Ethane, 1,1-difluoro-
- Formula: C2H4F2
- Molecular weight: 66.0500
- IUPAC Standard InChIKey: NPNPZTNLOVBDOC-UHFFFAOYSA-N
- CAS Registry Number: 75-37-6
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Ethylidene fluoride; Algofrene Type 67; Freon 152a; FC 152a; Genetron 152a; R 152a; 1,1-Difluoroethane; CH3CHF2; Ethylidene difluoride; GENETRON 100; Propellant 152a; Halocarbon 152A; UN 1030; Dymel 152; Dymel 152A; HFC 152a
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Critical density
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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: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ρc (mol/l) | Reference | Comment |
---|---|---|
5.5838 | Holcomb, Niesen, et al., 1993 | Uncertainty assigned by TRC = 0.01 mol/l; TRC |
5.57 | Tamatsu, Sato, et al., 1992 | Uncertainty assigned by TRC = 0.02 mol/l; TRC |
5.57 | Wang, Liu, et al., 1992 | Uncertainty assigned by TRC = 0.03 mol/l; TRC |
5.59 | Chae, Schmidt, et al., 1990 | Uncertainty assigned by TRC = 0.1 mol/l; derived from obs L and G refractive index; TRC |
5.57 | Higashi, Ashizawa, et al., 1987 | Uncertainty assigned by TRC = 0.03 mol/l; TRC |
5.53 | Mears, Stahl, et al., 1955 | Uncertainty assigned by TRC = 0.23 mol/l; rectilinear diameters; TRC |
References
Go To: Top, Critical density, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Holcomb, Niesen, et al., 1993
Holcomb, C.D.; Niesen, V.G.; Van Poolen, L.J.; Outcalt, S.L.,
Coexisting densities , vapor pressures and critical densities of refrigerants R-32 and R-152a, at 300-385 K,
Fluid Phase Equilib., 1993, 91, 145-57. [all data]
Tamatsu, Sato, et al., 1992
Tamatsu, T.; Sato, T.; Sato, H.; Watanabe, K.,
An experimental study of the thermodynamic properties of 1,1-difluoroethane,
Int. J. Thermophys., 1992, 13, 985-97. [all data]
Wang, Liu, et al., 1992
Wang, J.; Liu, Z.G.; Tan, L.C.; Yin, J.M.,
Measurements of the Vapor-Liquid Coexistence Curve in the Critical Region for Refrigerant Mixture R152a/R22,
Fluid Phase Equilib., 1992, 80, 203-11. [all data]
Chae, Schmidt, et al., 1990
Chae, H.B.; Schmidt, J.W.; Moldover, M.R.,
Alternative refrigerants R123a, R134, R141b, R142b, and R152a: critical temperature, refractive index, surface tension, and estimates of liquid, vapor, and critical densities,
J. Phys. Chem., 1990, 94, 8840-5. [all data]
Higashi, Ashizawa, et al., 1987
Higashi, Y.; Ashizawa, M.; Kabata, Y.; Majima, T.; Uematsu, M.; Watanabe, K.,
Measurements of vapor pressure, vapor-liquid coexistence curve and critical parameters of Refrigerant 152a,
JSME Int. J., 1987, 30, 1106-12. [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]
Notes
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- Symbols used in this document:
ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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