Chemical Properties of Methane, difluoro- (CAS 75-10-5)

InChI

InChI=1S/CH2F2/c2-1-3/h1H2

InChI Key

RWRIWBAIICGTTQ-UHFFFAOYSA-N

Formula

CH2F2

SMILES

FCF

Molecular Weight¹

52.02

CAS

75-10-5

Other Names

• CH2F2
• Carbon fluoride hydride
• Difluoromethane [R32]
• Freon 32
• Genetron 32
• HFC 32
• Methylene fluoride
• R 32
• R 32 (refrigerant)
• R-32
• difluoromethane
• methylene difluoride

• ω : Acentric Factor.
• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• Δ_cH°_gas : Standard gas enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_fusH : Enthalpy of fusion at a given temperature (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• ν : Kinematic viscosity (m²/s).
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• ρ_c : Critical density (kg/m³).
• ρ_g : Gas Density (kg/m³).
• ρ_l : Liquid Density (kg/m³).
• I_np : Non-polar retention indices.
• γ : Surface Tension (N/m).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• Z_c : Critical Compressibility.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Contents

1. Physical Properties
2. Temperature Dependent Properties
3. Datasets
4. Correlations
5. Similar Compounds
6. Mixtures
7. Sources

Physical Properties

Property	Value	Unit	Source
ω	0.2710		PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
PAff	620.50	kJ/mol	NIST
BasG	589.70	kJ/mol	NIST
ΔcH°gas	-583.08	kJ/mol	NIST
ΔfG°	-432.08	kJ/mol	Joback Calculated Property
ΔfH°gas	[-452.21; -451.04]	kJ/mol
ΔfH°gas	-451.04 ± 0.46	kJ/mol	Active Thermochemical Tables 1.112, gas-phase enthalpies of formation Compiled value
ΔfH°gas	-452.21 ± 0.92	kJ/mol	NIST
ΔfusH°	4.51	kJ/mol	Joback Calculated Property
IE	[12.70; 13.27]	eV
IE	12.71	eV	NIST
IE	12.70	eV	NIST
IE	12.72	eV	NIST
IE	13.27	eV	NIST
logPoct/wat	0.883		Crippen Calculated Property
McVol	28.490	ml/mol	McGowan Calculated Property
Pc	[5783.00; 5830.24]	kPa
Pc	5783.00	kPa	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 10 Compiled value
Pc	Outlier 5830.24	kPa	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Pc	5785.00 ± 3.00	kPa	NIST
Pc	5785.00 ± 4.00	kPa	NIST
Pc	5785.00 ± 9.00	kPa	NIST
Pc	5784.00 ± 2.50	kPa	NIST
ρc	[423.99; 434.92]	kg/m3
ρc	425.03 ± 4.16	kg/m3	NIST
ρc	434.92 ± 5.20	kg/m3	NIST
ρc	427.11 ± 5.20	kg/m3	NIST
ρc	423.99 ± 2.08	kg/m3	NIST
ρc	428.15 ± 5.20	kg/m3	NIST
ρc	428.50 ± 1.04	kg/m3	NIST
ρc	430.23 ± 5.20	kg/m3	NIST
Inp	[183.00; 230.00]
Inp	230.00		NIST
Inp	183.00		NIST
Inp	230.00		NIST
Tboil	[221.00; 221.60]	K
Tboil	221.40	K	NIST
Tboil	221.00 ± 2.00	K	NIST
Tboil	221.60 ± 0.30	K	NIST
Tboil	221.60 ± 1.00	K	NIST
Tc	[351.14; 351.55]	K
Tc	351.25	K	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 10 Compiled value
Tc	Outlier 351.55	K	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Tc	351.29 ± 0.02	K	NIST
Tc	351.14 ± 0.30	K	NIST
Tc	351.29 ± 0.03	K	NIST
Tc	351.26 ± 0.05	K	NIST
Tc	351.25 ± 0.03	K	NIST
Tc	351.26 ± 0.03	K	NIST
Tfus	137.15	K	Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Vc	[0.121; 0.122]	m3/kmol
Vc	0.122	m3/kmol	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 10 Compiled value
Vc	0.121	m3/kmol	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Zc	0.2420000		IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 10 Compiled value

