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2-Methylhexane

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Identification
Molecular formula
C7H16
CAS number
591-76-4
IUPAC name
2-methylhexane
State
State

2-Methylhexane is a liquid at room temperature. This characteristic is typical for alkanes of similar molar mass.

Melting point (Celsius)
-119.90
Melting point (Kelvin)
153.25
Boiling point (Celsius)
89.80
Boiling point (Kelvin)
362.95
General information
Molecular weight
100.20g/mol
Molar mass
100.2010g/mol
Density
0.6641g/cm3
Appearence

2-Methylhexane is a colorless liquid with an appearance similar to other hydrocarbons in its class. It is not soluble in water, reflective of its hydrocarbon nature.

Comment on solubility

Solubility of 2-methylhexane

2-methylhexane, with the chemical formula C7H16, is a branched-chain alkane. In terms of solubility, it is important to note the following:

  • Nonpolar Nature: Due to its nonpolar characteristics, 2-methylhexane is insoluble in water. This is a common trait for most alkanes, which do not interact favorably with polar solvents.
  • Solvent Compatibility: It shows good solubility in organic solvents such as hexane, benzene, and other nonpolar solvents. This makes it useful in various chemical applications where nonpolar solvents are preferred.
  • Aqueous Solutions: When mixed with water, 2-methylhexane remains separate, forming distinct layers due to its lower density compared to water.

To summarize, 2-methylhexane is characterized by its insoluble nature in water, rendered effective only in nonpolar solvents, which illustrates a fundamental principle of solubility: "like dissolves like".

Interesting facts

Interesting Facts about 2-Methylhexane

2-Methylhexane is an intriguing alkane and isomer of heptane, belonging to the family of hydrocarbons. Here are some compelling insights:

  • Structural Diversity: 2-Methylhexane has a branched structure, which significantly differentiates it from its straight-chain counterparts. This branching influences many physical and chemical properties, such as boiling point and reactivity.
  • Industrial Relevance: As a component of gasoline, 2-methylhexane plays a crucial role in fuel performance and octane rating. Its presence helps in improving the efficiency of combustion engines.
  • Isomerization: 2-Methylhexane is one of several isomers of C₇H₁₄, which can greatly affect its application in various chemical processes. The isomeric nature of alkanes like this one is a key topic in organic chemistry.
  • Hydrocarbon Characteristics: Being a branched-chain alkane, it is generally less dense than water and has unique properties like lower viscosity than their straight-chain equivalents, making it interesting for chemical processes.
  • Analysis Techniques: Chemists often utilize methods like gas chromatography to separate and identify hydrocarbon fractions, including those containing 2-methylhexane, in complex mixtures.

As a student or enthusiast studying organic chemistry, understanding the significance of 2-methylhexane in both natural processes and industrial applications offers a glimpse into the complexities of molecular structures and their real-world implications. Always remember, in the words of the chemist Linus Pauling, "The best way to have a good idea is to have a lot of ideas." Exploring diverse compounds like 2-methylhexane certainly enriches that idea pool!

Synonyms
2-METHYLHEXANE
Hexane, 2-methyl-
ISOHEPTANE
31394-54-4
D 726
EINECS 209-730-6
UNII-YI4679P2SP
NSC 24840
YI4679P2SP
EINECS 250-610-8
NSC-24840
DTXSID5052256
EC 250-610-8
Hexane, 2methyl
DTXCID0030827
DTXSID201014575
250-610-8
gxdhcnnesplikd-uhfffaoysa-n
591-76-4
Isobepane
2-methyl-hexane
MFCD00009487
2-Methylhexane, 99%
2-Methylhexane; NSC 24840
CHEMBL1797267
DTXSID90193632
CHEBI:230545
NSC24840
AKOS015841662
LS-13367
DB-053334
M0231
NS00002780
D91294
Q183300