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Hydrazine

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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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafgas22.79kcal/molReviewChase, 1998Data last reviewed in December, 1965
Deltafgas36. ± 2.kcal/molIonWillis, Lossing, et al., 1976Appearance potentials; ALS
Deltafgas12.05kcal/molCmCole and Gilbert, 1951ALS
Quantity Value Units Method Reference Comment
Deltacgas-148.68kcal/molCmCole and Gilbert, 1951ALS
Quantity Value Units Method Reference Comment
gas,1 bar57.041cal/mol*KReviewChase, 1998Data last reviewed in December, 1965

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 800. - 2000.2000. - 6000.
A 8.40879629.01554
B 22.957121.151262
C -9.680044-0.182364
D 1.5937070.010333
E -0.208947-9.748208
F 18.64042-2.720149
G 59.6140172.97897
H 22.7900122.79001
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1965 Data last reviewed in December, 1965

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References, Notes

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

Quantity Value Units Method Reference Comment
Deltafliquid12.10kcal/molReviewChase, 1998Data last reviewed in December, 1965
Quantity Value Units Method Reference Comment
liquid,1 bar29.044cal/mol*KReviewChase, 1998Data last reviewed in December, 1965

Liquid Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 800.
A 11.51470
B 40.74713
C -24.09990
D 10.78239
E 0.161160
F 7.586783
G 32.71295
H 12.10000
ReferenceChase, 1998
Comment Data last reviewed in December, 1965

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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: 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

2,5-Pyrrolidinedione, 1-bromo- + 0.5Hydrazine = Hydrogen bromide + Succinimide + 0.5Nitrogen

By formula: C4H4BrNO2 + 0.5H4N2 = HBr + C4H5NO2 + 0.5N2

Quantity Value Units Method Reference Comment
Deltar-62.22 ± 0.11kcal/molCmHoward and Skinner, 1966solid phase; solvent: Aqueous solution; Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -62.55 ± 0.11 kcal/mol

N-Chlorosuccinimide + 0.5Hydrazine = Succinimide + Hydrogen chloride + 0.5Nitrogen

By formula: C4H4ClNO2 + 0.5H4N2 = C4H5NO2 + HCl + 0.5N2

Quantity Value Units Method Reference Comment
Deltar-67.78 ± 0.07kcal/molCmHoward and Skinner, 1966solid phase; solvent: Aqueous solution

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Willis, Lossing, et al., 1976
Willis, C.; Lossing, F.P.; Back, R.A., The heat of formation of N2H2 and the proton affinity of N2, Can. J. Chem., 1976, 54, 1-3. [all data]

Cole and Gilbert, 1951
Cole, L.G.; Gilbert, E.C., The heats of combustion of some nitrogen compounds and the apparent energy of the N-N bond, J. Am. Chem. Soc., 1951, 73, 5423-5427. [all data]

Howard and Skinner, 1966
Howard, P.B.; Skinner, H.A., Thermochemistry of some reactions of aqueous hydrazine with halogens, hydrogen halides and N-halogenosuccinimides, J. Chem. Soc. A, 1966, 1536-1540. [all data]

Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P., Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References