Cheméo can also estimate Enthalpy of vaporization at standard conditions, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[106.65; 164.39]	J/mol×K	[310.00; 340.00]
Cp,liquid	106.65	J/mol×K	310.00	Measurements of the Isobaric Specific Heat Capacity for 1,1,1-Trifluoroethane (R143a), Pentafluoroethane (R125), and Difluoromethane (R32) in the Liquid Phase
Cp,liquid	109.77	J/mol×K	315.00	Measurements of the Isobaric Specific Heat Capacity for 1,1,1-Trifluoroethane (R143a), Pentafluoroethane (R125), and Difluoromethane (R32) in the Liquid Phase
Cp,liquid	113.41	J/mol×K	320.00	Measurements of the Isobaric Specific Heat Capacity for 1,1,1-Trifluoroethane (R143a), Pentafluoroethane (R125), and Difluoromethane (R32) in the Liquid Phase
Cp,liquid	119.65	J/mol×K	325.00	Measurements of the Isobaric Specific Heat Capacity for 1,1,1-Trifluoroethane (R143a), Pentafluoroethane (R125), and Difluoromethane (R32) in the Liquid Phase
Cp,liquid	125.90	J/mol×K	330.00	Measurements of the Isobaric Specific Heat Capacity for 1,1,1-Trifluoroethane (R143a), Pentafluoroethane (R125), and Difluoromethane (R32) in the Liquid Phase
Cp,liquid	138.90	J/mol×K	335.00	Measurements of the Isobaric Specific Heat Capacity for 1,1,1-Trifluoroethane (R143a), Pentafluoroethane (R125), and Difluoromethane (R32) in the Liquid Phase
Cp,liquid	164.39	J/mol×K	340.00	Measurements of the Isobaric Specific Heat Capacity for 1,1,1-Trifluoroethane (R143a), Pentafluoroethane (R125), and Difluoromethane (R32) in the Liquid Phase
ΔfusH	[4.36; 4.40]	kJ/mol	[136.40; 136.40]
ΔfusH	4.36	kJ/mol	136.40	NIST
ΔfusH	4.40	kJ/mol	136.40	NIST
ΔvapH	[19.90; 21.20]	kJ/mol	[197.00; 333.50]
ΔvapH	20.60	kJ/mol	197.00	NIST
ΔvapH	21.20	kJ/mol	206.00	NIST
ΔvapH	21.20	kJ/mol	206.50	NIST
ΔvapH	20.60	kJ/mol	216.50	NIST
ΔvapH	20.30	kJ/mol	224.50	NIST
ΔvapH	19.90	kJ/mol	288.50	NIST
ΔvapH	20.30	kJ/mol	333.50	NIST
ν	[7.5000000e-08; 0.0000001]	m2/s	[293.15; 348.18]
ν	0.0000001	m2/s	293.15	Surface Tension and Liquid Viscosity of R32+R1234yf and R32 + R1234ze
ν	0.0000001	m2/s	303.15	Surface Tension and Liquid Viscosity of R32+R1234yf and R32 + R1234ze
ν	0.0000001	m2/s	313.07	Surface Tension and Liquid Viscosity of R32+R1234yf and R32 + R1234ze
ν	9.9800000e-08	m2/s	323.15	Surface Tension and Liquid Viscosity of R32+R1234yf and R32 + R1234ze
ν	9.3000000e-08	m2/s	333.14	Surface Tension and Liquid Viscosity of R32+R1234yf and R32 + R1234ze
ν	7.9500000e-08	m2/s	343.16	Surface Tension and Liquid Viscosity of R32+R1234yf and R32 + R1234ze
ν	7.5000000e-08	m2/s	348.18	Surface Tension and Liquid Viscosity of R32+R1234yf and R32 + R1234ze
Pvap	[488.10; 5392.00]	kPa	[258.15; 347.89]
Pvap	488.10	kPa	258.15	Isothermal VLE Measurements for Difluoromethane + Dimethylether and an Evaluation of Hydrogen Bonding
Pvap	488.10	kPa	258.15	Vapor-liquid equilibrium of difluoromethane +1,1,1,2-tetrafluoroethane systems over a temperature range from 258.15 to 343.15K
Pvap	580.20	kPa	263.15	Vapor-Liquid Equilibrium for the Difluoromethane (R32) + n-Butane (R600) System
Pvap	624.10	kPa	265.15	Vapor-Liquid Equilibrium Data for the Binary Mixture Difluoromethane (HFC-32) + Pentafluoroethane (HFC-125) of an Alternative Refrigerant
Pvap	690.60	kPa	268.15	Vapor-liquid equilibrium of difluoromethane +1,1,1,2-tetrafluoroethane systems over a temperature range from 258.15 to 343.15K
Pvap	695.40	kPa	268.15	Vapor-Liquid Equilibria for the Binary System Difluoromethane (HFC-32) + Propane (HC-290) at Seven Temperatures [(268.15, 278.15, 283.15, 288.15, 298.15, 308.15, and 318.15) K]
Pvap	816.80	kPa	273.15	Measurement of Vapor-Liquid Equilibria for the Binary Mixture Difluoromethane (HFC-32) + Propylene (R-1270)
Pvap	814.00	kPa	273.15	Isothermal VLE Measurements for Difluoromethane + Dimethylether and an Evaluation of Hydrogen Bonding
Pvap	866.50	kPa	275.15	Vapor-liquid equilibrium of difluoromethane +1,1,1,2-tetrafluoroethane systems over a temperature range from 258.15 to 343.15K
Pvap	866.50	kPa	275.15	Vapor-Liquid Equilibrium Data for the Binary Mixture Difluoromethane (HFC-32) + Pentafluoroethane (HFC-125) of an Alternative Refrigerant
Pvap	952.00	kPa	278.15	Vapor-Liquid Equilibria for the Binary System Difluoromethane (HFC-32) + Propane (HC-290) at Seven Temperatures [(268.15, 278.15, 283.15, 288.15, 298.15, 308.15, and 318.15) K]
Pvap	949.60	kPa	278.15	Vapor-Liquid Equilibrium for the Difluoromethane (R32) + n-Butane (R600) System
Pvap	1022.00	kPa	280.59	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	1109.00	kPa	283.05	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	1106.20	kPa	283.15	Vapor-Liquid Equilibria for the Binary and Ternary Systems of Difluoromethane (R32), 1,1-Difluoroethane (R152a), and 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)
Pvap	1111.80	kPa	283.15	Measurement of Vapor-Liquid Equilibria for the Binary Mixture Difluoromethane (HFC-32) + Propylene (R-1270)
Pvap	1102.20	kPa	283.15	Vapor-Liquid Equilibria for the Binary System Difluoromethane (HFC-32) + Propane (HC-290) at Seven Temperatures [(268.15, 278.15, 283.15, 288.15, 298.15, 308.15, and 318.15) K]
Pvap	1107.00	kPa	283.15	Vapor-Liquid Equilibrium Data for the Binary Mixture Difluoromethane (HFC-32) + Pentafluoroethane (HFC-125) of an Alternative Refrigerant
Pvap	1107.30	kPa	283.15	Vapor liquid equilibrium measurements for difluoromethane (R32) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) and fluoroethane (R161) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf)
Pvap	1107.00	kPa	283.15	Vapor-liquid equilibrium of difluoromethane +1,1,1,2-tetrafluoroethane systems over a temperature range from 258.15 to 343.15K
Pvap	1107.30	kPa	283.15	Isothermal vapor liquid equilibrium measurements for difluoromethane (R32) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))
Pvap	1111.00	kPa	283.19	Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
Pvap	1195.00	kPa	285.52	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	1280.00	kPa	288.02	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	1281.20	kPa	288.15	Vapor-Liquid Equilibria for the Binary System Difluoromethane (HFC-32) + Propane (HC-290) at Seven Temperatures [(268.15, 278.15, 283.15, 288.15, 298.15, 308.15, and 318.15) K]
Pvap	1279.90	kPa	288.15	Vapor-Liquid Equilibria for the Binary and Ternary Systems of Difluoromethane (R32), 1,1-Difluoroethane (R152a), and 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)
