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Isooctane

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Identification
Molecular formula
C8H18
CAS number
540-84-1
IUPAC name
2,3,3-trimethylpentane
State
State

At room temperature, isooctane is in a liquid state and is highly flammable.

Melting point (Celsius)
-107.40
Melting point (Kelvin)
165.75
Boiling point (Celsius)
99.30
Boiling point (Kelvin)
372.45
General information
Molecular weight
114.22g/mol
Molar mass
114.2240g/mol
Density
0.6920g/cm3
Appearence

Isooctane appears as a clear, volatile liquid with a characteristic gasoline-like odor. It is known for its role in determining the octane rating of gasoline.

Comment on solubility

Solubility of 2,3,3-Trimethylpentane

2,3,3-Trimethylpentane, a branched alkane, exhibits some interesting solubility characteristics. As a hydrocarbon, it is predominantly nonpolar, affecting its behavior in various solvents. Here are some key points regarding its solubility:

  • Nonpolar Solvents: 2,3,3-trimethylpentane is highly soluble in nonpolar solvents, such as hexane or benzene, due to similar intermolecular forces.
  • Polar Solvents: Conversely, its solubility in polar solvents like water is extremely low, often described as "insoluble." This can be attributed to the significant difference in polarity.
  • Temperature Dependency: The solubility of this compound can also change with temperature—higher temperatures may increase solubility in nonpolar solvents, while maintaining its insolubility in polar environments.
  • Applications: Understanding its solubility is crucial in industries such as petrochemicals and organic synthesis, where 2,3,3-trimethylpentane's behavior in mixtures can influence reactions and product formation.

Ultimately, the solubility behavior of 2,3,3-trimethylpentane highlights the fundamental concept of “like dissolves like,” making it an interesting subject for those studying organic chemistry.

Interesting facts

Interesting Facts about 2,3,3-Trimethylpentane

2,3,3-trimethylpentane is an intriguing organic compound that belongs to the class of alkanes. This branched-chain hydrocarbon is part of the family called isoalkanes, which are known for their unique structural features and properties. Here are some captivating aspects of this compound:

  • Structural Complexity: 2,3,3-trimethylpentane consists of a five-carbon chain (pentane) with three additional methyl groups attached to the second and third carbon atoms. This intricate branching results in a unique molecular shape that influences its physical and chemical properties.
  • Fuel Additive: This compound is often used in gasoline formulations as a fuel additive. Its branched structure contributes to higher octane ratings, which helps improve engine performance and reduce knocking.
  • Isomerism: As a member of the pentane family, 2,3,3-trimethylpentane showcases the phenomenon of isomerism. With several structural isomers available, chemists can study the effects of branching on boiling points and reactivity.
  • Environmental Impact: Understanding the behavior and degradation of hydrocarbons like 2,3,3-trimethylpentane is crucial for environmental science. The study of its emissions and reactivity is important for assessing air quality and formulating strategies to minimize pollution.
  • Research Applications: 2,3,3-trimethylpentane serves as a model compound in various chemical reactions and studies, helping researchers understand mechanisms in organic chemistry and the effects of branching on reactivity.

Overall, the study of 2,3,3-trimethylpentane provides valuable insights into branched alkanes, their applications, and their environmental significance. As one delves deeper into organic chemistry, this compound serves as an exciting example of the diversity found within hydrocarbon structures.

Synonyms
2,3,3-TRIMETHYLPENTANE
560-21-4
Pentane, 2,3,3-trimethyl-
UNII-J62AAG7FN0
EINECS 209-207-2
J62AAG7FN0
NSC 77447
BRN 1696865
NSC-77447
2,3,3-trimethyl-pentane
DTXSID2060333
CHEBI:143849
4-01-00-00445 (Beilstein Handbook Reference)
C2H5C(CH3)2CH(CH3)2
Pentane, 2,3,3trimethyl
DTXCID7042015
209-207-2
okvwybalhqfvfp-uhfffaoysa-n
un1262
NSC77447
Pentane,3,3-trimethyl-
AKOS006272081
NS00022382
EN300-7587535
Q2813772
Z1198148974