Mixture of Butanoic acid + Propanoic acid

Datasets

1. Eutectic composition: mole fraction (4)
2. Eutectic temperature, K (2)
3. P_vap - Vapor or sublimation pressure, kPa (2)
4. n₀ - Refractive index (Na D-line) (2)
5. ρ_l - Mass density, kg/m3 (2)
6. c_sound,fluid - Speed of Sound, m/s (2)
7. T_fus - Solid-liquid equilibrium temperature, K (4)

Eutectic composition: mole fraction of Propanoic acid (2) [ref]

Pressure, kPa - Liquid	Eutectic composition: mole fraction of Propanoic acid (2) - Liquid
84.50	0.6280

Mole fraction of Butanoic acid (1) [ref]

Fixed		Measured
Temperature, K - Gas	Mole fraction of Butanoic acid (1) - Liquid	Mole fraction of Butanoic acid (1) - Gas
373.10	0.5658	0.4130
413.15	0.5588	0.4298

Eutectic composition: mole fraction of Propanoic acid (2) [ref]

Pressure, kPa - Liquid	Eutectic composition: mole fraction of Propanoic acid (2) - Liquid
84.50	0.6280

Mole fraction of Butanoic acid (1) [ref]

Fixed		Measured
Temperature, K - Gas	Mole fraction of Butanoic acid (1) - Liquid	Mole fraction of Butanoic acid (1) - Gas
373.10	0.5658	0.4130
413.15	0.5588	0.4298

Eutectic temperature, K [ref]

Pressure, kPa - Liquid	Eutectic temperature, K - Liquid
84.50	225.00

Eutectic temperature, K [ref]

Pressure, kPa - Liquid	Eutectic temperature, K - Liquid
84.50	225.00

Vapor or sublimation pressure, kPa [ref]

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Butanoic acid (1) - Liquid	Vapor or sublimation pressure, kPa - Liquid
373.10	0.0000	23.38
373.10	0.0507	22.63
373.10	0.1010	21.84
373.10	0.2016	20.40
373.10	0.3095	18.72
373.10	0.4166	17.31
373.10	0.4453	16.72
373.10	0.4995	15.98
373.10	0.5220	15.76
373.10	0.6022	14.43
373.10	0.7065	13.03
373.10	0.8068	11.66
373.10	0.9005	10.55
373.10	0.9500	9.91
373.10	1.0000	9.38
413.15	0.0000	96.29
413.15	0.0523	93.58
413.15	0.1037	90.87
413.15	0.2067	85.28
413.15	0.3181	79.66
413.15	0.4240	74.41
413.15	0.4304	73.58
413.15	0.4844	70.86
413.15	0.5265	69.33
413.15	0.5800	66.52
413.15	0.5901	65.53
413.15	0.6939	60.25
413.15	0.7960	55.21
413.15	0.8991	50.37
413.15	0.9502	47.88
413.15	1.0000	45.85

Vapor or sublimation pressure, kPa [ref]

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Butanoic acid (1) - Liquid	Vapor or sublimation pressure, kPa - Liquid
373.10	0.0000	23.38
373.10	0.0507	22.63
373.10	0.1010	21.84
373.10	0.2016	20.40
373.10	0.3095	18.72
373.10	0.4166	17.31
373.10	0.4453	16.72
373.10	0.4995	15.98
373.10	0.5220	15.76
373.10	0.6022	14.43
373.10	0.7065	13.03
373.10	0.8068	11.66
373.10	0.9005	10.55
373.10	0.9500	9.91
373.10	1.0000	9.38
413.15	0.0000	96.29
413.15	0.0523	93.58
413.15	0.1037	90.87
413.15	0.2067	85.28
413.15	0.3181	79.66
413.15	0.4240	74.41
413.15	0.4304	73.58
413.15	0.4844	70.86
413.15	0.5265	69.33
413.15	0.5800	66.52
413.15	0.5901	65.53
413.15	0.6939	60.25
413.15	0.7960	55.21
413.15	0.8991	50.37
413.15	0.9502	47.88
413.15	1.0000	45.85

