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Pentanoic acid, 4-oxo-, methyl ester


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
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil469.2KN/AWeast and Grasselli, 1989BS

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
12.0327.AStephenson and Malanowski, 1987Based on data from 312. - 471. K. See also Stull, 1947.; AC
12.2410.N/ASchuette and Cowley, 1931AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
312.9 - 470.94.883442086.056-44.271Stull, 1947Coefficents calculated by NIST from author's data.

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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IR spectrum
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Additional Data

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Owner NIST Standard Reference Data Program
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Sadtler Research Labs Under US-EPA Contract
State gas

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


Mass spectrum (electron ionization)

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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

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Japan AIST/NIMC Database- Spectrum MS-NW-4264
NIST MS number 230643

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


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

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

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Column type Active phase I Reference Comment
CapillaryDB-5981.Dallüge, van Stee, et al., 200230. m/0.25 mm/1. «mu»m, He, 2.5 K/min; Tstart: 50. C; Tend: 200. C
CapillaryBPX-51002.Aaslyng, Elmore, et al., 199850. m/0.32 mm/0.50 «mu»m, He, 4. K/min; Tstart: 40. C; Tend: 280. C

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryDB-1946.Flath, Matsumoto, et al., 198960. m/0.32 mm/0.25 «mu»m, 4. K/min; Tstart: 50. C; Tend: 250. C
CapillaryDB-1948.Flath, Matsumoto, et al., 198960. m/0.32 mm/0.25 «mu»m, 4. K/min; Tstart: 50. C; Tend: 250. C

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillarySE-30956.Vinogradov, 2004Program: not specified

Normal alkane RI, polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryCarbowax 20M1560.Buttery, Ling, et al., 198350. C @ 30. min, 1. K/min, 170. C @ 60. min; Column length: 150. m; Column diameter: 0.64 mm

Normal alkane RI, polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryCarbowax 20M1534.Vinogradov, 2004Program: not specified

References

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes

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

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]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Schuette and Cowley, 1931
Schuette, H.A.; Cowley, Milford A., LEVULINIC ACID. II. THE VAPOR PRESSURES OF ITS ALKYL ESTERS (C 1 --C 6, J. Am. Chem. Soc., 1931, 53, 9, 3485-3489, https://doi.org/10.1021/ja01360a039 . [all data]

Dallüge, van Stee, et al., 2002
Dallüge, J.; van Stee, L.L.P.; Xu, X.; Williams, J.; Beens, J.; Vreuls, R.J.J.; Brinkman, U.A.Th., Unravelling the composition of very complex samples by comprehensive gas chromatography coupled to time-of-flight mass spectrometry. Cigarette smoke, J. Chromatogr. A, 2002, 974, 1-2, 169-184, https://doi.org/10.1016/S0021-9673(02)01384-5 . [all data]

Aaslyng, Elmore, et al., 1998
Aaslyng, M.D.; Elmore, J.S.; Mottram, D.S., Comparison of the aroma characteristics of acid-hydrolyzed and enzyme-hydrolyzed vegetable proteins produced from soy, J. Agric. Food Chem., 1998, 46, 12, 5225-5231, https://doi.org/10.1021/jf9806816 . [all data]

Flath, Matsumoto, et al., 1989
Flath, R.A.; Matsumoto, K.E.; Binder, R.G.; Cunningham, R.T.; Mon, T.R., Effect of pH on the volatiles of hydrolyzed protein insect baits, J. Agric. Food Chem., 1989, 37, 3, 814-819, https://doi.org/10.1021/jf00087a053 . [all data]

Vinogradov, 2004
Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]

Buttery, Ling, et al., 1983
Buttery, R.G.; Ling, L.C.; Teranishi, R.; Mon, T.R., Insect attractants: volatiles of hydrolizyed protein insect baits, J. Agric. Food Chem., 1983, 31, 4, 689-692, https://doi.org/10.1021/jf00118a003 . [all data]


Notes

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