zirconium dioxide


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
Δfgas-68.401kcal/molReviewChase, 1998Data last reviewed in December, 1965
Quantity Value Units Method Reference Comment
gas,1 bar65.425cal/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) 5000. to 6000.
A 13.85430
B 0.032608
C -0.006794
D 0.000480
E -0.439971
F -73.80581
G 80.23939
H -68.40019
ReferenceChase, 1998
Comment Data last reviewed in December, 1965

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
Δfliquid-244.541kcal/molReviewChase, 1998Data last reviewed in December, 1965
Quantity Value Units Method Reference Comment
liquid,1 bar17.84cal/mol*KReviewChase, 1998Data last reviewed in December, 1965
Quantity Value Units Method Reference Comment
Δfsolid-262.299kcal/molReviewChase, 1998Data last reviewed in December, 1965
Quantity Value Units Method Reference Comment
solid12.03cal/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) 2950. to 5000.
A 20.99993
B 0.000034
C -0.000006
D 4.321941×10-7
E 0.000094
F -255.2103
G 36.57768
H -244.5411
ReferenceChase, 1998
Comment Data last reviewed in December, 1965

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. to 1478.1478. to 2950.
A 16.5392017.80000
B 2.0430910.000000
C -0.2062430.000000
D 0.0588850.000000
E -0.3304890.000000
F -268.4309-266.5710
G 29.5878132.98870
H -262.3000-262.3000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1965 Data last reviewed in December, 1965

Gas phase ion energetics 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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
9.4 ± 0.2EIMurad and Hildenbrand, 1975LLK
9.6 ± 0.1EIRauh and Ackermann, 1974LLK
8. ± 0.5EIChupka, Berkowitz, et al., 1957RDSH

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics 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]

Murad and Hildenbrand, 1975
Murad, E.; Hildenbrand, D.L., Thermochemical properties of gaseous ZrO and ZrO2, J. Chem. Phys., 1975, 63, 1133. [all data]

Rauh and Ackermann, 1974
Rauh, E.G.; Ackermann, R.J., First ionization potentials of some refractory oxide vapors, J. Chem. Phys., 1974, 60, 1396. [all data]

Chupka, Berkowitz, et al., 1957
Chupka, W.A.; Berkowitz, J.; Inghram, M.G., Thermodynamics of the Zr-ZrO, system: the dissociation energies of ZrO and ZrO2, J. Chem. Phys., 1957, 26, 1207. [all data]


Notes

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