ring. It is prepared from distillation
Distillation

Distillation is a method of separation process mixtures based on differences in their Volatility in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction....
 of acetone
Acetone

Acetone is the organic compound with the chemical formula OC2. This colorless, mobile, flammable liquid is the simplest example of the ketones....
 with sulfuric acid
Sulfuric acid

Sulfuric acid, hydrogen2sulfuroxygen4, is a strong mineral acid. It is soluble in water at all concentrations. Sulfuric acid has many applications, and is one of the top products of the chemical industry....
 or by the trimerization of propyne in sulfuric acid
Sulfuric acid

Sulfuric acid, hydrogen2sulfuroxygen4, is a strong mineral acid. It is soluble in water at all concentrations. Sulfuric acid has many applications, and is one of the top products of the chemical industry....
, which in both cases acts as a catalyst and dehydrating
Dehydration reaction

In chemistry, a dehydration reaction is usually defined as a chemical reaction that involves the loss of water from the reacting molecule. Dehydration reactions are a subset of elimination reactions....
 agent. It is commonly used as a solvent
Solvent

A solvent is a liquid or gas that dissolves a solid, liquid, or gaseous solute, resulting in a solution.The most common solvent in everyday life is water....
 in research
Research

Research is defined as human activity based on intellectual application in the investigation of matter. The primary purpose for applied research is discovery , interpretation , and the development of methods and systems for the advancement of human knowledge on a wide variety of scientific matters of our world and the universe....
 and industry
Industry

An industry is the manufacturing of a Good or Service within a category. Although industry is a broad term for any kind of economic production, in economics and urban planning industry is a synonym for the secondary sector, which is a type of economic activity involved in the manufacturing of raw materials into goods and products....
. Mesitylene is flammable and an irritant
Irritant

Irritant may refer to:* Something that causes irritation.* Irritant , a psychedelic trance album* Irritant , a United Kingdom rock musical group...
. Mesitylene has a very low freezing point.

In the electronics industry, mesitylene has also been used as a developer
Photographic developer

In the Photographic processing, plates or papers, the photographic developer is a chemical that makes the latent image on the film or print visible....
 for photopatternable silicone
Silicone

Silicones are largely inert, man-made compounds with a wide variety of forms and uses. Typically heat-resistant, nonstick, and rubberlike, they are commonly used in cookware, medicine, sealants, adhesives, lubricants, and insulation....
s due to its solvent properties.

1,3,5-Trimethylbenzene is also a major urban volatile organic compound
Volatile organic compound

Volatile organic compounds are organic chemical compounds that have high enough vapor pressures under normal conditions to significantly vaporize and enter the atmosphere....
 (VOC) which results from combustion
Combustion

Combustion or burning is a complex sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light in the form of either a glow or flames, appearance of light flickering....
. It plays a significant role in aerosol and tropospheric ozone
Tropospheric ozone

Ozone is a constituent of the troposphere . Photochemical and chemical reactions involving it drive many of the chemical processes that occur in the atmosphere by day and by night....
 formation as well as other reactions in atmospheric chemistry
Atmospheric chemistry

Atmospheric chemistry is a branch of atmospheric science in which the chemistry of the Earth's atmosphere and that of other planets is studied....
.

The mesityl group (Mes) is a functional group
Functional group

In organic chemistry, functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules....
 found as an attachment in many organic compounds.

The three aromatic hydrogen atoms of mesitylene are in identical chemical shift environments. Therefore, they only give a single peak, with an integration of 3, near 6.8 ppm in the 1H NMR spectrum. For this reason, mesitylene is sometimes used as an internal standard
Internal standard

An internal standard in analytical chemistry is a chemical substance that is added in a constant amount to samples, the blank and calibration standards in a chemical analysis....
 in NMR samples that contain aromatic protons.

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