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2-Methyloctadecane

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Identification
Molecular formula
C19H40
CAS number
2867-76-9
IUPAC name
2-methyloctadecane
State
State

At room temperature, 2-Methyloctadecane is typically present as a liquid, due to its relatively low melting point and the presence of branching that lowers the melting point compared to its linear analogs.

Melting point (Celsius)
12.50
Melting point (Kelvin)
285.70
Boiling point (Celsius)
311.10
Boiling point (Kelvin)
584.30
General information
Molecular weight
254.49g/mol
Molar mass
254.4940g/mol
Density
0.7865g/cm3
Appearence

2-Methyloctadecane is a colorless liquid. It is an alkane hydrocarbon derived from octadecane with a methyl group substitution at the second carbon atom, giving it a branched structure. Like most alkanes, it is hydrophobic and does not mix well with water.

Comment on solubility

Solubility of 2-methyloctadecane

2-methyloctadecane, with its long hydrocarbon chain, exhibits interesting solubility properties. Being a member of the aliphatic hydrocarbon family, this compound is characterized by:

  • Low Polarity: The extensive carbon chain contributes to its nonpolar nature, which significantly affects solubility.
  • Hydrophobic Behavior: Due to its hydrophobic characteristics, 2-methyloctadecane is poorly soluble in polar solvents like water.
  • Solubility in Nonpolar Solvents: This compound demonstrates good solubility in nonpolar solvents such as hexane and benzene, making it ideal for various applications in organic chemistry.

As a rule of thumb, "like dissolves like"—hence, the solubility of 2-methyloctadecane aligns with this principle, highlighting its nonpolar affinity. For practical applications, understanding its solubility can influence how it is utilized in formulation chemistry, particularly in detergent and oil-based products.

Interesting facts

Interesting Facts About 2-Methyloctadecane

2-Methyloctadecane is an intriguing hydrocarbon that belongs to the class of alkanes, specifically the family of long-chain hydrocarbons. It features a branched structure derived from octadecane, which consists of 18 carbon atoms. This compound is not only significant in the field of organic chemistry but also plays a critical role in multiple applications:

  • Biochemical Importance: Long-chain alkanes like 2-methyloctadecane are pertinent in the study of lipid biochemistry, as they exhibit properties similar to those of fatty acids.
  • Applications in Fuel: Due to its structural composition, this compound can contribute to the formulation of various fuels and lubricants, optimizing energy efficiency.
  • Branching Effects: The presence of the methyl group (−CH₃) at the second carbon impacts its physical and chemical properties, affecting aspects such as viscosity and combustion characteristics.
  • Use in Organic Synthesis: 2-Methyloctadecane acts as a building block in organic synthesis, allowing chemists to create more complex molecules.

Interestingly, compounds like 2-methyloctadecane challenge the classical views of chemical reactivity and stability. As noted by chemist Richard Ernst, “The study of hydrocarbons not only inspires innovation in material science but also enhances our understanding of natural processes.”

Furthermore, research in the domain of environmental chemistry has indicated that hydrocarbons, such as those with long carbon chains, can be significant in understanding the dynamics of pollutant distribution and degradation in an ecosystem. Thus, 2-methyloctadecane embodies a fascinating blend of practicality and theoretical significance, making it a valuable subject of study for chemists and environmental scientists alike.

Synonyms
2-METHYLOCTADECANE
Octadecane, 2-methyl-
AI3-35195
DTXSID50166024
Octadecane, 2methyl
DTXCID8088515
680-583-1
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1560-88-9
LMFA11000350
DB-043303
NS00010694