Refractive index (Na D-line) [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Butanoic acid (1) - Liquid	Refractive index (Na D-line) - Liquid
293.15	0.0000	1.3868
293.15	0.0501	1.3875
293.15	0.0985	1.3881
293.15	0.1995	1.3894
293.15	0.2996	1.3906
293.15	0.3999	1.3918
293.15	0.4999	1.393
293.15	0.6000	1.3941
293.15	0.6997	1.3952
293.15	0.7993	1.3962
293.15	0.8944	1.3972
293.15	0.9497	1.3978
293.15	1.0000	1.3983
298.15	0.0000	1.3847
298.15	0.0501	1.3854
298.15	0.0985	1.386
298.15	0.1995	1.3873
298.15	0.2996	1.3885
298.15	0.3999	1.3897
298.15	0.4999	1.3908
298.15	0.6000	1.392
298.15	0.6997	1.3931
298.15	0.7993	1.3941
298.15	0.8944	1.3951
298.15	0.9497	1.3957
298.15	1.0000	1.3962
303.15	0.0000	1.3825
303.15	0.0501	1.3832
303.15	0.0985	1.3838
303.15	0.1995	1.3851
303.15	0.2996	1.3863
303.15	0.3999	1.3875
303.15	0.4999	1.3887
303.15	0.6000	1.3898
303.15	0.6997	1.3909
303.15	0.7993	1.3919
303.15	0.8944	1.3929
303.15	0.9497	1.3935
303.15	1.0000	1.394
308.15	0.0000	1.3804
308.15	0.0501	1.381
308.15	0.0985	1.3816
308.15	0.1995	1.3829
308.15	0.2996	1.3842
308.15	0.3999	1.3854
308.15	0.4999	1.3865
308.15	0.6000	1.3876
308.15	0.6997	1.3887
308.15	0.7993	1.3898
308.15	0.8944	1.3908
308.15	0.9497	1.3913
308.15	1.0000	1.3918
313.15	0.0000	1.3782
313.15	0.0501	1.3789
313.15	0.0985	1.3795
313.15	0.1995	1.3808
313.15	0.2996	1.382
313.15	0.3999	1.3832
313.15	0.4999	1.3844
313.15	0.6000	1.3855
313.15	0.6997	1.3866
313.15	0.7993	1.3876
313.15	0.8944	1.3886
313.15	0.9497	1.3892
313.15	1.0000	1.3897

Refractive index (Na D-line) [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Butanoic acid (1) - Liquid	Refractive index (Na D-line) - Liquid
293.15	0.0000	1.3868
293.15	0.0501	1.3875
293.15	0.0985	1.3881
293.15	0.1995	1.3894
293.15	0.2996	1.3906
293.15	0.3999	1.3918
293.15	0.4999	1.393
293.15	0.6000	1.3941
293.15	0.6997	1.3952
293.15	0.7993	1.3962
293.15	0.8944	1.3972
293.15	0.9497	1.3978
293.15	1.0000	1.3983
298.15	0.0000	1.3847
298.15	0.0501	1.3854
298.15	0.0985	1.386
298.15	0.1995	1.3873
298.15	0.2996	1.3885
298.15	0.3999	1.3897
298.15	0.4999	1.3908
298.15	0.6000	1.392
298.15	0.6997	1.3931
298.15	0.7993	1.3941
298.15	0.8944	1.3951
298.15	0.9497	1.3957
298.15	1.0000	1.3962
303.15	0.0000	1.3825
303.15	0.0501	1.3832
303.15	0.0985	1.3838
303.15	0.1995	1.3851
303.15	0.2996	1.3863
303.15	0.3999	1.3875
303.15	0.4999	1.3887
303.15	0.6000	1.3898
303.15	0.6997	1.3909
303.15	0.7993	1.3919
303.15	0.8944	1.3929
303.15	0.9497	1.3935
303.15	1.0000	1.394
308.15	0.0000	1.3804
308.15	0.0501	1.381
308.15	0.0985	1.3816
308.15	0.1995	1.3829
308.15	0.2996	1.3842
308.15	0.3999	1.3854
308.15	0.4999	1.3865
308.15	0.6000	1.3876
308.15	0.6997	1.3887
308.15	0.7993	1.3898
308.15	0.8944	1.3908
308.15	0.9497	1.3913
308.15	1.0000	1.3918
313.15	0.0000	1.3782
313.15	0.0501	1.3789
313.15	0.0985	1.3795
313.15	0.1995	1.3808
313.15	0.2996	1.382
313.15	0.3999	1.3832
313.15	0.4999	1.3844
313.15	0.6000	1.3855
313.15	0.6997	1.3866
313.15	0.7993	1.3876
313.15	0.8944	1.3886
313.15	0.9497	1.3892
313.15	1.0000	1.3897

