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Sodium hydride


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
Deltafgas29.701kcal/molReviewChase, 1998Data last reviewed in March, 1963
Quantity Value Units Method Reference Comment
gas,1 bar45.026cal/mol*KReviewChase, 1998Data last reviewed in March, 1963

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. - 900.900. - 6000.
A 4.4413298.826831
B 10.643900.299826
C -9.602152-0.014660
D 3.2617500.001056
E 0.034890-0.344755
F 28.0982126.12359
G 47.8211054.26759
H 29.7001029.70010
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in March, 1963 Data last reviewed in March, 1963

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.

Quantity Value Units Method Reference Comment
Deltafsolid-13.49kcal/molReviewChase, 1998Data last reviewed in March, 1963
Quantity Value Units Method Reference Comment
solid9.567cal/mol*KReviewChase, 1998Data last reviewed in March, 1963

Solid 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. - 1500.
A 5.317230
B 17.13220
C -10.40900
D 2.255180
E -0.076739
F -16.00570
G 10.90490
H -13.49000
ReferenceChase, 1998
Comment Data last reviewed in March, 1963

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: John E. Bartmess

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Individual Reactions

Na- + Hydrogen cation = Sodium hydride

By formula: Na- + H+ = HNa

Quantity Value Units Method Reference Comment
Deltar345.12 ± 0.48kcal/molD-EAPatterson, Hotop, et al., 1974gas phase
Quantity Value Units Method Reference Comment
Deltar340.23 ± 0.58kcal/molH-TSPatterson, Hotop, et al., 1974gas phase

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]

Patterson, Hotop, et al., 1974
Patterson, T.A.; Hotop, H.; Kasdan, A.; Norcross, D.W.; Lineberger, W.C., Resonances in Alkali Negative-Ion Photodetachment and Electron Affinities of the Corresponding Neutrals, Phys. Rev. Lett., 1974, 32, 5, 189, https://doi.org/10.1103/PhysRevLett.32.189 . [all data]


Notes

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