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Heptanoic acid

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Identification
Molecular formula
C7H14O2
CAS number
111-14-8
IUPAC name
heptanoic acid
State
State

At room temperature, heptanoic acid is in a liquid state.

Melting point (Celsius)
-7.50
Melting point (Kelvin)
265.65
Boiling point (Celsius)
223.20
Boiling point (Kelvin)
496.35
General information
Molecular weight
130.19g/mol
Molar mass
130.1860g/mol
Density
0.9208g/cm3
Appearence

Heptanoic acid is a colorless, oily liquid with an unpleasant, rancid odor. It is typically found in its pure form as a free-flowing liquid at room temperature.

Comment on solubility

Solubility of Heptanoic Acid

Heptanoic acid, with the chemical formula C7H14O2, exhibits intriguing solubility characteristics due to its molecular structure.

As a carboxylic acid, it has a hydrophilic –COOH (carboxyl) group, which enhances its solubility in polar solvents. Here are some points regarding its solubility:

  • Solubility in Water: Heptanoic acid is sparingly soluble in water. This limited solubility is due to the relatively long hydrophobic hydrocarbon tail, which disrupts hydrogen bonding in water.
  • Solubility in Organic Solvents: It is highly soluble in organic solvents such as ethanol, ether, and chloroform, where the hydrophobic interactions can be more favorably accommodated.
  • Temperature Dependence: Increased temperature can enhance the solubility of heptanoic acid in water, as higher kinetic energy reduces the effects of intermolecular forces.
  • pH Influence: The solubility can also vary with pH; in acidic conditions, heptanoic acid remains largely un-ionized, affecting its solubility profile.

In summary, while heptanoic acid displays limited solubility in water due to its long carbon chain, its solubility significantly increases in organic solvents, showcasing a fascinating interplay between hydrophilic and hydrophobic interactions.

Interesting facts

Interesting Facts about Heptanoic Acid

Heptanoic acid, also known as enanthic acid, is a fascinating carboxylic acid with the molecular structure featuring a straight-chain length of seven carbon atoms. Here are some intriguing aspects to consider:

  • Biological Significance: Heptanoic acid is important in various biological systems. It naturally occurs in certain animal fats and plant oils, reflecting its relevance in biochemistry.
  • Culinary Uses: This compound has a unique presence in the food industry, particularly in dairy products, where it contributes to the characteristic flavor of products like butter and cheese.
  • Industry Applications: Heptanoic acid is widely used in the production of esters, which are vital in the manufacture of flavorings, perfumes, and cosmetics. Its derivatives are often employed to enhance aroma and flavor profiles.
  • Research Potential: This compound has captured the attention of scientists due to its potential application in the formulation of biodegradable lubricants and surfactants, paving the way for more environmentally friendly products.

As a compound that balances both utility and versatility, heptanoic acid showcases the intersection of chemistry and everyday life. Understanding its properties and applications can provide valuable insights into both industrial processes and culinary innovations.

Whether you are a chemistry student or a professional in the field, exploring the various aspects of heptanoic acid can deepen your appreciation for the diverse roles that chemical compounds play in our world.

Synonyms
HEPTANOIC ACID
111-14-8
Enanthic acid
n-Heptanoic acid
Oenanthic acid
Enanthylic acid
Heptoic acid
n-Heptylic acid
n-Heptoic acid
Heptylic acid
Oenanthylic acid
1-Hexanecarboxylic acid
Hexacid C-7
FEMA No. 3348
Heptanoic acid (natural)
NSC 2192
CCRIS 6042
enanthoic acid
Hepthlic acid
HSDB 5546
UNII-THE3YNP39D
THE3YNP39D
EINECS 203-838-7
MFCD00004426
Technetium Medronate
BRN 1744723
Heptanoic--d7 Acid
DTXSID2021600
CHEBI:45571
AI3-02073
Artec ultra conditioning teat dip
HEPTANOIC AICD-
NSC-2192
DTXCID301600
HEPTANOIC-2,2-D2 ACID
NSC2192
EC 203-838-7
4-02-00-00958 (Beilstein Handbook Reference)
C7:0
HEPTANOIC-5,5,6,6-D4 ACID
Heptanoic Acid Anion
sec-Heptanoic acid
101488-09-9
ENANTHIC ACID (USP-RS)
ENANTHIC ACID [USP-RS]
1219802-86-4
CAS-111-14-8
SHV
352431-36-8
TESTOSTERONE ENANTATE IMPURITY A (EP IMPURITY)
TESTOSTERONE ENANTATE IMPURITY A [EP IMPURITY]
Heptansaeure
Oenanthsaeure
Cynergy
Hexacid
heptanoic-acid
Artec
WinterCare
Cynergy Barrier
Winter Dip
1-heptanoic acid
Chem-Star Recover
Acid C7 heptanoic
DKL
hexane carboxylic acid
Chem-Star Code Green
Heptanoic acid, 96%
hexane-1-carboxylic acid
Chem-Star Barrier 710
Heptanoic acid, >=97%
SCHEMBL3564
WLN: QV6
5-HEXACID C-7
HEPTANOIC ACID [MI]
NCIOpen2_005395
Heptanoic acid, 97%, FG
Heptanoic acid, natural, FG
MLS002415755
CH3-(CH2)5-COOH
HEPTANOIC ACID [FHFI]
HEPTANOIC ACID [HSDB]
CHEMBL320358
HMS2267D15
Heptanoic acid, analytical standard
Tox21_201830
Tox21_300342
FA 7:0
Heptanoic acid, >=98.0% (GC)
Heptanoic acid, >=99.0% (GC)
LMFA01010007
STL481898
AKOS000119950
DB02938
FH33951
HEPTANOIC ACID (ENANTIC ACID)
NCGC00091189-01
NCGC00091189-02
NCGC00091189-03
NCGC00254267-01
NCGC00259379-01
SMR001261667
H0030
NS00010236
EN300-19601
C17714
Q297592
E3F2CC4A-F2B5-4353-8922-355FA750FEAC
F0001-0233
Z104474412
Enanthic Acid, United States Pharmacopeia (USP) Reference Standard
InChI=1/C7H14O2/c1-2-3-4-5-6-7(8)9/h2-6H2,1H3,(H,8,9
203-838-7