Pvap	1280.60	kPa	288.15	Isothermal vapor liquid equilibrium measurements for difluoromethane (R32) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))
Pvap	1286.00	kPa	288.21	Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
Pvap	1364.00	kPa	290.46	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	1474.00	kPa	293.02	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	1474.00	kPa	293.15	Isothermal vapor liquid equilibrium measurements for difluoromethane (R32) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))
Pvap	1474.60	kPa	293.15	Isothermal VLE Measurements for Difluoromethane + Dimethylether and an Evaluation of Hydrogen Bonding
Pvap	1480.20	kPa	293.15	Measurement of Vapor-Liquid Equilibria for the Binary Mixture Difluoromethane (HFC-32) + Propylene (R-1270)
Pvap	1473.20	kPa	293.15	Experimental measurements and correlation of isothermal vapor-liquid equilibria for HFC-32 + HFO-1234ze (E) and HFC-134a + HFO-1234ze (E) binary systems
Pvap	1473.20	kPa	293.15	Vapor-Liquid Equilibrium for the Difluoromethane (R32) + n-Butane (R600) System
Pvap	1475.00	kPa	293.15	Vapor-Liquid Equilibrium Data for the Binary Mixture Difluoromethane (HFC-32) + Pentafluoroethane (HFC-125) of an Alternative Refrigerant
Pvap	1475.00	kPa	293.15	Vapor-liquid equilibrium of difluoromethane +1,1,1,2-tetrafluoroethane systems over a temperature range from 258.15 to 343.15K
Pvap	1474.00	kPa	293.15	Vapor liquid equilibrium measurements for difluoromethane (R32) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) and fluoroethane (R161) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf)
Pvap	1473.70	kPa	293.16	Vapor-Liquid Equilibria for the Binary and Ternary Systems of Difluoromethane (R32), 1,1-Difluoroethane (R152a), and 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)
Pvap	1481.00	kPa	293.24	Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
Pvap	1578.00	kPa	295.49	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	1684.00	kPa	298.01	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	1685.60	kPa	298.15	Vapor-Liquid Equilibria for the Binary System Difluoromethane (HFC-32) + Propane (HC-290) at Seven Temperatures [(268.15, 278.15, 283.15, 288.15, 298.15, 308.15, and 318.15) K]
Pvap	1688.40	kPa	298.16	Vapor-Liquid Equilibria for the Binary and Ternary Systems of Difluoromethane (R32), 1,1-Difluoroethane (R152a), and 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)
Pvap	1689.50	kPa	298.17	Isothermal vapor liquid equilibrium measurements for difluoromethane (R32) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))
Pvap	1697.00	kPa	298.26	Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
Pvap	1793.00	kPa	300.48	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	1918.00	kPa	302.94	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	1925.80	kPa	303.14	Isothermal vapor liquid equilibrium measurements for difluoromethane (R32) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))
Pvap	1925.30	kPa	303.15	Vapor-Liquid Equilibria for the Binary and Ternary Systems of Difluoromethane (R32), 1,1-Difluoroethane (R152a), and 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)
Pvap	1930.40	kPa	303.15	Measurement of Vapor-Liquid Equilibria for the Binary Mixture Difluoromethane (HFC-32) + Propylene (R-1270)
Pvap	1928.00	kPa	303.15	Vapor-liquid equilibrium of difluoromethane +1,1,1,2-tetrafluoroethane systems over a temperature range from 258.15 to 343.15K
Pvap	1926.70	kPa	303.15	Experimental measurements and correlation of isothermal vapor-liquid equilibria for HFC-32 + HFO-1234ze (E) and HFC-134a + HFO-1234ze (E) binary systems
Pvap	1925.80	kPa	303.15	Vapor liquid equilibrium measurements for difluoromethane (R32) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) and fluoroethane (R161) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf)
Pvap	1925.00	kPa	303.15	Vapor-Liquid Equilibrium Data for the Binary Mixture Difluoromethane (HFC-32) + Pentafluoroethane (HFC-125) of an Alternative Refrigerant
Pvap	1935.00	kPa	303.27	Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
Pvap	2051.00	kPa	305.46	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	2179.00	kPa	307.91	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	2188.30	kPa	308.15	Vapor-Liquid Equilibria for the Binary and Ternary Systems of Difluoromethane (R32), 1,1-Difluoroethane (R152a), and 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)
Pvap	2188.20	kPa	308.15	Isothermal vapor liquid equilibrium measurements for difluoromethane (R32) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))
Pvap	2185.20	kPa	308.15	Vapor-Liquid Equilibria for the Binary System Difluoromethane (HFC-32) + Propane (HC-290) at Seven Temperatures [(268.15, 278.15, 283.15, 288.15, 298.15, 308.15, and 318.15) K]
Pvap	2197.00	kPa	308.28	Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
Pvap	2318.00	kPa	310.48	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	2459.00	kPa	312.90	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	2476.20	kPa	313.15	Isothermal vapor liquid equilibrium measurements for difluoromethane (R32) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))
Pvap	2478.00	kPa	313.15	Vapor-liquid equilibrium of difluoromethane +1,1,1,2-tetrafluoroethane systems over a temperature range from 258.15 to 343.15K
Pvap	2469.00	kPa	313.15	Vapor-Liquid Equilibria of the Difluoromethane + Dimethyl Ether and 1,1,1,2-Tetrafluoroethane + Dimethyl Ether Systems
Pvap	2476.30	kPa	313.15	Experimental measurements and correlation of isothermal vapor-liquid equilibria for HFC-32 + HFO-1234ze (E) and HFC-134a + HFO-1234ze (E) binary systems
Pvap	2476.00	kPa	313.15	Vapor-Liquid Equilibria of the Binary n-Butane (HC-600) + Difluoromethane (HFC-32), + Pentafluoroethane (HFC-125), + 1,1,1,2-Tetrafluoroethane (HFC-134a) Mixture Systems
Pvap	2475.90	kPa	313.15	Vapor-Liquid Equilibria for the Binary and Ternary Systems of Difluoromethane (R32), 1,1-Difluoroethane (R152a), and 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)
Pvap	2476.20	kPa	313.15	Vapor liquid equilibrium measurements for difluoromethane (R32) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) and fluoroethane (R161) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf)
Pvap	2478.00	kPa	313.15	Measurement of Vapor-Liquid Equilibria for the Binary Mixture Difluoromethane (HFC-32) + Propylene (R-1270)
Pvap	2485.00	kPa	313.30	Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
