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Dichlorodifluoromethane

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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil243. ± 2.KAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus115.2KN/AStreng, 1971Uncertainty assigned by TRC = 0.3 K; TRC
Tfus115.37KN/AAnonymous, 1968TRC
Quantity Value Units Method Reference Comment
Ttriple116.100KN/ABlanke and Weiss, 1991Uncertainty assigned by TRC = 0.01 K; on ITS-90; TRC
Ttriple115.15KN/AKrauss and Stephan, 1989Uncertainty assigned by TRC = 0.1 K; TRC
Ttriple390.35KN/AAltunin, Geller, et al., 1987Uncertainty assigned by TRC = 0.05 K; TRC
Quantity Value Units Method Reference Comment
Ptriple0.00010barN/ABlanke and Weiss, 1991Uncertainty assigned by TRC = 0.00006 bar; TRC
Quantity Value Units Method Reference Comment
Tc370. ± 60.KAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Pc41.31barN/AKrauss and Stephan, 1989Uncertainty assigned by TRC = 0.05 bar; TRC
Pc41.19barN/AAltunin, Geller, et al., 1987Uncertainty assigned by TRC = 0.20 bar; TRC
Pc41.29barN/AHigashi, Okazaki, et al., 1984Uncertainty assigned by TRC = 0.15 bar; TRC
Pc41.1615barN/AAnonymous, 1968TRC
Pc39.1115barN/AMichels, Wassenaar, et al., 1966Uncertainty assigned by TRC = 0.0607 bar; TRC
Quantity Value Units Method Reference Comment
rhoc4.789mol/lN/AAltunin, Geller, et al., 1987Uncertainty assigned by TRC = 0.004 mol/l; TRC
rhoc4.70mol/lN/AOkada, Uematsu, et al., 1986Uncertainty assigned by TRC = 0.0469 mol/l; Density measured with magnetic densimeter. Tc, Dc selected from literature to correlate density measurements. R12; TRC
rhoc4.70mol/lN/AHigashi, Okazaki, et al., 1984Uncertainty assigned by TRC = 0.04 mol/l; TRC
rhoc5.54mol/lN/AMichels, Wassenaar, et al., 1966Uncertainty assigned by TRC = 0.07 mol/l; TRC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
20.0297.AStephenson and Malanowski, 1987Based on data from 282. - 345. K.; AC
21.4229.AStephenson and Malanowski, 1987Based on data from 173. - 244. K.; AC
21.6225.AStephenson and Malanowski, 1987Based on data from 173. - 240. K.; AC
20.4270.AStephenson and Malanowski, 1987Based on data from 236. - 285. K.; AC
20.5356.AStephenson and Malanowski, 1987Based on data from 341. - 385. K.; AC
22.9187.N/AKudchadker, Kudchadker, et al., 1979Based on data from 172. - 279. K.; AC
21.5228.N/AStull, 1947Based on data from 154. - 243. K.; AC
20.4243.N/ABuffington and Fleischer, 1931AC

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
154.7 - 243.43.81109782.072-37.773Stull, 1947Coefficents 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

Go To: Top, Phase change data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Streng, 1971
Streng, A.G., Miscibility and Compatibility of Some Liquid and Solidified Gases at Low Temperature, J. Chem. Eng. Data, 1971, 16, 357. [all data]

Anonymous, 1968
Anonymous, X., Chemicals and Plastics Physical Properties, 1968, Union Carbide Corp., product bulletin, 1968. [all data]

Blanke and Weiss, 1991
Blanke, W.; Weiss, R., Thermodynamic properties of refrigerants. Part I: the triple points of the refrigerants R11, R12, R22, R142b, and 152a, PTB-Mitt., 1991, 101, 337-9. [all data]

Krauss and Stephan, 1989
Krauss, R.; Stephan, K., Thermal Conductivity of Refrigerants in a Wide Range of Temperature and Pressure, J. Phys. Chem. Ref. Data, 1989, 18, 43. [all data]

Altunin, Geller, et al., 1987
Altunin, V.V.; Geller, V.Z.; Kremenvskaya, E.A.; Perel'shtein, I.I.; Petrov, E.K., Thermophysical Properties of Freons, Methane Ser. Part 2, Vol. 9, NSRDS-USSR, Selover, T. B., Ed., Hemisphere, New York, 1987. [all data]

Higashi, Okazaki, et al., 1984
Higashi, Y.; Okazaki, S.; Takaishi, Y.; Uematsu, M.; Watanabe, K., Measurements of the Vapor-Liquid Coexistence Curve for the Binary R12 + R22 System in the Critical Region, J. Chem. Eng. Data, 1984, 29, 31-6. [all data]

Michels, Wassenaar, et al., 1966
Michels, A.; Wassenaar, T.; Wolkers, G.J.; Prins, Chr.; van de Klundert, L., P-v-t data and thermodynamical properties of freon-12 (ccl(2)f(2)) and freon-13 (cclf(3)) fluorocarbons at temperatures between 0 and 150c and at pressures up to 400 atm, J. Chem. Eng. Data, 1966, 11, 449. [all data]

Okada, Uematsu, et al., 1986
Okada, M.; Uematsu, M.; Watanabe, K., Orthobaric liquid densities of trichloro-fluoromethane, dichlorodi-fluoromethane, chlorodifluoromethane, 1,1,2-trichlorotrifluoroethane, 1,2-dichlorotetrafluoroethane, and of the azeotropic mixtur, J. Chem. Thermodyn., 1986, 18, 527. [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]

Kudchadker, Kudchadker, et al., 1979
Kudchadker, A.P.; Kudchadker, S.A.; Shukla, R.P.; Patnaik, P.R., Vapor pressures and boiling points of selected halomethanes, J. Phys. Chem. Ref. Data, 1979, 8, 2, 499, https://doi.org/10.1063/1.555600 . [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]

Buffington and Fleischer, 1931
Buffington, R.M.; Fleischer, J., Thermodynamic properties of dichlorodifluoromethane, a new refrigerant. IV. Specific heat of liquid and vapor and latent heat of vaporization, Ind. Eng. Chem., 1931, 23, 1290-1292. [all data]


Notes

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