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Isobutylamine

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References, Notes

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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Deltafgas-23.57 ± 0.13kcal/molCcrGood and Moore, 1970ALS
Deltafgas-34.44kcal/molN/ALemoult, 1907Value computed using «DELTA»fHliquid° value of -178.0 kj/mol from Lemoult, 1907 and «DELTA»vapH° value of 33.9 kj/mol from Good and Moore, 1970.; DRB

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References, Notes

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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid-31.68 ± 0.12kcal/molCcrGood and Moore, 1970ALS
Deltafliquid-42.6kcal/molCcbLemoult, 1907ALS
Quantity Value Units Method Reference Comment
Deltacliquid-720.25 ± 0.10kcal/molCcrGood and Moore, 1970ALS
Deltacliquid-714.0kcal/molCcbLemoult, 1907ALS

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
46.4298.15Konicek and Wadso, 1971DH

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Mass spectrum (electron ionization), References, Notes

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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Tboil341. ± 1.KAVGN/AAverage of 9 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus186.5KN/ASimon and Huter, 1935Uncertainty assigned by TRC = 0.5 K; TRC
Tfus188.55KN/ASimon and Huter, 1935, 2Uncertainty assigned by TRC = 1.5 K; TRC
Tfus187.65KN/ATimmermans and Mattaar, 1921Uncertainty assigned by TRC = 0.5 K; TRC
Quantity Value Units Method Reference Comment
Tc516.9KN/AMajer and Svoboda, 1985 
Quantity Value Units Method Reference Comment
Deltavap8.10 ± 0.03kcal/molAVGN/AAverage of 7 values; Individual data points

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
7.316340.7N/AMajer and Svoboda, 1985 
8.99263.AStephenson and Malanowski, 1987Based on data from 248. - 347. K.; AC
7.82 ± 0.02313.CMajer, Svoboda, et al., 1979AC
7.55 ± 0.02328.CMajer, Svoboda, et al., 1979AC
8.01313.EBMajer, Svoboda, et al., 1979Based on data from 297. - 340. K.; AC

Enthalpy of vaporization

ΔvapH = A exp(-βTr) (1 − Tr)β
    ΔvapH = Enthalpy of vaporization (at saturation pressure) (kcal/mol)
    Tr = reduced temperature (T / Tc)

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Temperature (K) A (kcal/mol) beta Tc (K) Reference Comment
298. - 328.13.100.3355516.9Majer and Svoboda, 1985 

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
223. - 341.84.407331317.873-42.421Stull, 1947Coefficents calculated by NIST from author's data.

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References, Notes

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 NIST Mass Spectrometry Data Center, 1998.
NIST MS number 291567

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.


References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Notes

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

Good and Moore, 1970
Good, W.D.; Moore, R.T., Enthalpies of formation of ethylenediamine, 1,2,-propanediamine, 1,2,-butanediamine, 2-methyl-1,2-propanediamine, and isobutylamine C-N and N-F Thermochemical bond energies, J. Chem. Eng. Data, 1970, 15, 150-154. [all data]

Lemoult, 1907
Lemoult, M.P., Recherches theoriques et experimentales sur les chaleurs de combustion et de formation des composes organiques, Ann. Chim. Phys., 1907, 12, 395-432. [all data]

Konicek and Wadso, 1971
Konicek, J.; Wadso, I., Thermochemical properties of some carboxylic acids, amines and N-substituted amides in aqueous solution, Acta Chem. Scand., 1971, 25, 1541-1551. [all data]

Simon and Huter, 1935
Simon, A.; Huter, J., Vapor Pressure Curves, Melting Point and Chemical Constants of Dimethyl, Trimethyl- and Isobutylamines, Z. Elektrochem., 1935, 41, 28. [all data]

Simon and Huter, 1935, 2
Simon, A.; Huter, J., Z. Elektrochem., 1935, 41, 294. [all data]

Timmermans and Mattaar, 1921
Timmermans, J.; Mattaar, J.F., Freezing points of orgainic substances VI. New experimental determinations., Bull. Soc. Chim. Belg., 1921, 30, 213. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [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]

Majer, Svoboda, et al., 1979
Majer, Vladimír; Svoboda, Václav; Koubek, Josef; Pick, Jirí, Temperature dependence of heats of vaporization, saturated vapour pressures and cohesive energies for a group of amines, Collect. Czech. Chem. Commun., 1979, 44, 12, 3521-3528, https://doi.org/10.1135/cccc19793521 . [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]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References