Pvap	2614.00	kPa	315.43	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	2772.00	kPa	317.89	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	2791.60	kPa	318.14	Isothermal vapor liquid equilibrium measurements for difluoromethane (R32) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))
Pvap	2794.80	kPa	318.15	Vapor-Liquid Equilibria for the Binary System Difluoromethane (HFC-32) + Propane (HC-290) at Seven Temperatures [(268.15, 278.15, 283.15, 288.15, 298.15, 308.15, and 318.15) K]
Pvap	2792.00	kPa	318.15	Vapor-Liquid Equilibria for the Binary and Ternary Systems of Difluoromethane (R32), 1,1-Difluoroethane (R152a), and 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)
Pvap	2801.00	kPa	318.28	Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
Pvap	2948.00	kPa	320.41	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	3120.00	kPa	322.92	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	3142.20	kPa	323.14	Experimental measurements and correlation of isothermal vapor-liquid equilibria for HFC-32 + HFO-1234ze (E) and HFC-134a + HFO-1234ze (E) binary systems
Pvap	3138.00	kPa	323.14	Isothermal vapor liquid equilibrium measurements for difluoromethane (R32) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))
Pvap	3137.60	kPa	323.15	Vapor-Liquid Equilibria for the Binary and Ternary Systems of Difluoromethane (R32), 1,1-Difluoroethane (R152a), and 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)
Pvap	3137.00	kPa	323.15	Vapor-Liquid Equilibria of the Binary n-Butane (HC-600) + Difluoromethane (HFC-32), + Pentafluoroethane (HFC-125), + 1,1,1,2-Tetrafluoroethane (HFC-134a) Mixture Systems
Pvap	3141.00	kPa	323.15	Vapor-liquid equilibrium of difluoromethane +1,1,1,2-tetrafluoroethane systems over a temperature range from 258.15 to 343.15K
Pvap	3138.00	kPa	323.15	Vapor liquid equilibrium measurements for difluoromethane (R32) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) and fluoroethane (R161) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf)
Pvap	3138.00	kPa	323.15	Vapor-Liquid Equilibria of the Difluoromethane + Dimethyl Ether and 1,1,1,2-Tetrafluoroethane + Dimethyl Ether Systems
Pvap	3147.00	kPa	323.30	Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
Pvap	3303.00	kPa	325.42	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	3498.00	kPa	327.90	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	3526.00	kPa	328.31	Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
Pvap	3694.00	kPa	330.35	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	3910.00	kPa	332.91	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	3933.00	kPa	333.15	Vapor-liquid equilibrium of difluoromethane +1,1,1,2-tetrafluoroethane systems over a temperature range from 258.15 to 343.15K
Pvap	3934.00	kPa	333.15	Vapor-Liquid Equilibria of the Difluoromethane + Dimethyl Ether and 1,1,1,2-Tetrafluoroethane + Dimethyl Ether Systems
Pvap	3933.00	kPa	333.15	Vapor-Liquid Equilibria of the Binary n-Butane (HC-600) + Difluoromethane (HFC-32), + Pentafluoroethane (HFC-125), + 1,1,1,2-Tetrafluoroethane (HFC-134a) Mixture Systems
Pvap	4138.00	kPa	335.40	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	4370.00	kPa	337.93	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	4602.00	kPa	340.43	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	4854.00	kPa	342.88	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	4884.00	kPa	343.15	Vapor-Liquid Equilibria of the Difluoromethane + Dimethyl Ether and 1,1,1,2-Tetrafluoroethane + Dimethyl Ether Systems
Pvap	4877.00	kPa	343.15	Vapor-liquid equilibrium of difluoromethane +1,1,1,2-tetrafluoroethane systems over a temperature range from 258.15 to 343.15K
Pvap	4892.00	kPa	343.26	Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
Pvap	5117.00	kPa	345.40	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
Pvap	5392.00	kPa	347.89	Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
γ	[0.00; 0.01]	N/m	[252.74; 332.00]
γ	0.01	N/m	252.74	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	252.74	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	257.00	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	257.00	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	260.46	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	260.46	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	265.04	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	265.04	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	268.75	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	268.75	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	273.28	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	273.28	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	276.85	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	276.85	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	281.50	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	281.50	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	285.79	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	285.79	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	294.05	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	294.05	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	297.58	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	297.58	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	301.42	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	301.42	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	305.30	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	305.30	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	309.50	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.01	N/m	309.50	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	315.58	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	315.58	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	319.38	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	319.38	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	319.84	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	319.84	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	323.29	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	323.29	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	327.23	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	327.23	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	332.00	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
γ	0.00	N/m	332.00	Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K

