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Ethyl stearate

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Identification
Molecular formula
C20H40O2
CAS number
111-61-5
IUPAC name
ethyl octadecanoate
State
State

Ethyl stearate is typically found as a liquid just above room temperature due to its melting point of about 32.5 °C. Below this temperature, it can solidify into a waxy solid.

Melting point (Celsius)
32.50
Melting point (Kelvin)
305.65
Boiling point (Celsius)
383.30
Boiling point (Kelvin)
656.45
General information
Molecular weight
312.54g/mol
Molar mass
312.5380g/mol
Density
0.8630g/cm3
Appearence

Ethyl stearate is a colorless to pale yellow liquid or solid, depending on the room temperature, as it is near its melting point. It has a faint, waxy odor that is characteristic of fatty acid esters.

Comment on solubility

Solubility of Ethyl Octadecanoate

Ethyl octadecanoate, with the chemical formula C20H40O2, presents interesting solubility properties that are important to consider. Here’s a breakdown of its solubility characteristics:

  • Solvent Interaction: Ethyl octadecanoate is generally non-polar and is well-soluble in organic solvents such as hexane and chloroform.
  • Water Solubility: It is insoluble in water due to its long hydrocarbon chain, which repels water molecules.
  • Solubility in Alcohols: Moderate solubility can be observed in alcohols like ethanol, primarily due to the presence of both hydrophobic and hydrophilic parts in the molecule.

This unique solubility behavior is primarily influenced by the balance between its hydrophobic alkyl chain and the hydrophilic ester functional group. As a result:

  • Applications: Ethyl octadecanoate is often utilized in various applications, including as a flavoring agent and as a solvent in cosmetic formulations, where its solubility in non-polar solvents is advantageous.

Understanding the solubility of ethyl octadecanoate can aid in determining its application in various chemical processes and formulations. As you explore this compound, keep in mind that its solubility properties are a significant factor in its functionality.

Interesting facts

Interesting Facts about Ethyl Octadecanoate

Ethyl octadecanoate, also known as ethyl stearate, is an intriguing compound in the realm of organic chemistry. It is an ester formed from the reaction of ethanol and octadecanoic acid (stearic acid). Here are some fascinating aspects about this compound:

  • Natural Occurrence: Ethyl octadecanoate can be found naturally in various fats and oils, contributing to the flavor and aroma of certain foods.
  • Culinary Delight: Its pleasant fruity scent makes it a popular choice in the food industry, often used as a flavoring agent or fragrance in food products.
  • Cosmetic Applications: The compound is commonly used in cosmetics and personal care products due to its emollient properties, helping to soften and smooth the skin.
  • Biodegradability: As a naturally occurring ester, ethyl octadecanoate is biodegradable, making it an environmentally friendly option compared to synthetic alternatives.
  • Research Applications: Scientists study its properties and applications in biodiesel production and as a potential bio-lubricant due to its favorable viscosity characteristics.

As a compound derived from both a fatty acid and alcohol, ethyl octadecanoate showcases the beautiful interplay of organic chemistry. Its multiple applications across industries highlight the versatility of esters and their importance in both everyday life and scientific research.

Synonyms
ETHYL STEARATE
111-61-5
Ethyl octadecanoate
Stearic acid ethyl ester
Octadecanoic acid, ethyl ester
Ethyl n-octadecanoate
Stearic acid, ethyl ester
Dicyclohexylammonium sulfate
FEMA No. 3490
NSC 8919
EINECS 203-887-4
UNII-C64RTC734W
MFCD00009006
BRN 1788183
C64RTC734W
AI3-01781
NSC-8919
Radia 7185
Octadecanoic acid-ethyl ester
DTXSID5059406
ETHYL STEARATE [USP-RS]
CHEBI:84936
ETHYL OCTADECANOATE [FHFI]
4-02-00-01218 (Beilstein Handbook Reference)
STEARIC ACID ETHYL ESTER [MI]
ETHYL STEARATE (USP-RS)
Ethyl Stearate; Octadecanoic acid ethyl ester
ethyl-stearate
Ethyloctadecanoate
Ethyl ocatadecanoate
Ethyl stearate, >=97%
Dicyclohexylammonium sulphate
octadecanoic acid ethyl ester
SCHEMBL24287
Octacecanoic acid, ethy ester
ETHYL STEARATE [INCI]
QSPL 077
QSPL 080
QSPL 085
QSPL 088
QSPL 132
DTXCID5033202
FEMA 3490
NSC8919
HMS3650O05
Ethyl stearate, analytical standard
Ethyl octadecanoate (ethyl stearate)
LMFA07010883
AKOS004910332
CS-W014525
Ethyl stearate, 1mg/ml in Acetonitrile
HY-W013809
Ethyl stearate, >=99% (capillary GC)
BS-42291
NS00012462
S0079
S0365
D92247
Ethyl stearate, Vetec(TM) reagent grade, 97%
SR-01000946815
Q9344811
SR-01000946815-1
Ethyl stearate, United States Pharmacopeia (USP) Reference Standard
203-887-4