Cyanogen fluoride


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
Δfgas8.599kcal/molReviewChase, 1998Data last reviewed in June, 1969
Quantity Value Units Method Reference Comment
gas,1 bar53.872cal/mol*KReviewChase, 1998Data last reviewed in June, 1969

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. to 600.600. to 6000.
A 7.52178112.94920
B 12.922901.265120
C -11.75560-0.286804
D 4.9718700.021677
E -0.031007-0.599714
F 5.7729002.995720
G 59.4264166.68449
H 8.5999108.599910
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1969 Data last reviewed in June, 1969

Phase change 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:
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
5.35214.AStephenson and Malanowski, 1987Based on data from 201. to 227. K. See also Fawcett and Lipscomb, 1964 and Dykyj, 1970.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
196.8 to 226.43.83450677.148-50.579Fawcett and Lipscomb, 1964Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Method Reference Comment
6.91176.AStephenson and Malanowski, 1987Based on data from 147. to 191. K. See also Fawcett and Lipscomb, 1964.; AC
5.83166.N/AStull, 1947Based on data from 139. to 192. K.; AC
7.00168.N/ACosslett, 1931Based on data from 133. to 203. K.; AC

References

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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]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Fawcett and Lipscomb, 1964
Fawcett, F.S.; Lipscomb, R.D., Cyanogen Fluoride: Synthesis and Properties, J. Am. Chem. Soc., 1964, 86, 13, 2576-2579, https://doi.org/10.1021/ja01067a011 . [all data]

Dykyj, 1970
Dykyj, J., Petrochemica, 1970, 10, 2, 51. [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Cosslett, 1931
Cosslett, Vernon Ellis, Darstellung und Eigenschaften von Fluorcyan, Z. Anorg. Allg. Chem., 1931, 201, 1, 75-80, https://doi.org/10.1002/zaac.19312010108 . [all data]


Notes

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