Benzidine

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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

Hydrazine, 1,2-diphenyl- = Benzidine

By formula: C12H12N2 = C12H12N2

Quantity Value Units Method Reference Comment
Δr-102.8 ± 1.0kJ/molCmPongratz, Bohmert-Sub, et al., 1944solid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -106.4 ± 0.2 kJ/mol; Heat of transposition

Phthalic anhydride + Benzidine = Benzoic acid, 2-[[(4'-amino[1,1'-biphenyl]-4-yl)amino]carbonyl]-

By formula: C8H4O3 + C12H12N2 = C20H16N2O3

Quantity Value Units Method Reference Comment
Δr-67.4 ± 0.4kJ/molEqkKaryakin, Rabinovich, et al., 1978liquid phase; solvent: DMF

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, temperature ramp

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Column type Active phase I Reference Comment
CapillarySE-542111.Harland, Cumming, et al., 1986He, 50. C @ 2. min, 8. K/min, 250. C @ 12. min; Column length: 25. m; Column diameter: 0.32 mm
PackedSE-302070.Marozzi, Gambaro, et al., 1982Gas Chrom P, 2.5 K/min; Column length: 2. m; Tstart: 120. C; Tend: 200. C

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

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Column type Active phase I Reference Comment
CapillaryOV-12042.Waggott and Davies, 1984Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified

References

Go To: Top, Reaction thermochemistry data, Gas Chromatography, Notes

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

Pongratz, Bohmert-Sub, et al., 1944
Pongratz, A.; Bohmert-Sub, S.; Scholtis, K., Zur thermochemie der benzidin-umlagerung, Ber., 1944, 77, 651-735. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Karyakin, Rabinovich, et al., 1978
Karyakin, N.V.; Rabinovich, I.B.; Pal'tseva, N.G., Thermodynamics of the reactions of aromatic diamines with dianhydrides of tetracarboxylic acids, Polym. Sci. USSR, 1978, 20, 2274-2279. [all data]

Harland, Cumming, et al., 1986
Harland, B.J.; Cumming, R.I.; Gillings, E., The Kovats indexes of some organic micropollutants on an SE54 capillary column, EUR, I Org. Micropollut. Aquat. Environ., 1986, EUR 10388, 123-127. [all data]

Marozzi, Gambaro, et al., 1982
Marozzi, E.; Gambaro, V.; Saligari, E.; Mariani, R.; Lodi, F., Use of the retention index in gas chromatographic studies of drugs, J. Anal. Toxicol., 1982, 6, 4, 185-192, https://doi.org/10.1093/jat/6.4.185 . [all data]

Waggott and Davies, 1984
Waggott, A.; Davies, I.W., Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]


Notes

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