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caesium sulphate


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
Deltafgas-268.301kcal/molReviewChase, 1998Data last reviewed in June, 1979
Quantity Value Units Method Reference Comment
gas,1 bar97.149cal/mol*KReviewChase, 1998Data last reviewed in June, 1979

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) 3000. - 6000.
A 37.51960
B 0.132432
C -0.026781
D 0.001853
E -1.865810
F -284.7349
G 134.6460
H -268.3000
ReferenceChase, 1998
Comment Data last reviewed in June, 1979

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
Deltafliquid-334.641kcal/molReviewChase, 1998Data last reviewed in June, 1979
Quantity Value Units Method Reference Comment
liquid,1 bar58.910cal/mol*KReviewChase, 1998Data last reviewed in June, 1979
Quantity Value Units Method Reference Comment
Deltafsolid-344.799kcal/molReviewChase, 1998ii phase; Data last reviewed in June, 1979

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) 1278. - 3000.
A 49.40010
B -5.504891×10-8
C 2.342300×10-8
D -3.357849×10-9
E -1.039180×10-8
F -353.2481
G 109.4220
H -334.6420
ReferenceChase, 1998
Comment Data last reviewed in June, 1979

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. - 800.800. - 1200.298. - 600.600. - 1278.
A 7.337849-36.8982198.541309.554209
B 125.3180146.2330-348.892036.68210
C -182.0170-75.83979600.38700.253829
D 116.387019.06870-326.2041-0.069318
E 0.0616176.058141-1.179081-0.010792
F -350.9749-322.9259-359.5261-340.9500
G 29.55691-9.714781256.124065.47971
H -344.8000-344.8000-337.0349-337.0349
ReferenceChase, 1998Chase, 1998Chase, 1998Chase, 1998
Comment ii phase; Data last reviewed in June, 1979 ii phase; Data last reviewed in June, 1979 i phase; Data last reviewed in June, 1979 i phase; Data last reviewed in June, 1979

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 by: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference
8.9 ± 0.5EIFicalora, Uy, et al., 1968

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
Cs2O+10.6 ± 0.5?EIFicalora, Uy, et al., 1968 

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]

Ficalora, Uy, et al., 1968
Ficalora, P.J.; Uy, O.M.; Muenow, D.W.; Margrave, J.L., Mass spectrometric studies at high temperatures: XXIX. Thermal decomposition and sublimation of alkali metal sulfates, J. Am. Ceram. Soc., 1968, 51, 574. [all data]


Notes

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