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Butanoic acid (1) - Liquid	Mass density, kg/m3 - Liquid
293.15	0.0000	993.88
293.15	0.0501	991.58
293.15	0.0985	989.44
293.15	0.1995	985.13
293.15	0.2996	981.1
293.15	0.3999	977.25
293.15	0.4999	973.59
293.15	0.6000	970.11
293.15	0.6997	966.82
293.15	0.7993	963.67
293.15	0.8944	960.82
293.15	0.9497	959.21
293.15	1.0000	957.78
298.15	0.0000	988.48
298.15	0.0501	986.21
298.15	0.0985	984.09
298.15	0.1995	979.83
298.15	0.2996	975.85
298.15	0.3999	972.05
298.15	0.4999	968.43
298.15	0.6000	964.99
298.15	0.6997	961.74
298.15	0.7993	958.63
298.15	0.8944	955.81
298.15	0.9497	954.22
298.15	1.0000	952.82
303.15	0.0000	983.07
303.15	0.0501	980.83
303.15	0.0985	978.73
303.15	0.1995	974.52
303.15	0.2996	970.59
303.15	0.3999	966.83
303.15	0.4999	963.26
303.15	0.6000	959.86
303.15	0.6997	956.66
303.15	0.7993	953.58
303.15	0.8944	950.8
303.15	0.9497	949.23
303.15	1.0000	947.84
308.15	0.0000	977.67
308.15	0.0501	975.45
308.15	0.0985	973.38
308.15	0.1995	969.22
308.15	0.2996	965.34
308.15	0.3999	961.63
308.15	0.4999	958.1
308.15	0.6000	954.74
308.15	0.6997	951.57
308.15	0.7993	948.54
308.15	0.8944	945.8
308.15	0.9497	944.25
308.15	1.0000	942.88
313.15	0.0000	972.27
313.15	0.0501	970.08
313.15	0.0985	968.03
313.15	0.1995	963.92
313.15	0.2996	960.08
313.15	0.3999	956.42
313.15	0.4999	952.94
313.15	0.6000	949.62
313.15	0.6997	946.5
313.15	0.7993	943.5
313.15	0.8944	940.8
313.15	0.9497	939.26
313.15	1.0000	937.91

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Butanoic acid (1) - Liquid	Mass density, kg/m3 - Liquid
293.15	0.0000	993.88
293.15	0.0501	991.58
293.15	0.0985	989.44
293.15	0.1995	985.13
293.15	0.2996	981.1
293.15	0.3999	977.25
293.15	0.4999	973.59
293.15	0.6000	970.11
293.15	0.6997	966.82
293.15	0.7993	963.67
293.15	0.8944	960.82
293.15	0.9497	959.21
293.15	1.0000	957.78
298.15	0.0000	988.48
298.15	0.0501	986.21
298.15	0.0985	984.09
298.15	0.1995	979.83
298.15	0.2996	975.85
298.15	0.3999	972.05
298.15	0.4999	968.43
298.15	0.6000	964.99
298.15	0.6997	961.74
298.15	0.7993	958.63
298.15	0.8944	955.81
298.15	0.9497	954.22
298.15	1.0000	952.82
303.15	0.0000	983.07
303.15	0.0501	980.83
303.15	0.0985	978.73
303.15	0.1995	974.52
303.15	0.2996	970.59
303.15	0.3999	966.83
303.15	0.4999	963.26
303.15	0.6000	959.86
303.15	0.6997	956.66
303.15	0.7993	953.58
303.15	0.8944	950.8
303.15	0.9497	949.23
303.15	1.0000	947.84
308.15	0.0000	977.67
308.15	0.0501	975.45
308.15	0.0985	973.38
308.15	0.1995	969.22
308.15	0.2996	965.34
308.15	0.3999	961.63
308.15	0.4999	958.1
308.15	0.6000	954.74
308.15	0.6997	951.57
308.15	0.7993	948.54
308.15	0.8944	945.8
308.15	0.9497	944.25
308.15	1.0000	942.88
313.15	0.0000	972.27
313.15	0.0501	970.08
313.15	0.0985	968.03
313.15	0.1995	963.92
313.15	0.2996	960.08
313.15	0.3999	956.42
313.15	0.4999	952.94
313.15	0.6000	949.62
313.15	0.6997	946.5
313.15	0.7993	943.5
313.15	0.8944	940.8
313.15	0.9497	939.26
313.15	1.0000	937.91

