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Pentane

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Identification
Molecular formula
C5H12
CAS number
109-66-0
IUPAC name
pentane
State
State

Pentane is a liquid at room temperature. It is highly volatile and evaporates readily into a gas under normal atmospheric conditions.

Melting point (Celsius)
-129.80
Melting point (Kelvin)
143.50
Boiling point (Celsius)
36.10
Boiling point (Kelvin)
309.30
General information
Molecular weight
72.15g/mol
Molar mass
72.1510g/mol
Density
0.6260g/cm3
Appearence

Pentane is a colorless liquid with a very low viscosity. It has a faint, gasoline-like odor, partly because it is a component of gasoline. Its low boiling point and volatility are noticeable as it evaporates quickly at room temperature.

Comment on solubility

Solubility of Pentane

Pentane, with the chemical formula C5H12, is a hydrocarbon belonging to the alkane family. When discussing its solubility, it is important to note several key features:

  • Non-polar nature: Due to its non-polar characteristics, pentane is insoluble in water. Water is a polar solvent, and the principle of "like dissolves like" applies here.
  • Solubility in organic solvents: Pentane is, however, quite soluble in non-polar organic solvents such as:
    • Hexane
    • Chloroform
    • Ether
  • Volatility: Pentane has a low boiling point (about 36 °C), which makes it highly volatile; this characteristic also plays a role in its interaction with other substances.
  • Temperature effect: The solubility can increase with temperature, particularly when mixing with other hydrocarbons, which may lead to better solvation.

In summary, while pentane is insoluble in water, it can dissolve well in non-polar organic solvents, emphasizing the importance of solvent compatibility when working with various chemical compounds. Always remember the solvent nature when discussing solubility—this can be crucial for many applications in organic chemistry.

Interesting facts

Pentane: The Versatile Hydrocarbon

Pentane, an alkane with five carbon atoms, holds a prominent place in both organic chemistry and various industrial applications. Here are some fascinating points about this unique compound:

  • Isomerism: Pentane exhibits three structural isomers: n-pentane, isopentane (or 2-methylbutane), and neopentane (or 2,2-dimethylpropane). This variety allows for a diverse range of chemical behavior and properties.
  • Fuel Source: As a constituent of gasoline and a fuel in its own right, pentane is vital for energy production. Its clean-burning characteristics enhance its suitability for various combustion processes.
  • Laboratory Uses: Pentane is often utilized as a non-polar solvent in laboratories, making it an excellent choice for extracting compounds and conducting reactions involving non-polar substances.
  • Low Boiling Point: Pentane's low boiling point (around 36 °C) enables it to be used as a cooling agent in cryogenic applications and in laboratories requiring temperature control during experiments.
  • Environmental Impact: Although it is not as harmful as some other hydrocarbons, pentane does contribute to air pollution due to its volatile organic compound (VOC) emissions, necessitating careful management in industrial contexts.

In a world increasingly focused on sustainable chemistry and environmental stewardship, the role of pentane and its derivatives continues to be a point of interest. As noted by a prominent chemist, "Understanding the complexities of simple hydrocarbons like pentane can lead to innovations in both energy efficiency and materials science."

Further research into pentane and its properties not only enhances our understanding of hydrocarbons but also paves the way for new applications and environmental considerations in modern chemistry.

Synonyms
PENTANE
n-Pentane
109-66-0
Pentan
Skellysolve A
Pentanen
Pentani
Amyl hydride
Pentanes
Tetrafume
Tetrakil
Tetraspot
Caswell No. 642AA
NSC 72415
HSDB 109
EINECS 203-692-4
EPA Pesticide Chemical Code 098001
UNII-4FEX897A91
DTXSID2025846
CHEBI:37830
AI3-28785
4FEX897A91
ACTH, formylmethionyl-
MFCD00009498
NSC-72415
DTXCID705846
EC 203-692-4
NCGC00091116-01
Normal Pentane
PENTANE (MART.)
PENTANE [MART.]
R-601
Pentan [Polish]
Pentanen [Dutch]
Pentani [Italian]
107949-95-1
normal-Pentane
n-Pentan
CAS-109-66-0
Pentane, pentene fraction
UN1265
Butane, methyl- (9CI)
syn-pentane
1-ethylpropane
Pentane; E 0121; NSC 72415; Norpar 5S; Skellysolve A; n-Pentane
trimethylenemethane
Pentane, p.a.
EINECS 270-684-5
EINECS 270-695-5
EINECS 271-960-8
Pentane [WHO-DD]
Pentane, HPLC Grade
Pentane Fraction, purum
PENTANE [HSDB]
n-Pentane, HPLC Grade
PENTANE [MI]
PENTANE [USP-RS]
EC 270-695-5
Pentane, p.a., 99%
Pentane, purification grade
Pentane, analytical standard
Pentane, AR, >=99%
Pentane, LR, >=99%
WLN: 5H
102056-77-9
UN 1265 (Salt/Mix)
CHEMBL16102
Pentane, anhydrous, >=99%
n-C5H12
Pentane, >=99% (GC)
Pentane, p.a., 99.5%
Pentane, reagent grade, 98%
CH3-(CH2)3-CH3
DTXSID40179628
DTXSID60181228
Pentane, >=99%, HPLC grade
n-Pentane, Spectrophotometric Grade
NSC72415
Pentane, for HPLC, >=99.0%
EINECS 270-654-1
Tox21_111085
Tox21_200248
LMFA11000583
STL301896
Pentane 1000 microg/mL in Methanol
Pentane, purum, >=95.0% (GC)
AKOS009158849
Pentane, UV HPLC spectroscopic, 99%
n-Pentane 1000 microg/mL in Methanol
Pentane, SAJ first grade, >=96.0%
USEPA/OPP Pesticide Code: 098001
NCGC00091116-02
NCGC00257802-01
Pentane, SAJ special grade, >=99.0%
Pentanes [UN1265] [Flammable liquid]
Pentane, spectrophotometric grade, >=99%
NS00008602
P0048
P2621
Pentane, puriss. p.a., >=99.0% (GC)
D91890
EC 270-654-1
Pentane, Laboratory Reagent, >=95.0% (GC)
A802071
Q150429
InChI=1/C5H12/c1-3-5-4-2/h3-5H2,1-2H
EB93985D-C6D5-4EC7-A089-73B41F8B4583
Pentane, United States Pharmacopeia (USP) Reference Standard
Pentane, capillary GC grade, >=98% n-pentane basis, 99.9+% C5 isomers.
Pentane, puriss., absolute, over molecular sieve (H2O <=0.005%), >=99.0% (GC)
203-692-4
AKS