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Ethane, 1,1,1-trifluoro-

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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, Kenneth Kroenlein director
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil226.KN/APCR Inc., 1990BS
Tboil226.45KN/AHenne and Renoll, 1936Uncertainty assigned by TRC = 0.1 K; TRC
Quantity Value Units Method Reference Comment
Ttriple161.82KN/ARussell, Golding, et al., 1944Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Tc345.860KN/AFujiwara, Nakamura, et al., 1998Uncertainty assigned by TRC = 0.05 K; For ITS-90 scale. Includes review of and comparison with previous literature; TRC
Tc345.860KN/AAoyama, Kishizawa, et al., 1996Uncertainty assigned by TRC = 0.02 K; For ITS-90, at temperture corres. to DC, includes review of and comparison with previous literture; TRC
Tc345.97KN/AFukushima, 1993Uncertainty assigned by TRC = 0.2 K; TRC
Tc346.25KN/AMears, Stahl, et al., 1955Uncertainty assigned by TRC = 0.7 K; by sealed tube method; TRC
Quantity Value Units Method Reference Comment
Pc37.639barN/AFujiwara, Nakamura, et al., 1998Uncertainty assigned by TRC = 0.05 bar; includes review of and comparison with previous literature; TRC
Pc34.116barN/AZhang, Sato, et al., 1995Uncertainty assigned by TRC = 0.05 bar; by extrapolation of vapor pressure to Tc from previous publ.; TRC
Pc37.69barN/AFukushima, 1993Uncertainty assigned by TRC = 0.05 bar; TRC
Pc37.5763barN/AMears, Stahl, et al., 1955Uncertainty assigned by TRC = 1.0342 bar; from vapor pressure equation at Tc; TRC
Quantity Value Units Method Reference Comment
rhoc5.16mol/lN/AFujiwara, Nakamura, et al., 1998Uncertainty assigned by TRC = 0.04 mol/l; includes review of and comparison with previous literature; TRC
rhoc5.16mol/lN/AAoyama, Kishizawa, et al., 1996Uncertainty assigned by TRC = 0.02 mol/l; at critical opalesence, includes review of and comparison with previous literature; TRC
rhoc5.10mol/lN/AFukushima, 1993Uncertainty assigned by TRC = 0.04 mol/l; TRC
rhoc5.16mol/lN/AMears, Stahl, et al., 1955Uncertainty assigned by TRC = 0.18 mol/l; rectilinear diameters; TRC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
19.175224.40N/ARussell, Golding, et al., 1944, 2P - 94.54 kPa; DH
18.1240.EBWeber and Defibaugh, 1996Based on data from 236. - 280. K.; AC
17.5250.EBWeber and Defibaugh, 1996Based on data from 236. - 280. K.; AC
16.7260.EBWeber and Defibaugh, 1996Based on data from 236. - 280. K.; AC
15.9270.EBWeber and Defibaugh, 1996Based on data from 236. - 280. K.; AC
18.9233.BGMears, Stahl, et al., 1955, 2AC
16.4273.BGMears, Stahl, et al., 1955, 2AC
13.8303.BGMears, Stahl, et al., 1955, 2AC
8.7333.BGMears, Stahl, et al., 1955, 2AC
20.5211.N/ARussell, Golding, et al., 1944, 2Based on data from 174. - 226. K.; AC
19.2 ± 0.1224.CRussell, Golding, et al., 1944, 2AC

Entropy of vaporization

DeltavapS (J/mol*K) Temperature (K) Reference Comment
85.45224.40Russell, Golding, et al., 1944, 2P; DH

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
173.60 - 225.784.02423786.645-30.093Russell, Golding, et al., 1944, 2Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
6.19161.9Acree, 1991AC

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.297156.35crystaline, IIcrystaline, IRussell, Golding, et al., 1944, 2DH
6.192161.82crystaline, IliquidRussell, Golding, et al., 1944, 2DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
1.90156.35crystaline, IIcrystaline, IRussell, Golding, et al., 1944, 2DH
38.26161.82crystaline, IliquidRussell, Golding, et al., 1944, 2DH

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.

PCR Inc., 1990
PCR Inc., Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]

Henne and Renoll, 1936
Henne, A.L.; Renoll, M.W., J. Am. Chem. Soc., 1936, 58, 889. [all data]

Russell, Golding, et al., 1944
Russell, H.K.; Golding, D.R.; Yost, D.M., The heat capacity, heat of transition, fusion & vaporization, Vapor press. and entropy of 1,1,1-trifluoroethane, J. Am. Chem. Soc., 1944, 66, 16. [all data]

Fujiwara, Nakamura, et al., 1998
Fujiwara, K.; Nakamura, S.; Noguchi, M., Critical Parameters and Vapor Pressure Measurements for 1,1,1-Trifluoroethane (R-143a), J. Chem. Eng. Data, 1998, 43, 55-9. [all data]

Aoyama, Kishizawa, et al., 1996
Aoyama, H.; Kishizawa, G.; Sato, H.; Watanabe, K., Vapor-Liquid Coexistence Curves in the Critical Region and the Critical Temperatures and Densities of 1,1,1,2-Tetrafluoroethane (R-134a), 1,1,1- Trifluoroethane (R-143a), and 1,1,1,2,3,3- Hexafluorop, J. Chem. Eng. Data, 1996, 41, 1046-1051. [all data]

Fukushima, 1993
Fukushima, M., Measurements of vapor pressure , vapor-liquid coexistence curve and critical parameters of HFC-143a, Nippon Reito Kyokai Ronbunshu, 1993, 10, 87-93. [all data]

Mears, Stahl, et al., 1955
Mears, W.H.; Stahl, R.F.; Orfeo, S.R.; Shair, R.C.; Kells, L.F.; Thompson, W.; McCann, H., Thermodynamic Properties of Halogenated Ethanes and Ethylenes, Ind. Eng. Chem., 1955, 47, 1449. [all data]

Zhang, Sato, et al., 1995
Zhang, H.-L.; Sato, H.; Watanabe, K., Vapor Pressures, Gas-Phase PVT Properties, and Second Virial Coefficients for 1,1,1-Trifluoroethane, J. Chem. Eng. Data, 1995, 40, 887-90. [all data]

Russell, Golding, et al., 1944, 2
Russell, H., Jr.; Golding, D.R.V.; Yost, D.M., The heat capacity, heats of transition, fusion and vaporization, vapor pressure and entropy of 1,1,1-trifluoroethane, J. Am. Chem. Soc., 1944, 66, 16-20. [all data]

Weber and Defibaugh, 1996
Weber, L.A.; Defibaugh, D.R., Vapor Pressures and PVT Properties of the Gas Phase of 1,1,1-Trifluoroethane, J. Chem. Eng. Data, 1996, 41, 6, 1477-1480, https://doi.org/10.1021/je9602071 . [all data]

Mears, Stahl, et al., 1955, 2
Mears, Whitney H.; Stahl, Richard F.; Orfeo, S. Robert; Shair, Robert C.; Kells, Lyman F.; Thompson, Walter; McCann, Harold, Thermodynamic Properties of Halogenated Ethanes and Ethylenes, Ind. Eng. Chem., 1955, 47, 7, 1449-1454, https://doi.org/10.1021/ie50547a052 . [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]


Notes

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