Krypton

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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
gas,1 bar164.085 ± 0.003J/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
gas,1 bar164.08J/mol*KReviewChase, 1998Data last reviewed in March, 1982

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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 6000.
A 20.78603
B 4.850638×10-10
C -1.582916×10-10
D 1.525102×10-11
E 3.196347×10-11
F -6.197341
G 189.2390
H 0.000000
ReferenceChase, 1998
Comment Data last reviewed in March, 1982

Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Quantity Value Units Method Reference Comment
Tboil119.78KN/AZiegler, Yarbrough, et al., 1964Uncertainty assigned by TRC = 0.05 K; TRC
Quantity Value Units Method Reference Comment
Ttriple115.76KN/AZiegler, Yarbrough, et al., 1964Uncertainty assigned by TRC = 0.08 K; TRC
Ttriple116.1KN/ALahr and Eversole, 1962Uncertainty assigned by TRC = 0.4 K; TRC
Ttriple115.95KN/AClusius and Weigand, 1940Uncertainty assigned by TRC = 0.2 K; See property X for dP/dT for c-l equil.; TRC
Quantity Value Units Method Reference Comment
Ptriple0.7315barN/AZiegler, Yarbrough, et al., 1964Uncertainty assigned by TRC = 0.0006 bar; TRC
Quantity Value Units Method Reference Comment
Tc209.46KN/ATheeuwes and Bearman, 1970Uncertainty assigned by TRC = 0.02 K; PVT, VP measured up to 208 K. Tc from rect plot, equation. PRT, IPTS-48, PB with differential press. indicator, glc sensitive to 20 ppm impurity, none found.; TRC
Quantity Value Units Method Reference Comment
Pc55.2019barN/ATheeuwes and Bearman, 1970Uncertainty assigned by TRC = 0.0551 bar; from Vapor pressure equation; TRC
Quantity Value Units Method Reference Comment
ρc11.0mol/lN/ATheeuwes and Bearman, 1970Uncertainty assigned by TRC = 0.109 mol/l; TRC

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
126.68 to 208.4.2064539.0048.855Theeuwes and Bearman, 1970, 2Coefficents calculated by NIST from author's data.

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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.

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Ziegler, Yarbrough, et al., 1964
Ziegler, W.T.; Yarbrough, D.W.; Mullins, J.C., Calculation of the Vapor Pressure and Heats of Vaporization and Sublimation of Liquids and Solids below One Atmosphere Pressure. VI. Krypton, Ga. Inst. Technol., Eng. Exp. Stn., Proj. A-764, Tech. Rep. No. 1, 1964. [all data]

Lahr and Eversole, 1962
Lahr, P.H.; Eversole, W.G., Compression Isotherms of Argon, Krypton, and Xenon Through the Freezing Zone, J. Chem. Eng. Data, 1962, 7, 42-47. [all data]

Clusius and Weigand, 1940
Clusius, K.; Weigand, K., Melting Curves of the Gases A, Kr, Xe, CH4, CH3D, CD4, C2H4, C2H6, COS, and PH3 to 200 Atmospheres Pressure. The Chane of Volume on Melting, Z. Phys. Chem., Abt. B, 1940, 46, 1-37. [all data]

Theeuwes and Bearman, 1970
Theeuwes, F.; Bearman, R.J., The p,V,T behaviour of dense fluids III. The vapor pressure and orthobaric densities of krypton, J. Chem. Thermodyn., 1970, 2, 179-85. [all data]

Theeuwes and Bearman, 1970, 2
Theeuwes, F.; Bearman, R.J., The p,V,T Behavior of Dense Fluids. III. The Vapor Pressure and Orthobaric Density of Krypton, J. Chem. Thermodyn., 1970, 2, 2, 179-185, https://doi.org/10.1016/0021-9614(70)90081-9 . [all data]


Notes

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