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Hexadecanal

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Identification
Molecular formula
C16H32O
CAS number
629-80-1
IUPAC name
hexadecanal
State
State

At room temperature, hexadecanal is typically in a solid state. However, it is close to its melting point, so it may become slightly soft or wax-like depending on the ambient temperature.

Melting point (Celsius)
29.00
Melting point (Kelvin)
302.15
Boiling point (Celsius)
305.00
Boiling point (Kelvin)
578.15
General information
Molecular weight
240.44g/mol
Molar mass
240.4410g/mol
Density
0.8268g/cm3
Appearence

Hexadecanal appears as a white, crystalline solid or a wax-like substance. It is slightly greasy to the touch and emits a characteristic odor often described as that of wax or solid fat.

Comment on solubility

Solubility of Hexadecanal (C16H32O)

Hexadecanal, a long-chain fatty aldehyde, exhibits distinctive solubility characteristics due to its molecular structure. Here are some key points regarding its solubility:

  • Solvent Compatibility: Hexadecanal is generally insoluble in water owing to its long hydrophobic hydrocarbon chain.
  • Non-polar Solvents: It is quite soluble in non-polar organic solvents such as hexane, chloroform, and ether. This enhanced solubility is attributed to the compound’s ability to engage in van der Waals interactions with the solvent molecules.
  • Temperature Influence: The solubility of hexadecanal may also increase with temperature, as higher temperatures generally promote molecular movement and interactions.
  • Functional Groups: The presence of the aldehyde functional group contributes to its moderate solubility in alcohols, albeit less than the corresponding alcohols themselves.

In summary, while hexadecanal is insoluble in water due to its hydrophobic character, its solubility in non-polar solvents and alcohols opens the door for various applications in organic chemistry and industrial processes. Understanding these solubility properties is crucial for utilizing hexadecanal effectively in practical scenarios.

Interesting facts

Interesting Facts About Hexadecanal

Hexadecanal, a long-chain aldehyde, is particularly noteworthy due to its significance in various biological and industrial contexts. Here are some intriguing aspects of this compound:

  • Biological Relevance: Hexadecanal plays a critical role in nature, particularly in the formation of waxy cuticles on plant leaves. These cuticles serve to reduce water loss and protect plants from environmental stresses.
  • Flavor and Aroma: This compound is known for its pleasant odor reminiscent of rose and is often used in the fragrance industry. It functions as a flavoring agent in food products, providing a unique taste that enhances consumer experiences.
  • Natural Occurrence: Hexadecanal is found naturally in various sources, including certain oils and plant extracts, highlighting its potential in natural product chemistry.
  • Synthesis: It can be synthesized through several methods, including the oxidation of hexadecanol or the ozonolysis of unsaturated fatty acids. This versatility makes it an interesting subject for organic synthesis enthusiasts.
  • Applications in Chemistry: Hexadecanal is significant in forming aligned self-assembled monolayers on surfaces, which are critical for various applications in materials science and nanotechnology.
  • Potential in Cosmetic Formulations: Owing to its skin-conditioning properties, hexadecanal is being explored for use in cosmetic formulations, providing moisture and improving the texture of skin products.

In summary, hexadecanal is more than just a simple aldehyde; it bridges the gap between biology, industry, and chemistry, making it a compound of great interest in scientific research and practical applications.

Synonyms
hexadecanal
palmitaldehyde
629-80-1
1-hexadecanal
N-hexadecanal
16-Hexadecanal
Hexadecanaldehyde
Palmitic aldehyde
palmitoyl aldehyde
cetyl aldehyde
hexadecylaldehyde
EINECS 211-111-0
UNII-WQD27655QE
WQD27655QE
CHEBI:17600
AI3-24252
MFCD00055568
N-HEXADECAN-1-AL
DTXSID5042039
Palmityl Aldehyde
SCHEMBL4481
629-80-1 (unlabeled)
GTPL6627
Palmitaldehyde, 16-Hexadecanal
QSPL 064
CHEMBL1235338
DTXCID3022039
LMFA06000088
RB3019
AKOS005145523
CS-W004305
DB03381
FH23779
HY-W004305
AS-56311
SY053520
DB-073236
H1296
NS00022585
Palmitaldehyde;1-Hexadecanal;Hexadecanaldehyde
C00517
BRD-K35114608-001-01-7
Q27077978
211-111-0