Datasets

1. Molar heat capacity at constant volume, J/K/mol (1)
2. Mass density, kg/m3 (2)
3. Mass density, kg/m3 (2)

Molar heat capacity at constant volume, J/K/mol

Fixed		Measured
Temperature, K - Liquid	Pressure, kPa - Liquid	Molar heat capacity at constant volume, J/K/mol - Liquid
268.15	8268.00	49.4742
268.15	8502.00	48.7979
269.15	9280.00	49.3182
269.15	9512.00	49.6823
270.15	10291.00	49.4742
270.15	10521.00	49.8384
271.15	11302.00	49.4222
271.15	11531.00	49.5263
272.15	12312.00	49.9425
272.15	12421.00	50.5667
272.15	12540.00	49.0581
273.15	13321.00	49.0581
273.15	13429.00	49.7864
273.15	13551.00	50.2546
274.15	14330.00	49.9425
274.15	14438.00	49.6303
274.15	14560.00	49.3702
275.15	15337.00	49.4742
275.15	15444.00	49.8384
275.15	15568.00	49.4742
276.15	16344.00	49.8904
276.15	16452.00	49.8384
276.15	16577.00	49.7344
277.15	17350.00	49.3182
277.15	17457.00	49.6303
277.15	17583.00	49.9945
278.15	18354.00	49.8904
278.15	18462.00	50.2546
278.15	18589.00	49.4742
279.15	19358.00	49.8904
279.15	19465.00	49.7864
279.15	19595.00	50.1505
280.15	20361.00	49.6303
280.15	20468.00	50.2026
280.15	20598.00	49.9945
281.15	21363.00	50.4627
281.15	21470.00	49.6303
281.15	21601.00	49.8904
282.15	22363.00	49.5783
282.15	22472.00	50.2546
282.15	22602.00	50.0465
283.15	23363.00	50.4107
283.15	23473.00	50.1505
283.15	23603.00	49.9425
284.15	24362.00	50.3066
284.15	24472.00	49.9425
284.15	24606.00	50.2546
285.15	25359.00	50.1505
285.15	25470.00	50.5147
285.15	25603.00	50.2546
286.15	26356.00	50.5147
286.15	26466.00	50.6188
286.15	26598.00	50.2026
287.15	27351.00	50.3586
287.15	27461.00	50.2026
287.15	27594.00	50.3586
288.15	28345.00	50.5667
288.15	28454.00	50.6188
288.15	28588.00	50.4107
289.15	5774.00	51.243
289.15	5835.00	49.7864
289.15	29338.00	50.4627
289.15	29446.00	50.7228
289.15	29581.00	51.087
290.15	6570.00	50.6188
290.15	6631.00	50.9309
291.15	7365.00	51.139
291.15	7428.00	51.191
292.15	8161.00	51.243
292.15	8224.00	51.139
293.15	8956.00	51.3991
293.15	9019.00	51.7112
294.15	9752.00	51.6592
294.15	9815.00	50.8268
295.15	10546.00	51.191
295.15	10610.00	51.5552
296.15	11341.00	51.191
296.15	11405.00	51.5032
297.15	12135.00	51.6072
297.15	12199.00	51.3471
298.15	12929.00	51.5032
298.15	12993.00	51.9193
299.15	13723.00	51.6592
299.15	13787.00	51.8153
300.15	14517.00	51.6592
300.15	14581.00	52.0754
301.15	15309.00	52.3355
301.15	15374.00	51.9193
302.15	16102.00	52.0754
302.15	16167.00	52.2315
303.15	16894.00	52.1274
303.15	16960.00	52.4916
304.15	17685.00	52.1274
304.15	17752.00	52.5436
305.15	18476.00	52.7517
305.15	18543.00	52.5956
306.15	19267.00	52.7517
306.15	19335.00	52.8037
307.15	20125.00	52.4916
308.15	20848.00	52.9078
308.15	20915.00	52.8037
309.15	21639.00	52.6997
309.15	21704.00	53.324
310.15	22429.00	52.8558
310.15	22492.00	53.1159
311.15	23217.00	53.1679
311.15	23281.00	53.6881
312.15	24005.00	53.6361
312.15	24068.00	53.7922
313.15	24793.00	53.5321
313.15	24855.00	53.7922
314.15	25579.00	53.7922
314.15	25641.00	53.428
315.15	26364.00	53.5841
315.15	26427.00	54.0003
316.15	27149.00	53.5321
316.15	27212.00	54.6766
317.15	27934.00	54.4165
317.15	27996.00	54.2084
318.15	28719.00	54.1043
318.15	28779.00	54.7806
Reference

