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3-Methylheptane

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Identification
Molecular formula
C8H18
CAS number
589-81-1
IUPAC name
3-methylheptane
State
State

3-Methylheptane is a liquid at room temperature.

Melting point (Celsius)
-119.30
Melting point (Kelvin)
153.85
Boiling point (Celsius)
116.70
Boiling point (Kelvin)
389.85
General information
Molecular weight
114.23g/mol
Molar mass
114.2290g/mol
Density
0.7200g/cm3
Appearence

3-Methylheptane is a colorless liquid hydrocarbon with a faint gasoline-like odor. As a branched alkane, it is less dense than water and is not soluble in water. It has a relatively low viscosity and will evaporate if left in open air, leaving no residue.

Comment on solubility

Solubility of 3-methylheptane

3-methylheptane, with the chemical formula C8H18, is an organic hydrocarbon classified as an alkane. When considering its solubility, several key points come into play:

  • Non-polar Nature: 3-methylheptane is a non-polar compound. This characteristic significantly affects its interaction with solvents.
  • Solubility in Organic Solvents: It is predominantly soluble in non-polar organic solvents such as hexane, benzene, and toluene. This makes it ideal for applications in organic chemistry.
  • Poor Solubility in Water: Given its non-polarity, 3-methylheptane exhibits very low solubility in water. In fact, it is often cited that "like dissolves like," meaning its non-polar structure renders it incompatible with polar solvents like water.
  • Environmental Considerations: Due to its hydrophobic nature, spills of 3-methylheptane in aquatic environments may resist mixing with water, raising concerns for ecological impacts.

In conclusion, the solubility of 3-methylheptane is a reflection of its chemical composition and structure. As a non-polar hydrocarbon, it thrives in non-polar environments while remaining largely insoluble in polar solvents like water.

Interesting facts

Interesting Facts About 3-Methylheptane

3-Methylheptane is an intriguing hydrocarbon that belongs to the family of saturated alkanes. It is a branched chain alkane and is known for its notable presence in the field of organic chemistry. Here are some fascinating aspects of this compound:

  • Structural Identification: The name "3-methylheptane" indicates that there is a methyl group (–CH3) attached to the third carbon of a heptane chain, which has seven carbons in total. This structural variation is crucial for understanding its chemical properties.
  • Isomerism: 3-Methylheptane is one of several isomers of octane, which makes it a subject of interest for studies related to isomerism and structural distinctions in organic compounds.
  • Fuel Source: Due to its considerable branching, 3-methylheptane has become an important compound in fuel research. Its combustion properties are of significant interest in improving the performance of fuels in engines.
  • Octane Rating: Compounds like 3-methylheptane are often evaluated for their octane ratings, which indicate their effectiveness as fuel. A higher octane rating usually correlates with better engine performance and reduced knocking.
  • Research Applications: Its unique structure makes 3-methylheptane a valuable compound in the study of reaction mechanisms and hydrocarbon behavior, contributing to advancements in both synthetic chemistry and petrochemical processes.

In the words of Theodore Gray, a renowned chemistry author and educator, “Chemistry is the science of change.” 3-Methylheptane serves as a perfect illustration of this concept, showing how a simple rearrangement of atoms can lead to compounds with distinct physical and chemical properties.

This compound not only enhances our understanding of chemistry but also plays a role in real-world applications, making it a vital topic for students and scholars alike.

Synonyms
3-METHYLHEPTANE
Heptane, 3-methyl-
2-Ethylhexane
3-methyl-heptane
Z4R1WI6C0R
3-Methyl-(S)-Heptane
EINECS 209-660-6
NSC 24845
NSC-24845
UNII-Z4R1WI6C0R
DTXSID90862250
Heptane, 3methyl
DTXCID70811044
209-660-6
laiufbwherijih-uhfffaoysa-n
un1262
589-81-1
3-METHYLHEPTANE-D18
2-Butylbutane
3-methyl heptane
NSC24845
MFCD00027244
3-Methylheptane, 98%
Heptane, 3-methyl-, (S)-
CHEBI:89985
LMFA11000606
AKOS015841882
LS-13530
DB-053299
M0334
NS00042590
D91318
Q2816006
Heptane, 3-methyl-; 3-Methylheptane; (+/-)-3-Methylheptane; 2-Ethylhexane; NSC 24845