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Hemimellitene

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Identification
Molecular formula
C9H12
CAS number
526-73-8
IUPAC name
1,2,3-trimethylbenzene
State
State

At room temperature, hemimellitene is a liquid. It is generally noted for its aromatic properties which are characteristic of its molecular structure.

Melting point (Celsius)
-25.00
Melting point (Kelvin)
248.15
Boiling point (Celsius)
175.00
Boiling point (Kelvin)
448.15
General information
Molecular weight
120.20g/mol
Molar mass
120.1950g/mol
Density
0.8766g/cm3
Appearence

Hemimellitene is a colorless aromatic hydrocarbon that is liquid at room temperature. It possesses a distinct aromatic odor typical of many benzene derivatives.

Comment on solubility

Solubility of 1,2,3-Trimethylbenzene

1,2,3-trimethylbenzene, also known as pseudocumene, exhibits interesting solubility characteristics worthy of exploration. Here’s a breakdown of its solubility profile:

  • Solvent Compatibility: This compound is a non-polar aromatic hydrocarbon, making it insoluble in water but soluble in organic solvents.
  • Solubility in Organic Solvents: It dissolves well in various organic solvents, such as alcohols, ethers, and aromatic hydrocarbons.
  • Temperature Influence: Like many organic compounds, its solubility may increase with temperature, affecting its behavior in different applications.

As a general rule, non-polar substances like 1,2,3-trimethylbenzene tend to dissolve in non-polar solvents due to the principle of "like dissolves like." Consequently, while it may pose challenges in aqueous environments, its versatility with organic solvents opens up numerous possibilities for industrial and laboratory use. As noted, "the solvent choice is paramount in solution chemistry!"


Interesting facts

Interesting Facts about 1,2,3-Trimethylbenzene

1,2,3-Trimethylbenzene, also known as pseudocumene, is a fascinating aromatic hydrocarbon with several notable characteristics and applications. Here are some intriguing insights:

  • Structure and Isomerism: This compound is a form of trimethylbenzene, featuring three methyl groups attached to a benzene ring. The unique arrangement of these groups distinguishes it from its isomers, 1,3,5-trimethylbenzene (mesitylene) and 1,2,4-trimethylbenzene. The positioning of the methyl groups plays a crucial role in influencing the compound's chemical properties.
  • Natural Occurrence: 1,2,3-Trimethylbenzene can be found in various natural sources, including coal tar and petroleum. This existence within fossil fuels highlights its significance in organic chemistry and its potential environmental impacts.
  • Applications in Industry: The compound serves as a precursor in the synthesis of numerous chemical derivatives and is utilized in various industrial applications. It is notably employed in the production of resins, including epoxy resins and coatings, showing its versatility in manufacturing.
  • Environmental Considerations: As an aromatic hydrocarbon, the compound is subject to scrutiny for its potential environmental effects. Its presence in air pollution contributes to the volatile organic compounds (VOCs) that are of concern in urban areas.
  • Health and Safety: While it is essential in many industrial processes, exposure to 1,2,3-trimethylbenzene should be approached with caution. Safety data indicates that inhalation or prolonged exposure can lead to various health implications, emphasizing the need for appropriate handling measures in the workplace.

In summary, 1,2,3-trimethylbenzene is not only an intriguing compound from a structural standpoint but also holds significant implications in industrial chemistry and environmental science. Its multifaceted nature makes it a vital subject of study for both chemists and environmentalists alike.

Synonyms
Trimethylbenzene
25551-13-7
Trimethyl benzene
TRIMETHYLBENZENES
HSDB 6830
EINECS 247-099-9
UNII-A3F3279Q14
DTXSID6049808
CHEBI:38641
1,2,3-TRIMETHYLBENZENE
526-73-8
Hemimellitene
Hemellitol
Hemimellitol
Benzene, 1,2,3-trimethyl-
ZK4R7UPH6R
1,2,3-trimethyl-benzene
DTXSID8047769
CHEBI:34037
NSC-5167
1,3-Trimethylbenzene
Hemimellitene, 90.5%
Benzene,2,3-trimethyl-
1,2,3-Trimethylbenzene 100 microg/mL in Methanol
WLN: 1R B1 C1
1,3-Trimethylbenzene, 90.5%
1,2,3-Trimethylbenzene (>90%)
NSC 5167
1,2,3-Trimethylbenzene, 90.5%
EINECS 208-394-8
UNII-ZK4R7UPH6R
BRN 1903410
Trimethylbenzene, 1,2,3-
CCRIS 8145
HSDB 7551
Benzene, 1,2,3-trimethyl-; 1,2,3-Trimethylbenzene; Hemimellitene; Hemimellitol; NSC 5167; NSC 65599
MFCD00008520
1,2,3-TrimethyIbenzene
HEMIMELLITENE [HSDB]
4-05-00-01007 (Beilstein Handbook Reference)
BIDD:ER0517
CHEMBL1797279
DTXCID7027750
NSC5167
1,2,3-TRIMETHYL BENZENE
NSC65599
Tox21_303868
NSC-65599
AKOS009031505
1,2,3-Trimethylbenzene (>90per cent)
NCGC00357131-01
CAS-526-73-8
FT153715
DB-246429
1,2,3-Trimethylbenzene, analytical standard
NS00010824
T0468
EN300-19373
1,2,3-Trimethylbenzene, technical grade, 90%
A829196
Q4352416
F0001-1357
Z104473658
trimethylarsenic dibromide;1,2,3-Trimethylbenzene;Hemimellitene
InChI=1/C9H12/c1-7-5-4-6-8(2)9(7)3/h4-6H,1-3H