Mass density, kg/m3

Fixed		Measured
Temperature, K - Gas	Pressure, kPa - Gas	Mass density, kg/m3 - Gas
254.08	382.25	10.3656
254.09	313.90	8.3508
254.09	214.16	5.5491
254.10	104.12	2.6275
263.88	571.82	15.4369
263.88	506.07	13.4247
263.88	401.96	10.3885
263.88	306.27	7.74
263.88	204.78	5.0609
263.88	107.72	2.6075
263.89	71.43	1.7159
273.74	824.10	22.3391
273.73	817.04	22.1108
273.74	771.81	20.6433
273.73	711.85	18.7582
273.74	614.63	15.8288
273.73	513.88	12.9426
273.74	416.77	10.2856
273.73	312.85	7.5636
273.74	224.38	5.3352
273.73	101.73	2.3681
283.54	1013.18	26.9253
283.54	1013.16	26.9235
283.55	911.64	23.6652
283.53	812.63	20.6499
283.52	710.61	17.6856
283.52	614.51	15.0118
283.54	502.33	12.0197
283.52	412.99	9.7269
283.53	312.42	7.2368
283.53	213.32	4.8632
283.53	101.75	2.2806
293.33	1397.32	37.8678
293.33	1265.09	33.2531
293.34	1161.47	29.864
293.34	1066.35	26.9025
293.34	968.81	23.9856
293.34	866.25	21.0499
293.34	760.28	18.1362
293.32	656.65	15.3945
293.32	546.17	12.5808
293.32	432.29	9.7863
293.37	323.39	7.2059
293.38	219.26	4.8156
293.32	107.46	2.3235
Reference

Fixed		Measured
Temperature, K - Gas	Pressure, kPa - Gas	Mass density, kg/m3 - Gas
313.15	201.80	4.12
313.15	201.90	4.121
313.15	490.80	10.342
313.15	791.00	17.277
313.15	996.60	22.355
313.15	1203.30	27.77
313.15	1396.50	33.159
313.15	1602.90	39.331
313.15	1801.80	45.76
313.15	1801.90	45.748
313.15	1998.10	52.687
313.15	2103.60	56.702
313.15	2201.50	60.637
313.15	2251.00	62.72
313.15	2298.10	64.762
313.15	2355.70	67.348
313.15	2355.80	67.343
313.15	2402.70	69.541
313.15	2403.00	69.545
313.15	2435.00	71.084
313.15	2435.10	71.095
313.15	2450.50	71.838
313.15	2450.60	71.855
313.15	2472.00	72.903
313.15	490.80	10.336
313.15	791.00	17.275
313.15	996.60	22.349
313.15	1203.30	27.759
313.15	1396.50	33.148
313.15	1602.90	39.322
313.15	1998.10	52.676
313.15	2103.60	56.692
313.15	2201.50	60.629
313.15	2251.00	62.711
313.15	2298.10	64.748
313.15	2472.00	72.918
323.15	207.90	4.101
323.15	499.20	10.125
323.15	801.10	16.793
323.15	801.20	16.794
323.15	998.30	21.387
323.15	1095.20	23.732
323.15	1200.30	26.337
323.15	1200.40	26.341
323.15	1397.40	31.424
323.15	1590.60	36.664
323.15	1797.20	42.644
323.15	2004.90	49.091
323.15	2200.60	55.637
323.15	2402.30	62.99
323.15	2596.10	70.738
323.15	2699.00	75.19
323.15	2699.10	75.207
323.15	2799.00	79.805
323.15	2802.90	80.005
323.15	2900.60	84.82
323.15	2901.20	84.882
323.15	2947.00	87.258
323.15	2960.30	87.971
323.15	3002.20	90.24
323.15	3002.30	90.261
323.15	3010.20	90.716
323.15	3041.10	92.478
323.15	3041.20	92.495
323.15	3074.60	94.445
323.15	3099.50	95.942
323.15	3125.50	97.558
323.15	3125.60	97.549
323.15	3134.20	98.084
323.15	207.90	4.103
323.15	499.20	10.143
323.15	998.30	21.393
323.15	1397.40	31.416
323.15	1590.60	36.67
323.15	1797.20	42.658
323.15	2004.90	49.105
323.15	2200.60	55.653
323.15	2402.30	62.978
323.15	2596.10	70.733
323.15	2799.00	79.816
323.15	2802.90	80.017
323.15	2900.60	84.839
323.15	2901.20	84.872
323.15	2947.00	87.244
323.15	2960.30	87.99
323.15	3010.20	90.73
323.15	3074.60	94.453
323.15	3099.50	95.952
323.15	499.20	10.143
323.15	499.20	10.132
Reference

Mass density, kg/m3

Fixed		Measured
Temperature, K - Fluid (supercritical or subcritical phases)	Pressure, kPa - Fluid (supercritical or subcritical phases)	Mass density, kg/m3 - Fluid (supercritical or subcritical phases)
313.16	3353.70	900.17
316.15	4967.10	899.97
319.15	6571.40	899.77
322.15	8162.40	899.57
328.16	11399.70	899.19
334.15	14753.40	898.82
337.15	16580.50	898.63
Reference

