Eicosanoic acid, ethyl ester

• Formula: C₂₂H₄₄O₂
• Molecular weight: 340.5836
• IUPAC Standard InChI: InChI=1S/C22H44O2/c1-3-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24-4-2/h3-21H2,1-2H3 Copy

  
• IUPAC Standard InChIKey: YBKSMWBLSBAFBQ-UHFFFAOYSA-N Copy
• CAS Registry Number: 18281-05-5
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Ethyl icosanoate; Ethyl arachidate; Ethyl eicosanoate; Arachidic acid, ethyl ester
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • IR Spectrum
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
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Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Reduced pressure boiling point

Enthalpy of vaporization

Enthalpy of sublimation

Enthalpy of fusion

Enthalpy of phase transition

IR Spectrum

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Gas Phase Spectrum

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Additional Data

Gas Chromatography

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Kovats' RI, polar column, isothermal

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Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Van Den Dool and Kratz RI, polar column, temperature ramp

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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References

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Gas Chromatography, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Freedman, Bagby, et al., 1989
Freedman, B.; Bagby, M.O.; Khoury, H., Correlation of heats of combustion with empirical formulas for fatty alcohols, J. Am. Oil Chem. Soc., 1989, 66, 595-596. [all data]

Becker and Strating, 1940
Becker, H.J.; Strating, J., Preparation of Several Crystalline Aliphatic Hydrocarbons in the Pure State, Rec. Trav. Chim., 1940, 59, 933-46. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Omar, 1967
Omar, M.M., Vapour pressures, heats of sublimation, and heats of vaporisation for straight-chain ethyl esters, J. Chem. Soc., C, 1967, 2038, https://doi.org/10.1039/j39670002038 . [all data]

King and Garner, 1934
King, A.M.; Garner, W.E., The heats of crystallisation of the ethyl esters of the monobasic aliphatic acids, 1934, J. [all data]

Korhonen, 1985
Korhonen, I.O.O., Gas-liquid chromatographic analyses. XLIII. Retention increments for 2-chloro-, 2,2-dichloro- and 2,2,2-trichloroethyl esters of aliphatic C₂-C₂₀ n-alkanoic acids on SE-30 and OV-351 capillary columns, J. Chromatogr., 1985, 329, 43-56, https://doi.org/10.1016/S0021-9673(01)81894-X . [all data]

Andriamaharavo, 2014
Andriamaharavo, N.R., Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2014. [all data]

Isidorov, Krajewska, et al., 2001
Isidorov, V.A.; Krajewska, U.; Dubis, E.N.; Jdanova, M.A., Partition coefficients of alkyl aromatic hydrocarbons and esters in a hexane-acetonitrile system, J. Chromatogr. A, 2001, 923, 1-2, 127-136, https://doi.org/10.1016/S0021-9673(01)00929-3 . [all data]

Okumura, 1991
Okumura, T., retention indices of environmental chemicals on methyl silicone capillary column, Journal of Environmental Chemistry (Japan), 1991, 1, 2, 333-358, https://doi.org/10.5985/jec.1.333 . [all data]

Erdemoglu, Sener, et al., 2003
Erdemoglu, N.; Sener, B.; Demirci, B.; Baser, K.H.C., The glycosidically bound volatile compounds of Taxus baccata, Chem. Nat. Compd. (Engl. Transl.), 2003, 39, 2, 195-198, https://doi.org/10.1023/A:1024870031960 . [all data]

Notes

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• Symbols used in this document:
  

  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔHtrs	Enthalpy of phase transition
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔvapH	Enthalpy of vaporization

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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