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Diacetyl

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Identification
Molecular formula
C5H8O2
CAS number
431-03-8
IUPAC name
pentane-2,3-dione
State
State

At room temperature, diacetyl is in a liquid state.

Melting point (Celsius)
-2.00
Melting point (Kelvin)
271.15
Boiling point (Celsius)
88.10
Boiling point (Kelvin)
361.25
General information
Molecular weight
86.09g/mol
Molar mass
86.0890g/mol
Density
0.9904g/cm3
Appearence

Diacetyl is a yellowish-green liquid.

Comment on solubility

Solubility of Pentane-2,3-dione

Pentane-2,3-dione, with the chemical formula C5H8O2, exhibits interesting solubility properties that can be attributed to its molecular structure. This compound is a diketone, possessing two carbonyl groups that significantly influence its interactions with solvents.

When evaluating the solubility of pentane-2,3-dione, consider the following points:

  • Polarity: The presence of hydroxyl groups contributes to the polarity of the molecule, making it moderately soluble in polar solvents.
  • Water Solubility: Pentane-2,3-dione is notably soluble in water due to hydrogen bonding interactions.
  • Organic Solvents: It is also soluble in common organic solvents like ethanol and acetone, where it can readily engage in dipole-dipole interactions.
  • Temperature Influence: Like many organic compounds, its solubility can increase with temperature, facilitating more effective dissolving in various solvents.

In conclusion, with its dual functional groups and moderate polarity, pentane-2,3-dione demonstrates a good solubility profile in both polar and non-polar solvents, highlighting the versatile nature of this compound in chemical applications.

Interesting facts

Interesting Facts about Pentane-2,3-dione

Pentane-2,3-dione, also known by its common name as acetylacetone, is a fascinating compound that holds a significant place in organic chemistry. This diketone features two carbonyl functional groups, making it a versatile molecule for various applications. Here are some notable aspects:

  • Dual Carbonyls: The presence of the two carbonyl groups allows pentane-2,3-dione to participate in several chemical reactions, including nucleophilic addition and condensation reactions.
  • Chelation Properties: Pentane-2,3-dione is well-known for its ability to chelate metal ions, forming stable complexes. This property is widely utilized in the field of coordination chemistry.
  • Solvent in Organic Reactions: Its unique structure allows it to act as a solvent in various organic reactions, aiding in the synthesis and purification of other compounds.
  • Applications in Organic Synthesis: Pentane-2,3-dione serves as a key building block in synthesizing important organic compounds, including pharmaceuticals, agrochemicals, and dyes.
  • Color Change Indicator: When pentane-2,3-dione interacts with certain metal ions, it can change color, making it useful in analytical applications to detect metal ions in solution.

In the words of renowned chemist Linus Pauling, *“The greatest asset of a scientific discovery is not what it will do for us, but rather what it will show us about ourselves.”* Just as this compound reveals the intricacies of organic chemistry, it also opens pathways for further investigations into its properties and potential applications.

With its intriguing characteristics and versatility, pentane-2,3-dione continues to captivate chemists and researchers alike, showcasing the beauty and complexity of chemical reactions.

Synonyms
2,3-PENTANEDIONE
pentane-2,3-dione
600-14-6
Acetylpropionyl
Acetyl propionyl
2,3-Pentadione
Acetylpropionyl (VAN)
FEMA No. 2841
Acetyl propionyl (natural)
Pentan-2,3-dione
ethyl methyl diketone
CCRIS 2946
UNII-K4WBE45SCM
K4WBE45SCM
NSC 7613
EINECS 209-984-8
BRN 1699638
CHEBI:52774
NSC-7613
DTXSID6051435
HSDB 8326
2,3-PENTANEDIONE [FCC]
2,3-PENTANEDIONE [FHFI]
4-01-00-03660 (Beilstein Handbook Reference)
acetyl propanal
2,3Pentadione
beta, gamma-dioxopentane
DTXCID5030036
209-984-8
inchi=1/c5h8o2/c1-3-5(7)4(2)6/h3h2,1-2h
2,3-pentane-dione
MFCD00009313
CH3C(O)C(O)C2H5
Acetylpropionyl; NSC 7613
2,3-pentandione
?2,3-Pentanedione
2,3,-pentanedione
23-PENTANEDIONE
2,3-Pentanedione, 97%
2,3-Pentanedione (Standard)
SCHEMBL106990
CHEMBL192809
BDBM22765
FEMA 2841
NSC7613
HY-W012998R
2,3-Pentanedione, analytical standard
AKOS009156847
CS-W013714
HY-W012998
2,3-Pentanedione, >=96%, FCC, FG
2,3-Pentanedione, natural, >=96%, FG
DB-003231
NS00013104
P0051
EN300-39756
Q19903182