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Nitrogen dioxide

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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.

Quantity Value Units Method Reference Comment
Deltafgas7.911kcal/molReviewChase, 1998Data last reviewed in September, 1964
Quantity Value Units Method Reference Comment
gas,1 bar57.371cal/mol*KReviewChase, 1998Data last reviewed in September, 1964

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) 298. - 1200.1200. - 6000.
A 3.85004113.58160
B 18.139400.176399
C -12.99890-0.034589
D 3.4196400.002337
E 0.057223-1.304951
F 6.2558900.680319
G 57.4901169.43251
H 7.9099007.909900
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1964 Data last reviewed in September, 1964

Reaction thermochemistry data

Go To: Top, Gas 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 as indicated in comments:
B - John E. Bartmess
ALS - 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

(Nitrogen oxide anion bullet 4294967295Nitrogen dioxide) + Nitrogen dioxide = Nitrogen oxide anion

By formula: (NO2- bullet 4294967295NO2) + NO2 = NO2-

Quantity Value Units Method Reference Comment
Deltar107.31 ± 0.30kcal/molN/ADavidson, Fehsenfeld, et al., 1977gas phase; Relative to HBr, reevaluated with current HBr acidity. Excited state at 3.0 eV,81WU /TIE.; B
Deltar<46.10kcal/molPDisSmith, Lee, et al., 1979gas phase; Isomer: O4- + NO ->.; B
Deltar66.0 ± 5.0kcal/molPDisSmith, Lee, et al., 1978gas phase; B

0.76Nitrogen dioxide + 0.62Dinitrogen tetroxide + Methyl nitrate = Dinitrogen pentoxide + Methyl nitrite

By formula: 0.76NO2 + 0.62N2O4 + CH3NO3 = N2O5 + CH3NO2

Quantity Value Units Method Reference Comment
Deltar8.662kcal/molCmRay and Ogg, 1959liquid phase; ALS

Methyl nitrite + Nitric acid = 2Nitrogen dioxide + Methyl Alcohol

By formula: CH3NO2 + HNO3 = 2NO2 + CH4O

Quantity Value Units Method Reference Comment
Deltar15.89kcal/molEqkSilverwood and Thomas, 1967gas phase; ALS

References

Go To: Top, Gas 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]

Davidson, Fehsenfeld, et al., 1977
Davidson, J.A.; Fehsenfeld, F.C.; Howard, C.J., The heats of formation of NO3- and NO3- association complexes with HNO3 and HBr, Int. J. Chem. Kinet., 1977, 9, 17. [all data]

Smith, Lee, et al., 1979
Smith, G.P.; Lee, L.C.; Moseley, J.T., Photodissociation and photodetachment of molecular negative ions. VIII. Nitrogen oxides and hydrates,3500-8250 Å, J. Chem. Phys., 1979, 71, 4034. [all data]

Smith, Lee, et al., 1978
Smith, G.P.; Lee, L.C.; Cosby, P.C.; Peterson, J.R.; Moseley, J.T., Photodissociation and photodetachment of molecular negative ions. V. Atmospheric ions from 7000 to 8400 A), J. Chem. Phys., 1978, 68, 3818. [all data]

Ray and Ogg, 1959
Ray, J.D.; Ogg, R.A., Jr., The heat of formation of methyl nitrate, J. Phys. Chem., 1959, 63, 1522-1523. [all data]

Silverwood and Thomas, 1967
Silverwood, R.; Thomas, J.H., Reaction between methanol and nitrogen dioxide. Part 1.-Low-temperature reaction and the thermodynamic constants of methyl nitrite, J. Chem. Soc. Faraday Trans., 1967, 63, 2476-2479. [all data]


Notes

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