Fixed		Measured
Temperature, K - Liquid	Pressure, kPa - Liquid	Mass density, kg/m3 - Liquid
283.54	3000.00	1027.1
283.54	5000.00	1035.42
283.55	10000.00	1054.01
283.55	15000.00	1070.11
283.55	20000.00	1084.45
283.55	25000.00	1097.41
283.56	30000.00	1109.29
283.56	40000.00	1130.47
283.56	60000.00	1165.73
283.56	80000.00	1194.77
283.55	100000.00	1219.47
293.49	3000.00	989.19
293.49	5000.00	999.53
293.49	10000.00	1021.69
293.48	15000.00	1040.44
293.49	20000.00	1056.75
293.49	25000.00	1071.31
293.49	30000.00	1084.43
293.49	40000.00	1107.67
293.49	60000.00	1145.64
293.50	80000.00	1176.55
293.50	100000.00	1202.49
303.43	3000.00	946.84
303.43	5000.00	960.0
303.42	10000.00	987.14
303.42	15000.00	1009.19
303.43	20000.00	1027.86
303.43	25000.00	1044.2
303.44	30000.00	1058.82
303.43	40000.00	1084.3
303.44	60000.00	1125.22
303.45	80000.00	1157.85
303.44	100000.00	1185.37
313.35	3000.00	898.97
313.36	5000.00	916.76
313.35	10000.00	951.05
313.36	15000.00	977.36
313.36	20000.00	999.0
313.37	25000.00	1017.48
313.36	30000.00	1033.81
313.36	40000.00	1061.8
313.37	60000.00	1105.9
313.36	80000.00	1140.76
313.36	100000.00	1169.51
323.26	5000.00	864.36
323.25	10000.00	909.88
323.25	15000.00	941.66
323.25	20000.00	966.72
323.25	25000.00	987.67
323.25	30000.00	1005.85
323.25	40000.00	1036.43
323.25	60000.00	1083.93
323.25	80000.00	1120.89
323.25	100000.00	1151.14
333.14	10000.00	865.89
333.14	15000.00	905.11
333.15	20000.00	934.53
333.15	25000.00	958.47
333.15	30000.00	978.86
333.15	40000.00	1012.65
333.15	60000.00	1063.95
333.15	80000.00	1103.15
333.15	100000.00	1134.94
343.00	10000.00	815.42
342.99	15000.00	866.16
343.00	20000.00	901.33
343.00	25000.00	928.7
343.00	30000.00	951.59
343.00	40000.00	988.88
343.01	60000.00	1044.01
343.01	80000.00	1085.29
343.01	100000.00	1118.63
Reference

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[42.83; 88.91]	J/mol×K	[298.00; 1200.00]	NIST
Equation			Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K
Coefficient A			-6.09868e+00
Coefficient B			1.79220e+02
Coefficient C			-1.22368e+02
Coefficient D			3.23021e+01
Coefficient E			4.91361e-01
Reference			Chase, 1998
Comment			F=-454.1439, G=193.7979, H=-450.6586; Data last reviewed in December, 1969
Temperature range, min.			298.00
Temperature range, max.			1200.00
Cp,gas	42.83	J/mol×K	298.00	Calculated Property
Cp,gas	51.00	J/mol×K	398.22	Calculated Property
Cp,gas	58.81	J/mol×K	498.44	Calculated Property
Cp,gas	65.64	J/mol×K	598.67	Calculated Property
Cp,gas	71.42	J/mol×K	698.89	Calculated Property
Cp,gas	76.23	J/mol×K	799.11	Calculated Property
Cp,gas	80.21	J/mol×K	899.33	Calculated Property
Cp,gas	83.53	J/mol×K	999.56	Calculated Property
Cp,gas	86.37	J/mol×K	1099.78	Calculated Property
Cp,gas	88.91	J/mol×K	1200.00	Calculated Property
Cp,gas	[88.73; 107.07]	J/mol×K	[1200.00; 6000.00]	NIST
Equation			Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K
Coefficient A			9.46756e+01
Coefficient B			6.98347e+00
Coefficient C			-1.34190e+00
Coefficient D			8.93870e-02
Coefficient E			-1.80706e+01
Reference			Chase, 1998
Comment			F=-519.5482, G=307.0742, H=-450.6586; Data last reviewed in December, 1969
Temperature range, min.			1200.00
Temperature range, max.			6000.00
Cp,gas	88.73	J/mol×K	1200.00	Calculated Property
Cp,gas	97.20	J/mol×K	1733.33	Calculated Property
Cp,gas	101.13	J/mol×K	2266.67	Calculated Property
Cp,gas	103.37	J/mol×K	2800.00	Calculated Property
Cp,gas	104.73	J/mol×K	3333.33	Calculated Property
Cp,gas	105.57	J/mol×K	3866.67	Calculated Property
Cp,gas	106.10	J/mol×K	4400.00	Calculated Property
Cp,gas	106.46	J/mol×K	4933.33	Calculated Property
Cp,gas	106.75	J/mol×K	5466.67	Calculated Property
Cp,gas	107.07	J/mol×K	6000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.05; 5893.28]	kPa	[137.00; 351.60]	KDB Vapor Pressure Data
Equation			ln(Y) = A + B/T + C·ln(T) + D·T² + E/T² Y is Pvap in kPa, T in K
Coefficient A			7.88243e+01
Coefficient B			-4.29952e+03
Coefficient C			-1.03475e+01
Coefficient D			2.22293e-05
Coefficient E			0.00000e+00
Temperature range, min.			137.00
Temperature range, max.			351.60
Pvap	0.05	kPa	137.00	Calculated Property
Pvap	1.10	kPa	160.84	Calculated Property
Pvap	10.00	kPa	184.69	Calculated Property
Pvap	50.21	kPa	208.53	Calculated Property
Pvap	171.62	kPa	232.38	Calculated Property
Pvap	452.75	kPa	256.22	Calculated Property
Pvap	999.76	kPa	280.07	Calculated Property
Pvap	1950.92	kPa	303.91	Calculated Property
Pvap	3493.00	kPa	327.76	Calculated Property
Pvap	5893.28	kPa	351.60	Calculated Property
Pvap	[16.35; 253.10]	kPa	[191.19; 241.33]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.44193e+01
Coefficient B			-1.89063e+03
Coefficient C			-2.85540e+01
Reference			Malbrunot, Meunier, et al., 1968
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			191.19
Temperature range, max.			241.33
Pvap	16.35	kPa	191.19	Calculated Property
Pvap	24.03	kPa	196.76	Calculated Property
Pvap	34.46	kPa	202.33	Calculated Property
Pvap	48.31	kPa	207.90	Calculated Property
Pvap	66.37	kPa	213.47	Calculated Property
Pvap	89.51	kPa	219.05	Calculated Property
Pvap	118.67	kPa	224.62	Calculated Property
Pvap	154.90	kPa	230.19	Calculated Property
Pvap	199.31	kPa	235.76	Calculated Property
Pvap	253.10	kPa	241.33	Calculated Property

Similar Compounds

Find more compounds similar to Methane, difluoro-.

