Mixture of Difluoromethane + Isobutane

Datasets

1. Mole fraction (2)
2. P_vap - Vapor or sublimation pressure, kPa (2)

Mole fraction of Difluoromethane (1) [ref]

Fixed		Measured
Mole fraction of Difluoromethane (1) - Liquid	Temperature, K - Gas	Mole fraction of Difluoromethane (1) - Gas
0.0170	290.00	0.1024
0.0196	260.00	0.2871
0.0229	270.00	0.2711
0.0366	310.00	0.2614
0.0368	290.00	0.3634
0.0386	260.00	0.5155
0.0469	280.00	0.3697
0.0607	290.00	0.4746
0.0663	270.00	0.5954
0.0716	260.00	0.6419
0.0748	280.00	0.5491
0.0796	310.00	0.4334
0.0933	290.00	0.5812
0.1167	280.00	0.6437
0.1176	260.00	0.7253
0.1215	270.00	0.7002
0.1222	310.00	0.5233
0.1746	290.00	0.6906
0.1813	280.00	0.7233
0.1943	260.00	0.7807
0.2281	310.00	0.6347
0.2305	270.00	0.7804
0.2678	290.00	0.7445
0.3067	280.00	0.7775
0.3248	310.00	0.6695
0.3594	290.00	0.7659
0.3714	260.00	0.8173
0.3951	321.80	0.7075
0.4230	270.00	0.8146
0.4404	310.00	0.7401
0.4430	280.00	0.8036
0.4995	321.80	0.7466
0.5232	301.80	0.7888
0.5244	290.00	0.8081
0.6461	310.00	0.8161

Mole fraction of Difluoromethane (1) [ref]

Fixed		Measured
Mole fraction of Difluoromethane (1) - Liquid	Temperature, K - Gas	Mole fraction of Difluoromethane (1) - Gas
0.0170	290.00	0.1024
0.0196	260.00	0.2871
0.0229	270.00	0.2711
0.0366	310.00	0.2614
0.0368	290.00	0.3634
0.0386	260.00	0.5155
0.0469	280.00	0.3697
0.0607	290.00	0.4746
0.0663	270.00	0.5954
0.0716	260.00	0.6419
0.0748	280.00	0.5491
0.0796	310.00	0.4334
0.0933	290.00	0.5812
0.1167	280.00	0.6437
0.1176	260.00	0.7253
0.1215	270.00	0.7002
0.1222	310.00	0.5233
0.1746	290.00	0.6906
0.1813	280.00	0.7233
0.1943	260.00	0.7807
0.2281	310.00	0.6347
0.2305	270.00	0.7804
0.2678	290.00	0.7445
0.3067	280.00	0.7775
0.3248	310.00	0.6695
0.3594	290.00	0.7659
0.3714	260.00	0.8173
0.3951	321.80	0.7075
0.4230	270.00	0.8146
0.4404	310.00	0.7401
0.4430	280.00	0.8036
0.4995	321.80	0.7466
0.5232	301.80	0.7888
0.5244	290.00	0.8081
0.6461	310.00	0.8161

Vapor or sublimation pressure, kPa [ref]

Fixed		Measured
Mole fraction of Difluoromethane (1) - Liquid	Temperature, K - Liquid	Vapor or sublimation pressure, kPa - Liquid
0.0170	290.00	298.50
0.0196	260.00	132.30
0.0229	270.00	190.30
0.0366	310.00	698.60
0.0368	290.00	437.40
0.0386	260.00	203.70
0.0469	280.00	323.60
0.0607	290.00	543.80
0.0663	270.00	362.00
0.0716	260.00	281.00
0.0748	280.00	466.40
0.0796	310.00	933.30
0.0933	290.00	697.20
0.1167	280.00	592.20
0.1176	260.00	365.30
0.1215	270.00	489.10
0.1222	310.00	1164.70
0.1746	290.00	925.50
0.1813	280.00	746.80
0.1943	260.00	448.20
0.2281	310.00	1566.60
0.2305	270.00	634.70
0.2678	290.00	1091.70
0.3067	280.00	890.90
0.3248	310.00	1791.10
0.3594	290.00	1192.90
0.3714	260.00	522.80
0.3951	321.80	2426.80
0.4230	270.00	725.60
0.4404	310.00	1999.80
0.4430	280.00	996.10
0.4995	321.80	2630.60
0.5232	301.80	1722.30
0.5244	290.00	1299.50
0.6461	310.00	2204.80

Vapor or sublimation pressure, kPa [ref]

Fixed		Measured
Mole fraction of Difluoromethane (1) - Liquid	Temperature, K - Liquid	Vapor or sublimation pressure, kPa - Liquid
0.0170	290.00	298.50
0.0196	260.00	132.30
0.0229	270.00	190.30
0.0366	310.00	698.60
0.0368	290.00	437.40
0.0386	260.00	203.70
0.0469	280.00	323.60
0.0607	290.00	543.80
0.0663	270.00	362.00
0.0716	260.00	281.00
0.0748	280.00	466.40
0.0796	310.00	933.30
0.0933	290.00	697.20
0.1167	280.00	592.20
0.1176	260.00	365.30
0.1215	270.00	489.10
0.1222	310.00	1164.70
0.1746	290.00	925.50
0.1813	280.00	746.80
0.1943	260.00	448.20
0.2281	310.00	1566.60
0.2305	270.00	634.70
0.2678	290.00	1091.70
0.3067	280.00	890.90
0.3248	310.00	1791.10
0.3594	290.00	1192.90
0.3714	260.00	522.80
0.3951	321.80	2426.80
0.4230	270.00	725.60
0.4404	310.00	1999.80
0.4430	280.00	996.10
0.4995	321.80	2630.60
0.5232	301.80	1722.30
0.5244	290.00	1299.50
0.6461	310.00	2204.80

Sources

• Vapor liquid equilibrium measurements and correlations for the binary mixture of difluoromethane + isobutane and the ternary mixture of propane + isobutane + difluoromethane