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Diazene, dibutyl

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

Quantity Value Units Method Reference Comment
Deltafgas19.3kJ/molN/ALebedeva, Masalitinova, et al., 1980Value computed using «DELTA»fHliquid° value of -30.0 kj/mol from Lebedeva, Masalitinova, et al., 1980 and «DELTA»vapH° value of 49.3 kj/mol from Engel, Montgomery, et al., 1978.; DRB
Deltafgas9.2 ± 3.8kJ/molCcbEngel, Montgomery, et al., 1978ALS

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

Quantity Value Units Method Reference Comment
Deltafliquid-30.kJ/molCcbLebedeva, Masalitinova, et al., 1980 
Deltafliquid-40.1 ± 3.8kJ/molCcbEngel, Montgomery, et al., 1978 
Quantity Value Units Method Reference Comment
Deltacliquid-5690. ± 1.kJ/molCcbLebedeva, Masalitinova, et al., 1980 
Deltacliquid-5680.4 ± 3.6kJ/molCcbEngel, Montgomery, et al., 1978 

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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Deltavap49.31kJ/molN/AMajer and Svoboda, 1985 
Deltavap49.3 ± 0.2kJ/molVEngel, Montgomery, et al., 1978ALS
Deltavap49.3kJ/molN/AEngel, Montgomery, et al., 1978DRB
Deltavap49.3 ± 0.2kJ/molCEngel, Montgomery, et al., 1978AC

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
332. - 333.0.024Buckingham and Donaghy, 1982BS

Reaction 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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

Hydrogen + Diazene, dibutyl = Hydrazine, 1,2-dibutyl-

By formula: H2 + C8H18N2 = C8H20N2

Quantity Value Units Method Reference Comment
Deltar-68.6 ± 0.8kJ/molChydEngel, Owens, et al., 1993liquid phase; solvent: Hexane

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

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

View large format table.

Column type Active phase I Reference Comment
CapillaryMethyl Silicone962.Zenkevich, 1999Program: not specified

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas Chromatography, NIST Free Links, Notes

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

Lebedeva, Masalitinova, et al., 1980
Lebedeva, N.D.; Masalitinova, T.N.; Mon'yakova, O.N.; Oleinikova, T.P., Energy of hydrazone = azo compound tautomeric transformation, J. Org. Chem. USSR (Engl. Transl.), 1980, 16, 226-228. [all data]

Engel, Montgomery, et al., 1978
Engel, P.S.; Montgomery, R.L.; Mansson, M.; Leckonby, R.A.; Foyt, H.L.; Rossini, F.D., Enthalpies of combustion, vaporization, and formation of methyl-n-butyldiazene and di-n-butyldiazene, J. Chem. Thermodyn., 1978, 10, 205-211. [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]

Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M., Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]

Engel, Owens, et al., 1993
Engel, P.S.; Owens, W.H.; Wang, C., The heat of oxidation of 1,2-di-n-butylhydrazine to azo-n-butane, J. Phys. Chem., 1993, 97, 10486-10488. [all data]

Zenkevich, 1999
Zenkevich, I.G., Precalculation of Gas Chromatographic Retention Indices of Organic Compounds from Boiling Points of their Structural Analogues, Zh. Struct. Khim., 1999, 40, 1, 121-130. [all data]


Notes

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