Speed of sound, m/s [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Butanoic acid (1) - Liquid	Speed of sound, m/s - Liquid
293.15	0.0000	1165.6
293.15	0.0501	1167.3
293.15	0.0985	1168.9
293.15	0.1995	1172.0
293.15	0.2996	1175.1
293.15	0.3999	1178.1
293.15	0.4999	1181.2
293.15	0.6000	1184.2
293.15	0.6997	1187.1
293.15	0.7993	1190.0
293.15	0.8944	1192.7
293.15	0.9497	1194.2
293.15	1.0000	1195.5
298.15	0.0000	1146.7
298.15	0.0501	1148.4
298.15	0.0985	1150.0
298.15	0.1995	1153.3
298.15	0.2996	1156.4
298.15	0.3999	1159.5
298.15	0.4999	1162.5
298.15	0.6000	1165.5
298.15	0.6997	1168.4
298.15	0.7993	1171.4
298.15	0.8944	1174.0
298.15	0.9497	1175.6
298.15	1.0000	1176.9
303.15	0.0000	1127.7
303.15	0.0501	1129.5
303.15	0.0985	1131.1
303.15	0.1995	1134.4
303.15	0.2996	1137.5
303.15	0.3999	1140.6
303.15	0.4999	1143.7
303.15	0.6000	1146.7
303.15	0.6997	1149.7
303.15	0.7993	1152.6
303.15	0.8944	1155.3
303.15	0.9497	1156.9
303.15	1.0000	1158.2
308.15	0.0000	1108.9
308.15	0.0501	1110.7
308.15	0.0985	1112.3
308.15	0.1995	1115.7
308.15	0.2996	1118.8
308.15	0.3999	1121.9
308.15	0.4999	1125.0
308.15	0.6000	1128.1
308.15	0.6997	1131.0
308.15	0.7993	1134.0
308.15	0.8944	1136.7
308.15	0.9497	1138.3
308.15	1.0000	1139.7
313.15	0.0000	1090.2
313.15	0.0501	1092.0
313.15	0.0985	1093.7
313.15	0.1995	1097.1
313.15	0.2996	1100.2
313.15	0.3999	1103.4
313.15	0.4999	1106.5
313.15	0.6000	1109.6
313.15	0.6997	1112.6
313.15	0.7993	1115.6
313.15	0.8944	1118.3
313.15	0.9497	1119.9
313.15	1.0000	1121.3

