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Cyclopentane

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Identification
Molecular formula
C5H10
CAS number
287-92-3
IUPAC name
cyclopentane
State
State
Cyclopentane is a liquid at room temperature. Its low boiling point and volatility make it evaporate quickly when exposed to air.
Melting point (Celsius)
-93.90
Melting point (Kelvin)
179.25
Boiling point (Celsius)
49.30
Boiling point (Kelvin)
322.45
General information
Molecular weight
70.13g/mol
Molar mass
70.1330g/mol
Density
0.7510g/cm3
Appearence

Cyclopentane is a colorless liquid with a mild, sweet odor. It is a saturated cyclic hydrocarbon with five carbon atoms arranged in a pentagon shape.

Comment on solubility

Solubility of Cyclopentane

Cyclopentane (C5H10) is a cyclic alkane that exhibits particular solubility characteristics important for various applications. Its solubility properties can be summarized as follows:

  • Insoluble in Water: Cyclopentane is largely insoluble in water due to its non-polar structure. The molecular interactions between water molecules and cyclopentane are weak, preventing effective dissolution.
  • Slight Solubility in Organic Solvents: Cyclopentane can dissolve in non-polar organic solvents, enabling it to mix with compounds such as hexane, benzene, and other hydrocarbons.
  • Temperature Dependency: The solubility of cyclopentane may slightly improve with increasing temperature, as kinetic energy promotes interaction with solvents; however, it remains largely non-polar.

The characteristic non-polarity of cyclopentane dictates its behavior in solution, making it an interesting compound to study in the context of solubility. When considering its use, it’s crucial to keep in mind that adequate solvent selection is vital for effective applications.

Interesting facts

Interesting Facts About Cyclopentane

Cyclopentane is an intriguing organic compound that belongs to the family of alicyclic hydrocarbons. Here are some fascinating aspects of this compound that highlight its significance in both industrial and academic settings:

Structure and Properties

  • Unique Ring Structure: Cyclopentane consists of a five-carbon ring, which contributes to its unique chemical properties and physical behavior.
  • Conformational Variability: The molecule exists in several conformations; its most stable form is a "envelope" conformation that minimizes angle strain compared to a theoretical planar structure.
  • Nonpolar Character: Being a hydrocarbon, cyclopentane displays nonpolar characteristics, which affects its interactions with other substances.

Applications of Cyclopentane

Cyclopentane is not just a chemical curiosity—it has practical applications that showcase its versatility:

  • Solvent Use: It serves as a solvent in various chemical reactions and synthesis processes.
  • Blowing Agent: In the manufacturing of foams, cyclopentane is used as a blowing agent, contributing to the production of lightweight, insulating materials.
  • Fuel Component: Due to its boiling range, cyclopentane is explored as a potential component in the formulation of fuel blends.

Historical Perspective

The history of cyclopentane is as captivating as its chemistry:

  • Discovery: Cyclopentane was first identified in 1893 by German chemist Henry H. S. G. Scherer, paving the way for further research into cyclic hydrocarbons.
  • Research Significance: Its simple structure has made it a model compound for studies in conformational analysis and reactivity patterns in organic chemistry.

In summary, cyclopentane is a simple yet fascinating compound that exemplifies the diversity of organic chemistry. Its applications and historical significance make it a subject of interest for chemists and students alike, highlighting the endless possibilities inherent in chemical research.

Synonyms
CYCLOPENTANE
287-92-3
Pentamethylene
ciclopentano
cyclopentan
Zyklopentan
HSDB 62
Cyclopentanes
UNII-T86PB90RNU
EINECS 206-016-6
T86PB90RNU
NSC 60213
UN1146
DTXSID6024886
CHEBI:23492
CYCLOPENTANE [MI]
MFCD00001356
NSC-60213
CYCLOPENTANE [HSDB]
DTXCID804886
EC 206-016-6
UN 1146
trans-cyclopentane
EINECS 270-696-0
ZEONSOLV HP
Cyclopentane (ACGIH)
Cyclopentane, HPLC Grade
WLN: L5TJ
CHEMBL1370850
CHEBI:23493
Cyclopentane (ZEONSOLVaa? HP)
Cyclopentane, analytical standard
DTXSID20192138
Cyclopentane, reagent grade, 98%
NSC60213
Tox21_200202
AKOS015903084
NCGC00091776-01
NCGC00091776-02
NCGC00257756-01
CAS-287-92-3
PS-11988
DB-360220
Cyclopentane [UN1146] [Flammable liquid]
NS00004654
Q80260
Cyclopentane, for HPLC, >=75% cyclopentane basis
ASTM Method D5191 Vapor Pressure - 68.3kPa (9.91 psi)
Cyclopentane, >=75% cyclopentane basis, spectrophotometric grade
206-016-6