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Pentan-2-one

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Identification
Molecular formula
C5H10O
CAS number
107-87-9
IUPAC name
pentan-2-one
State
State

At room temperature, pentan-2-one exists as a liquid. It is part of the ketone family and is commonly used in industrial applications.

Melting point (Celsius)
-78.00
Melting point (Kelvin)
195.15
Boiling point (Celsius)
101.20
Boiling point (Kelvin)
374.35
General information
Molecular weight
86.13g/mol
Molar mass
86.1330g/mol
Density
0.8130g/cm3
Appearence

Pentan-2-one is a colorless, volatile liquid with a distinct, sweet odor. It is also known as methyl propyl ketone and has a sharp smell similar to acetone, which makes it easily identifiable.

Comment on solubility

Solubility of Pentan-2-one

Pentan-2-one, also known as 2-pentanone, is a ketone with the chemical formula C5H10O. When discussing its solubility, several key points come into play:

  • Polarity: Pentan-2-one is a polar compound due to the carbonyl group (C=O) present in its structure.
  • Solvent Interaction: It exhibits good solubility in polar solvents like water and ethanol, particularly because of its ability to form hydrogen bonds with the solvent molecules.
  • Hydrophobic Character: On the other hand, the hydrocarbon chain gives pentan-2-one some hydrophobic characteristics, which may limit its solubility at higher concentrations.

As a result, pentan-2-one is generally regarded as having moderate solubility in water. For practical applications, it is often used in various organic solvents, where it is more soluble. To summarize:

  1. Moderate water solubility
  2. Good solubility in ethanol
  3. Limited solubility in non-polar solvents

In essence, while pentan-2-one can dissolve well in certain solvents, its solubility can greatly vary depending on the nature of the solvent and the surrounding conditions.

Interesting facts

Interesting Facts about Pentan-2-one

Pentan-2-one, also known as 2-pentanone, is a fascinating organic compound that belongs to the family of ketones. Here are some compelling aspects of this intriguing compound:

  • Chemical Structure: Pentan-2-one features a five-carbon chain with a ketone functional group located at the second carbon, which contributes to its unique properties and reactivity.
  • Solvent Properties: Because of its moderate polarity, pentan-2-one is often used as a solvent in various chemical reactions and applications, making it valuable in industrial settings.
  • Flavor and Fragrance: This compound is known to impart a sweet, fruity aroma, which makes it a potential candidate in flavoring and fragrance industries.
  • Biological Significance: Pentan-2-one may have roles in biological systems, and while further studies are needed, its structure suggests potential interactions with enzymes and biological pathways.
  • Health and Safety: Understanding the health implications of pentan-2-one is crucial, as exposure can lead to irritation. Safe handling practices are essential in laboratory situations.

Chemical Reactions

Pentan-2-one is known for its reactivity in various chemical reactions, including:

  • Nucleophilic Addition: It can undergo nucleophilic addition reactions due to its carbonyl group, leading to the formation of diverse derivatives.
  • Reduction Reactions: Pentan-2-one can be reduced to alcohols, showcasing its versatility in organic synthesis.

As a chemistry student or scientist, exploring the properties and applications of pentan-2-one can provide crucial insights into the behavior of ketones and their role in organic synthesis. Whether you are studying its functional applications or reactions, pentan-2-one remains a significant compound with diverse implications in both scientific and industrial fields.

Synonyms
2-Pentanone
107-87-9
PENTAN-2-ONE
METHYL PROPYL KETONE
Ethyl acetone
Pentanone
Ethylacetone
Methyl n-propyl ketone
Propyl methyl ketone
Metylopropyloketon
Methylpropyl ketone
Methyl-propyl-cetone
pentanone-2
2-Pentanone (natural)
FEMA No. 2842
4-methyl-2-butanone
n-propyl methyl ketone
HSDB 158
n-C3H7COCH3
NSC 5350
EINECS 203-528-1
UN1249
BRN 0506058
DTXSID0021888
UNII-I97392I10V
CHEBI:16472
Methyl-n-propyl ketone
NSC-5350
2-PENTANONE [FCC]
2-PENTANONE [FHFI]
DTXCID301888
EC 203-528-1
METHYL PROPYL KETONE [MI]
4-01-00-03271 (Beilstein Handbook Reference)
METHYL PROPYL KETONE [HSDB]
I97392I10V
UN 1249
FEMA Number 2842
Metylopropyloketon [Polish]
CAS-107-87-9
Methyl-propyl-cetone [French]
AI3-32118
methylpropylcetone
2-pentanal
MFCD00009400
ETHYLACETON
Methyl npropyl ketone
2Pentanone (natural)
ISOAMINO PENTANE
2-Pentanone (OSHA)
3bh3
ISOBUTYL CARBYLAMINE
Methyl propyl ketone [UN1249] [Flammable liquid]
CHEMBL45345
WLN: 3V1
2-Pentanone, analytical standard
FEMA 2842
NSC5350
2-Pentanone, for HPLC, 99.5%
Methyl propyl ketone (ACGIH:OSHA)
Tox21_201670
Tox21_303016
LMFA12000003
2-Pentanone, >=98%, FCC, FG
2-Pentanone, reagent grade, >=90%
AKOS000121554
2-Pentanone, >=99.0%, natural, FG
NCGC00249095-01
NCGC00256617-01
NCGC00259219-01
FP139318
2-Pentanone, ultrapure grade, >=99.5%
NS00009081
P0060
EN300-21239
C01949
A801775
Q209460
Methyl propyl ketone [UN1249] [Flammable liquid]
F0001-0145
2-Pentanone, ReagentPlus(R), >=99%, purified by redistillation