Mixtures

• Methane, difluoro- + Norflurane
• Methane, difluoro- + Nitrous oxide
• Methane, difluoro- + Isobutane
• Propane + Methane, difluoro- + Isobutane
• Methane, difluoro- + Formamide, N,N-dimethyl-
• Methane, difluoro- + Dimethyl ether
• Methane, difluoro- + Methyl Alcohol
• Methane, difluoro- + Ethanol
• Methane, difluoro- + 1-Propanol
• Methane, difluoro- + 1-Butanol
• Propane + Methane, difluoro- + Ethane, pentafluoro-
• Methane, difluoro- + Ethane, fluoro-
• Benzene + Methane, difluoro-
• Methane, difluoro- + Toluene
• Methane, difluoro- + Benzene, 1,3-dimethyl-
• Methane, difluoro- + Mesitylene
• Methane, difluoro- + Ethane, fluoro- + Ethane, pentafluoro-
• Methane, difluoro- + Ethane, pentafluoro- + Norflurane
• 1-Butene + Methane, difluoro-
• Methane, difluoro- + N,N-Dimethylacetamide

Find more mixtures with Methane, difluoro-.

Sources

• KDB Vapor Pressure Data
• Active Thermochemical Tables 1.112, gas-phase enthalpies of formation ChEDL chemicals 1.5.2, from Active Thermochemical Tables (ATcT), version 1.112, Argonne National Laboratory; Ruscic, B. et al. Active Thermochemical Tables: Thermochemistry for the 21st Century. J. Phys.: Conf. Ser. 2005, 16, 561.
• Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) ChEDL chemicals 1.5.2, from Bradley, J.-C.; Williams, A.; Lang, A. Jean-Claude Bradley Open Melting Point Dataset. Figshare, 2014 (CC0).
• IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 10 ChEDL chemicals 1.5.2, from Marsh, K. N.; Abramson, A.; Ambrose, D.; Morton, D. W.; Nikitin, E.; Tsonopoulos, C.; Young, C. L. Vapor-Liquid Critical Properties of Elements and Compounds. 10. Organic Compounds Containing Halogens. J. Chem. Eng. Data 2007, 52, 1509-1538.
• PSRK revision IV (2005), critical constants and acentric factors of 1000 components ChEDL chemicals 1.5.2, from Horstmann, S.; Jabłoniec, A.; Krafczyk, J.; Fischer, K.; Gmehling, J. PSRK Group Contribution Equation of State: Comprehensive Revision and Extension IV, Including Critical Constants and α-Function Parameters for 1000 Components. Fluid Phase Equilib. 2005, 227, 157-164.
• Crippen Method
• Crippen Method
• An Experimental Study of the pV T x Properties for Binary Mixtures of HFC-32 and HFC-125 from 258 to 354 K at Pressures up to 16.9 MPa1
• Burnett Measurements and Virial Coefficients for the R32+N2O System
• Viscosity of Alternative Refrigerants R407C and R407E in the Vapor Phase from 298.15 to 423.15K
• Isochoric Specific Heat Capacity of Difluoromethane (R32) and a Mixture of 51.11mass% Difluoromethane (R32) + 48.89mass% Pentafluoroethane (R125)
• Study on Isochoric Specific Heat Capacity of Liquid R-410A and HFE-347pcf2
• PVTx measurements for N2O+CH3F, N2O+CH2F2, and N2O+ CHF3 binary systems
• Vapor liquid equilibrium data for the difluoromethane (R32) dimethyl ether (RE170) system at temperatures from 283.03 to 363.21K and pressures up to 5.5MPa
• An experimental study of PVTx properties in the gas phase for binary mixtures of HFC-161 and HFC-32
• Vapor liquid equilibria and critical loci of binary and ternary systems composed of CH2F2, C2HF5 and C2H2F4
• Measurements of gas phase PVTx properties for the ternary HFC-161/125/32 system
• Vapor-liquid equilibrium of difluoromethane +1,1,1,2-tetrafluoroethane systems over a temperature range from 258.15 to 343.15K
• Vapor liquid equilibrium measurements and correlations for the binary mixture of difluoromethane + isobutane and the ternary mixture of propane + isobutane + difluoromethane
• Vapor-liquid equilibrium measurement and modeling for the difluoromethane + pentafluoroethane + propane ternary mixture
• Isothermal vapor-liquid equilibrium data for the binary mixture difluoromethane (HFC-32)+ ethyl fluoride (HFC-161) over a temperature range from 253.15 to 303.15 K
• Solubility of HFCs in lower alcohols
• Solubility of hydrofluorocarbons in aromatic solvents and alcohols: Experimental data and modeling with CPA EoS
• Vapor-liquid equilibria of difluoromethane + N,N-dimethylacetamide, difluoromethane + dimethylether diethylene glycol and 1,1-difluoroethane + dimethylether diethylene glycol systems
• Isothermal vapor-liquid equilibrium measurements and assessments of 1,1,1,3,3,3-hexafluoropropane+N,N-dimethylformamide/N-methyl-2-pyrrolidone working pairs for absorption power cycles
• Isothermal vapor liquid equilibrium measurements for difluoromethane (R32) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))
• Vapor liquid equilibrium measurements for difluoromethane (R32) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) and fluoroethane (R161) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf)
• Gaseous PvTx measurements of HFO-1234yf + HFC-32 binary mixture by single-sinker magnetic suspension densimeter
• Experimental measurements of saturated vapor pressure and isothermal vapor-liquid equilibria for 1,1,1,2-Tetrafluoroethane (HFC-134a) + 3,3,3-trifluoropropene (HFO-1243zf) binary system
• Experimental vapour liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane
• Solubilities of hydrofluorocarbons in ionic liquids: Experimental and modelling study
• Apparatus based on a compact single-sinker densimeter and measurements of the (p,.rho.,T) relation of difluoromethane
• Solubility of hydrofluorocarbons in phosphonium-based ionic liquids: Experimental and modelling study
• Liquid viscosity of low-GWP refrigerant mixtures (R32 + R1234yf) and (R125 + R1234yf)
• Volumetric properties of binary mixtures of {difluoromethane (R32) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))} at temperatures from 283.15 K to 363.15 K and pressures up to 100 MPa
• Diffusion coefficients and Henry's constants of hydrofluorocarbons in [HMIM][Tf2N], [HMIM][TfO], and [HMIM][BF4]
• Vapor liquid equilibria for binary mixtures of difluoromethane (R32) + fluoroethane (R161) and fluoroethane (R161) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))
• Vapor phase pvTx measurements of binary mixtures of difluoromethane (R32) and 2,3,3,3-tetrafluoroprop-1-ene (R1234yf)
• Experimental measurements and correlation of isothermal vapor-liquid equilibria for HFC-32 + HFO-1234ze (E) and HFC-134a + HFO-1234ze (E) binary systems
• Investigation on the Vapor-Liquid Equilibrium for the Ternary Mixture HFC-32 + HFC-125 + HFC-161 at Temperatures from 265.15 K to 303.15 K
• Experimental Clathrate Hydrate Dissociation Data for Systems Comprising Refrigerant + CaCl2 Aqueous Solutions
• Surface Tension and Liquid Viscosity of R32+R1234yf and R32 + R1234ze
• Isothermal Vapor Liquid Equilibrium of HFC-161 + DMETrEG within the Temperature Range of 293.15 353.15 K and Comparison for HFC-161 Combined with Different Absorbents
• Vapor-Liquid Equilibria for the Binary and Ternary Systems of Difluoromethane (R32), 1,1-Difluoroethane (R152a), and 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)
• Isothermal Vapor-Liquid Equilibrium of the Absorption Working Pairs (HFC-32 + DMETrEG, HFC-32 + NMP) at Temperatures from 293.15 to 343.15 K
• Vapor-Liquid Equilibrium Data for the Azeotropic Difluoromethane + Propane System at Temperatures from 294.83 to 343.26 K and Pressures up to 5.4 MPa
• Vapor-Liquid Equilibria for the Binary System Difluoromethane (HFC-32) + Propane (HC-290) at Seven Temperatures [(268.15, 278.15, 283.15, 288.15, 298.15, 308.15, and 318.15) K]
• Surface Tension Measurements of Difluoromethane(R-32) and the Binary Mixture Difluoromethane(R-32) + 1,1,1,2-tetrafluoroethane(R-134a) from (253 to 333) K
• Isothermal Vapor-Liquid Equilibrium and Excess Enthalpy Data for the Binary Systems Propylene oxide + 2-Methylpentane and Difluoromethane (R32) + Pentafluoroethane (R125)
• Surface Tension of Difluoromethane (R-32) + 1,1,1,2,3,3,3-Heptafluoropropane (R-227ea) from (253 to 333) K
• PVTx Properties in the Gas Phase for Difluoromethane (HFC-32) + Pentafluoroethane (HFC-125)
• Measurement of Vapor-Liquid Equilibria for the Binary Mixture Difluoromethane (HFC-32) + Propylene (R-1270)
• Isothermal VLE Measurements for Difluoromethane + Dimethylether and an Evaluation of Hydrogen Bonding
• Vapor-Liquid Equilibria of the Binary n-Butane (HC-600) + Difluoromethane (HFC-32), + Pentafluoroethane (HFC-125), + 1,1,1,2-Tetrafluoroethane (HFC-134a) Mixture Systems
• Vapor-Liquid Equilibrium for the Difluoromethane (R32) + n-Butane (R600) System
• Specific Heat Capacity at Constant Volume for R125 and R410A at Temperatures from (300 to 400) K and Pressures to 20 MPa
• Solubility and Diffusivity of Difluoromethane in Room-Temperature Ionic Liquids
• Vapor-Liquid Equilibria of the Difluoromethane + Dimethyl Ether and 1,1,1,2-Tetrafluoroethane + Dimethyl Ether Systems
• Acoustic Determination of Thermophysical Properties and Critical Parameters for R410A and Critical Line of xCO2 + (1 - x)R410A
• Vapor-Liquid Equilibrium Study of an Absorption Heat Transformer Working Fluid of (HFC-32 + DMF)
• Vapor Liquid Equilibrium Measurements of Difluoromethane + [Emim]OTf, Difluoromethane + [Bmim]OTf, Difluoroethane + [Emim]OTf, and Difluoroethane + [Bmim]OTf Systems
• Experimental Measurements and Thermodynamic Modeling of the Dissociation Conditions of Clathrate Hydrates for (Refrigerant + NaCl + Water) Systems
• Solubility of Hydrofluorocarbons in Halobenzene Solvents
• Measurement and Correlation of Isothermal Vapor Liquid Equilibrium of 1,1,1,3,3-Pentafluoropropane + N,N-Dimethylacetamide and 1,1,1,3,3,3-Hexafluoropropane + N,N-Dimethylacetamide/Diethylene Glycol Dimethyl Ether Systems
• Vapor Liquid Equilibrium of Three Hydrofluorocarbons with [HMIM][Tf2N]
• Vapor-Liquid Equilibrium Data for the Binary Mixture Difluoromethane (HFC-32) + Pentafluoroethane (HFC-125) of an Alternative Refrigerant
• PVTx Properties of Gaseous Mixtures of Difluoromethane and 1,1,1,2,3,3,3-Heptafluoropropane
• PVT Property Measurements for R143a, R125, and R32 in the Gaseous Phase
• PVTx Property Measurements for Difluoromethane + Pentafluoroethane (R32 + R125) in the Gaseous Phase
• Measurements of the Surface Tension for the R290 + R32 Mixture
• Measurements of the Isobaric Specific Heat Capacity for 1,1,1-Trifluoroethane (R143a), Pentafluoroethane (R125), and Difluoromethane (R32) in the Liquid Phase
• Kinematic Viscosity of R410A and R407C Refrigerant-Oil Mixtures in the Saturated Liquid Phase with Lubricant Mass Fraction in the Range of (0 to 0.0001)
• Joback Method
• KDB
• McGowan Method
• NIST Webbook

Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more. Take the time to validate and double check the source of the data.
Outlier This icon means that the value is more than 2 standard deviations away from the property mean.
Calculated This icon marks a calculated value or equation: a prediction, not a measurement.
Compiled This icon marks a compiled value or equation: taken from a data compilation such as ChemSep, not from an original measurement report.
These property values are available through the Cheméo API. A free account gives you an access key.