Speed of sound, m/s [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Butanoic acid (1) - Liquid	Speed of sound, m/s - Liquid
293.15	0.0000	1165.6
293.15	0.0501	1167.3
293.15	0.0985	1168.9
293.15	0.1995	1172.0
293.15	0.2996	1175.1
293.15	0.3999	1178.1
293.15	0.4999	1181.2
293.15	0.6000	1184.2
293.15	0.6997	1187.1
293.15	0.7993	1190.0
293.15	0.8944	1192.7
293.15	0.9497	1194.2
293.15	1.0000	1195.5
298.15	0.0000	1146.7
298.15	0.0501	1148.4
298.15	0.0985	1150.0
298.15	0.1995	1153.3
298.15	0.2996	1156.4
298.15	0.3999	1159.5
298.15	0.4999	1162.5
298.15	0.6000	1165.5
298.15	0.6997	1168.4
298.15	0.7993	1171.4
298.15	0.8944	1174.0
298.15	0.9497	1175.6
298.15	1.0000	1176.9
303.15	0.0000	1127.7
303.15	0.0501	1129.5
303.15	0.0985	1131.1
303.15	0.1995	1134.4
303.15	0.2996	1137.5
303.15	0.3999	1140.6
303.15	0.4999	1143.7
303.15	0.6000	1146.7
303.15	0.6997	1149.7
303.15	0.7993	1152.6
303.15	0.8944	1155.3
303.15	0.9497	1156.9
303.15	1.0000	1158.2
308.15	0.0000	1108.9
308.15	0.0501	1110.7
308.15	0.0985	1112.3
308.15	0.1995	1115.7
308.15	0.2996	1118.8
308.15	0.3999	1121.9
308.15	0.4999	1125.0
308.15	0.6000	1128.1
308.15	0.6997	1131.0
308.15	0.7993	1134.0
308.15	0.8944	1136.7
308.15	0.9497	1138.3
308.15	1.0000	1139.7
313.15	0.0000	1090.2
313.15	0.0501	1092.0
313.15	0.0985	1093.7
313.15	0.1995	1097.1
313.15	0.2996	1100.2
313.15	0.3999	1103.4
313.15	0.4999	1106.5
313.15	0.6000	1109.6
313.15	0.6997	1112.6
313.15	0.7993	1115.6
313.15	0.8944	1118.3
313.15	0.9497	1119.9
313.15	1.0000	1121.3

Solid-liquid equilibrium temperature, K [ref]

Operational condition: Pressure, kPa = 84.5 (Liquid)

Mole fraction of Butanoic acid (1) - Liquid	Solid-liquid equilibrium temperature, K - Liquid
0.0000	252.00
0.0790	248.00
0.0790	247.00
0.1500	240.00
0.1500	240.00
0.2180	235.00
0.2780	233.00
0.2780	233.00
0.3350	228.00

Solid-liquid equilibrium temperature, K [ref]

Operational condition: Pressure, kPa = 84.5 (Liquid)

Mole fraction of Butanoic acid (1) - Liquid	Solid-liquid equilibrium temperature, K - Liquid
0.3960	228.00
0.3960	228.00
0.4530	230.00
0.4530	230.00
0.5110	235.00
0.5110	235.00
0.5710	240.00
0.5710	240.00
0.6600	245.00
0.6600	245.00
0.7450	251.00
0.7450	251.00
0.8040	256.00
0.8040	256.00
0.8720	260.00
0.8720	260.00
0.9790	269.00

Solid-liquid equilibrium temperature, K [ref]

Operational condition: Pressure, kPa = 84.5 (Liquid)

Mole fraction of Butanoic acid (1) - Liquid	Solid-liquid equilibrium temperature, K - Liquid
0.0000	252.00
0.0790	248.00
0.0790	247.00
0.1500	240.00
0.1500	240.00
0.2180	235.00
0.2780	233.00
0.2780	233.00
0.3350	228.00

Solid-liquid equilibrium temperature, K [ref]

Operational condition: Pressure, kPa = 84.5 (Liquid)

Mole fraction of Butanoic acid (1) - Liquid	Solid-liquid equilibrium temperature, K - Liquid
0.3960	228.00
0.3960	228.00
0.4530	230.00
0.4530	230.00
0.5110	235.00
0.5110	235.00
0.5710	240.00
0.5710	240.00
0.6600	245.00
0.6600	245.00
0.7450	251.00
0.7450	251.00
0.8040	256.00
0.8040	256.00
0.8720	260.00
0.8720	260.00
0.9790	269.00

Sources

• Differential scanning calorimetry determination of Solid-Liquid equilibria phase diagrams for binary monocarboxylic acids solutions
• Density, speed of sound, and refractive index measurements for the binary systems (butanoic acid + propanoic acid, or 2-methyl-propanoic acid) at T = (293.15 to 313.15) K
• Vapor-Liquid Equilibria on Four Binary Systems: 2-Phenylpropionaldehyde + Phenol, Propylene Glycol Monomethyl Ether + Nitroethane, Dimethyl Ether + Propylene, and N-Butyric Acid + Propionic Acid